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2014-15 Influenza Season Vaccination Coverage Estimates for Local Areas and Territories

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Influenza vaccination coverage for children 6 months through 17 years and adults 18 years and older is available from NIS-Flu and BRFSS for selected local areas and territories. Additional information on methods is available at Surveillance of Influenza Vaccination Coverage — United States, 2007–08 Through 2011–12 Influenza Seasons.

Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Illinois-City of Chicago, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 1,960 3.1 (±1.3) 9.5 (±2.2) 19.4 (±2.8) 39.1 (±3.6) 50.5 (±3.9) 55.0 (±3.9) 57.2 (±4.0) 59.0 (±4.1) 59.0 (±4.1) 61.0 (±4.7) 61.2 (±4.7)
6 mos-4 yrs 587 4.8 (±2.4) 9.7 (±3.2) 22.0 (±5.5) 41.1 (±6.3) 52.4 (±6.7) 59.4 (±6.9) 61.2 (±7.0) 62.5 (±7.2) 62.5 (±7.2) 67.4 (±9.8) 67.4 (±9.8)
5-12 yrs 888 § 12.0 (±3.8) 21.2 (±4.4) 44.6 (±5.4) 58.6 (±5.5) 61.9 (±5.5) 62.3 (±5.5) 63.9 (±5.5) 63.9 (±5.5) 64.9 (±5.7) 65.2 (±5.8)
13-17 yrs 485 § 5.0 (±2.3) 13.7 (±3.9) 27.4 (±5.8) 34.2 (±6.3) 38.3 (±6.6) 44.7 (±7.5) 47.1 (±7.7) 47.1 (±7.7) 47.1 (±7.7) 47.1 (±7.7)
Adults
18+ yrs 1,497 0.1 (±0.0) 1.2 (±0.6) 7.4 (±1.8) 24.2 (±2.9) 32.2 (±3.3) 35.6 (±3.3) 37.7 (±3.5) 39.8 (±3.5) 40.5 (±3.7) 40.5 (±3.7) 40.5 (±3.7)
18-64 yrs 1,050 § 1.3 (±0.6) 6.8 (±2.0) 20.8 (±3.3) 28.0 (±3.7) 30.8 (±3.7) 32.8 (±3.9) 34.5 (±4.1) 35.0 (±4.1) 35.0 (±4.1) 35.0 (±4.1)
18-64 yrs with high
risk conditions
248 § § 9.9 (±4.9) 23.7 (±6.9) 29.2 (±7.3) 32.1 (±7.6) 34.7 (±8.0) 38.0 (±8.2) 38.0 (±8.2) 38.0 (±8.2) 38.0 (±8.2)
18-49 yrs 619 0.0 (±0.0) § 6.6 (±2.4) 18.4 (±4.1) 26.6 (±4.7) 29.5 (±4.9) 30.8 (±4.9) 32.4 (±5.3) 33.2 (±5.3) 33.2 (±5.3) 33.2 (±5.3)
18-49 yrs with high risk conditions 98 0.0 (±0.0) § § 20.0 (±10.4)|| 24.4 (±11.0)|| 28.5 (±11.6)|| 28.5 (±11.6)|| 30.4 (±12.0)|| 30.4 (±12.0)|| 30.4 (±12.0)|| 30.4 (±12.0)||
50-64 yrs 431 § § 7.5 (±2.9) 26.1 (±5.3) 31.0 (±5.5) 33.5 (±5.7) 37.4 (±6.1) 39.2 (±6.3) 39.2 (±6.3) 39.2 (±6.3) 39.2 (±6.3)
65+ yrs 447 § § 9.9 (±3.3) 40.7 (±5.9) 52.2 (±6.1) 58.9 (±6.1) 61.0 (±5.9) 65.4 (±6.3) 67.6 (±6.5) 67.6 (±6.5) 67.6 (±6.5)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Illinois-Rest of State**, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,779 2.1 (±0.8) 5.7 (±1.2) 14.4 (±1.9) 31.9 (±2.4) 44.5 (±2.8) 48.4 (±2.8) 49.9 (±2.9) 50.6 (±2.9) 50.7 (±2.9) 50.9 (±2.9) 51.0 (±2.9)
6 mos-4 yrs 790 § 6.6 (±2.7) 21.7 (±4.5) 42.8 (±5.1) 57.8 (±5.2) 62.1 (±5.2) 65.7 (±5.2) 66.9 (±5.3) 66.9 (±5.3) 67.3 (±5.3) 67.3 (±5.3)
5-12 yrs 1,319 § 5.7 (±1.8) 13.8 (±2.6) 32.4 (±3.4) 44.0 (±3.8) 48.5 (±4.0) 49.2 (±4.0) 49.9 (±4.0) 50.1 (±4.1) 50.5 (±4.1) 50.5 (±4.1)
13-17 yrs 670 § 5.0 (±1.8) 10.2 (±3.2) 23.1 (±4.1) 35.5 (±5.0) 38.2 (±5.1) 39.6 (±5.2) 39.8 (±5.2) 39.8 (±5.2) 39.8 (±5.2) 40.1 (±5.2)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs with high
risk conditions
—** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs with high risk conditions —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, New York-City of New York, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,461 2.6 (±0.9) 10.1 (±2.1) 24.8 (±2.7) 44.6 (±3.1) 56.5 (±3.3) 62.7 (±3.3) 66.5 (±3.4) 68.9 (±3.4) 71.0 (±3.4) 72.1 (±3.5) 72.1 (±3.5)
6 mos-4 yrs 809 3.2 (±1.6) 11.2 (±3.6) 26.6 (±4.6) 48.5 (±5.1) 60.8 (±5.2) 67.7 (±5.2) 72.0 (±5.2) 74.4 (±5.3) 76.0 (±5.3) 77.1 (±5.4) 77.1 (±5.4)
5-12 yrs 1,120 § 8.3 (±2.4) 25.1 (±3.6) 47.0 (±4.2) 60.7 (±4.3) 66.9 (±4.3) 70.3 (±4.3) 73.1 (±4.3) 74.8 (±4.4) 76.3 (±4.6) 76.3 (±4.6)
13-17 yrs 532 § 12.3 (±5.3) 22.6 (±5.8) 36.6 (±6.6) 44.5 (±6.8) 50.0 (±7.0) 53.5 (±7.3) 55.2 (±7.4) 58.6 (±8.0) 58.6 (±8.0) 58.6 (±8.0)
Adults
18+ yrs 3,129 § 0.8 (±0.4) 7.7 (±1.2) 22.4 (±2.0) 31.2 (±2.2) 36.2 (±2.4) 39.5 (±2.4) 41.2 (±2.5) 42.2 (±2.7) 44.2 (±3.1) 44.2 (±3.1)
18-64 yrs 2,239 § 0.8 (±0.4) 6.7 (±1.4) 19.0 (±2.2) 27.2 (±2.5) 32.1 (±2.7) 35.5 (±2.7) 37.2 (±2.9) 38.0 (±3.1) 40.4 (±3.7) 40.4 (±3.7)
18-64 yrs with high
risk conditions
497 § § 9.4 (±2.9) 24.7 (±4.7) 38.0 (±5.9) 43.9 (±6.1) 48.5 (±6.5) 52.6 (±7.3) 53.8 (±7.3) 57.7 (±8.6) 57.7 (±8.6)
18-49 yrs 1,385 § § 6.4 (±1.8) 16.7 (±2.5) 24.0 (±3.1) 29.0 (±3.3) 32.3 (±3.3) 33.9 (±3.7) 34.7 (±3.7) 36.0 (±4.5) 36.0 (±4.5)
18-49 yrs with high risk conditions 211 § § 7.4 (±3.9) 20.9 (±6.5) 35.9 (±8.6) 43.9 (±9.2) 50.9 (±10.0) 56.0 (±11.2)|| 56.0 (±11.2)|| 56.0 (±11.2)|| 56.0 (±11.2)||
50-64 yrs 854 § § 7.5 (±2.0) 25.0 (±3.7) 35.7 (±4.1) 40.4 (±4.3) 44.1 (±4.5) 45.8 (±4.7) 46.8 (±4.7) 51.9 (±6.7) 51.9 (±6.7)
65+ yrs 890 § § 12.1 (±2.4) 38.5 (±4.1) 50.4 (±4.1) 55.5 (±4.1) 58.2 (±4.1) 60.4 (±4.3) 61.9 (±4.5) 62.5 (±4.5) 62.5 (±4.5)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, New York-Rest of State**, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,045 1.6 (±0.7) 4.2 (±1.1) 16.0 (±2.2) 38.5 (±3.4) 52.1 (±3.6) 58.2 (±3.6) 60.7 (±3.6) 62.2 (±3.6) 62.5 (±3.6) 63.5 (±3.9) 63.5 (±3.9)
6 mos-4 yrs 620 § 4.8 (±2.3) 15.8 (±3.7) 46.0 (±6.9) 62.0 (±6.4) 66.4 (±6.3) 69.6 (±6.2) 72.6 (±6.3) 73.0 (±6.3) 73.3 (±6.3) 73.3 (±6.3)
5-12 yrs 964 § 4.9 (±1.6) 18.6 (±3.3) 39.8 (±4.4) 53.0 (±4.7) 60.1 (±4.8) 62.7 (±4.8) 63.2 (±4.8) 63.6 (±4.8) 65.7 (±5.7) 65.7 (±5.7)
13-17 yrs 461 § § 12.1 (±4.0) 30.7 (±5.7) 42.8 (±7.0) 48.6 (±7.1) 50.5 (±7.1) 52.2 (±7.2) 52.6 (±7.2) 52.6 (±7.2) 52.6 (±7.2)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs with high
risk conditions
—** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs with high risk conditions —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Pennsylvania-Philadelphia County, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

% 95%

CI

Children
6 mos-17 yrs 2,253 2.1 (±0.9) 6.7 (±1.6) 21.8 (±2.7) 42.6 (±3.7) 56.5 (±4.0) 62.4 (±3.8) 66.6 (±3.8) 71.2 (±3.8) 72.7 (±3.8) 74.0 (±3.9) 74.9 (±3.9)
6 mos-4 yrs 748 2.3 (±1.2) 7.0 (±2.8) 23.3 (±4.8) 46.2 (±6.2) 62.3 (±6.3) 66.8 (±6.1) 71.2 (±6.0) 74.2 (±6.0) 78.2 (±6.2) 82.1 (±6.5) 82.9 (±6.4)
5-12 yrs 1,010 § 7.2 (±2.4) 21.5 (±3.7) 43.1 (±5.3) 56.6 (±5.6) 63.6 (±5.4) 67.3 (±5.3) 74.0 (±5.2) 74.5 (±5.2) 75.1 (±5.2) 75.4 (±5.2)
13-17 yrs 495 § 5.2 (±2.5) 20.3 (±5.7) 36.0 (±6.5) 47.6 (±7.1) 53.3 (±7.3) 58.1 (±7.4) 60.8 (±7.6) 60.8 (±7.6) 60.8 (±7.6) 62.8 (±8.1)
Adults
18+ yrs 899 § 1.8 (±1.0) 7.7 (±2.4) 23.2 (±4.7) 35.3 (±6.1) 40.3 (±6.5) 43.8 (±6.9) 44.9 (±6.9) 46.3 (±7.1) 47.8 (±7.3) 49.1 (±7.6)
18-64 yrs 618 § § 6.0 (±2.5) 20.5 (±5.5) 33.0 (±6.9) 37.8 (±7.4) 41.2 (±8.0) 41.2 (±8.0) 42.6 (±8.2) 42.6 (±8.2) 42.6 (±8.2)
18-64 yrs with high

risk conditions

158 § § § 21.0 (±9.0) 32.1 (±12.5)|| 44.9 (±16.1)|| 54.9 (±17.6)|| 54.9 (±17.6)|| 55.2 (±17.6)|| 55.2 (±17.6)|| 55.2 (±17.6)||
18-49 yrs 360 § § § 17.3 (±6.5) 30.4 (±8.4) 35.9 (±9.2) 40.1 (±10.0) 40.1 (±10.0) 40.5 (±10.0) 40.5 (±10.0) 40.5 (±10.0)
18-49 yrs with high risk conditions 51 0.0 (±0.0) § § § § § 55.9 (±26.9)|| 55.9 (±26.9)|| 55.9 (±26.9)|| 55.9 (±26.9)|| 55.9 (±26.9)||
50-64 yrs 258 § § 8.3 (±4.7) 29.7 (±9.2) 40.4 (±10.4)|| 43.0 (±11.2)|| 43.3 (±11.2)|| 43.3 (±11.2)|| 47.6 (±13.1)|| 47.6 (±13.1)|| 47.6 (±13.1)||
65+ yrs 281 0.0 (±0.0) § 16.4 (±5.5) 36.9 (±7.6) 47.3 (±8.4) 53.4 (±8.8) 57.3 (±9.2) 62.6 (±9.6) 64.1 (±9.8) 70.4 (±10.4)|| 87.8 (±20.6)||

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Pennsylvania-Rest of State**, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,940 § 3.2 (±1.2) 15.4 (±2.6) 37.4 (±3.9) 50.2 (±4.4) 55.0 (±4.6) 57.5 (±4.6) 59.4 (±4.7) 60.9 (±5.0) 61.4 (±5.1) 61.5 (±5.1)
6 mos-4 yrs 865 § 5.0 (±2.5) 22.2 (±6.5) 45.3 (±7.3) 58.3 (±7.2) 62.4 (±7.2) 67.4 (±7.5) 68.4 (±7.5) 70.3 (±7.8) 72.8 (±8.4) 72.9 (±8.4)
5-12 yrs 1,408 § 3.1 (±1.5) 15.8 (±3.4) 39.0 (±5.0) 52.7 (±5.3) 57.0 (±5.3) 59.6 (±5.4) 62.6 (±5.6) 64.7 (±6.1) 64.7 (±6.1) 64.7 (±6.1)
13-17 yrs 667 § § 9.0 (±4.4) 28.3 (±7.9) 39.3 (±10.2)|| 45.6 (±11.0)|| 46.0 (±11.0)|| 46.3 (±11.0)|| 46.4 (±11.0)|| 46.4 (±11.0)|| 46.4 (±11.0)||
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs with high risk conditions —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs with high risk conditions —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Texas-Bexar County, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,156 1.5 (±0.8) 9.4 (±3.2) 19.5 (±3.4) 35.5 (±3.8) 48.7 (±4.3) 54.1 (±4.3) 58.7 (±4.3) 60.8 (±4.3) 61.7 (±4.3) 61.9 (±4.3) 62.6 (±4.3)
6 mos-4 yrs 630 § 9.6 (±3.4) 19.8 (±4.8) 40.2 (±6.5) 51.6 (±7.5) 57.3 (±8.2) 61.9 (±8.4) 65.4 (±8.5) 67.2 (±8.7) 67.4 (±8.7) 70.1 (±9.3)
5-12 yrs 951 § 11.2 (±6.4) 21.3 (±6.3) 36.6 (±6.3) 53.8 (±6.7) 58.9 (±6.4) 63.3 (±6.1) 65.7 (±6.0) 66.8 (±5.9) 67.0 (±5.9) 67.0 (±5.9)
13-17 yrs 575 § 6.4 (±2.5) 16.4 (±4.2) 29.8 (±5.8) 38.2 (±6.4) 43.9 (±7.1) 49.0 (±7.2) 49.3 (±7.2) 49.3 (±7.2) 49.3 (±7.2) 49.3 (±7.2)
Adults
18+ yrs 719 § § 8.8 (±2.9) 31.6 (±5.5) 42.3 (±6.1) 45.9 (±6.3) 51.2 (±6.7) 52.1 (±6.7) 53.2 (±6.9) 54.8 (±7.4) 54.8 (±7.4)
18-64 yrs 477 § § 6.8 (±3.3) 27.4 (±6.7) 37.3 (±7.4) 40.4 (±7.6) 45.6 (±8.0) 45.6 (±8.0) 47.0 (±8.2) 49.1 (±9.0) 49.1 (±9.0)
18-64 yrs with high risk conditions 119 0.0 (±0.0) § § 32.5 (±15.1)|| 43.4 (±15.7)|| 47.3 (±15.7)|| 51.4 (±16.1)|| 51.4 (±16.1)|| 51.4 (±16.1)|| 56.9 (±18.2)|| 56.9 (±18.2)||
18-49 yrs 292 § § 6.8 (±3.9) 26.1 (±8.6) 34.3 (±9.4) 36.4 (±9.4) 40.9 (±10.0) 40.9 (±10.0) 40.9 (±10.0) 43.6 (±11.0)|| 43.6 (±11.0)||
18-49 yrs with high risk conditions 46 0.0 (±0.0) § § § § 40.9 (±23.3)|| 40.9 (±23.3)|| 40.9 (±23.3)|| 40.9 (±23.3)|| 48.5 (±25.7)|| 48.5 (±25.7)||
50-64 yrs 185 0.0 (±0.0) § § 30.9 (±12.0)|| 44.8 (±12.9)|| 50.4 (±13.1)|| 57.1 (±13.5)|| 57.1 (±13.5)|| 61.3 (±14.1)|| 61.3 (±14.1)|| 61.3 (±14.1)||
65+ yrs 242 0.0 (±0.0) § 16.4 (±6.9) 46.9 (±9.2) 60.0 (±9.4) 65.9 (±9.4) 70.9 (±9.6) 74.9 (±9.6) 74.9 (±9.6) 74.9 (±9.6) 74.9 (±9.6)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Texas-City of Houston, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 1,899 2.8 (±1.0) 8.8 (±2.1) 19.2 (±2.8) 41.7 (±3.7) 51.4 (±3.9) 56.2 (±3.9) 59.4 (±4.0) 62.7 (±4.3) 64.2 (±4.4) 64.9 (±4.5) 65.8 (±4.5)
6 mos-4 yrs 557 4.2 (±2.2) 12.0 (±4.2) 25.2 (±5.9) 48.9 (±6.6) 60.0 (±6.6) 66.6 (±6.4) 69.3 (±6.4) 72.0 (±6.6) 73.3 (±6.8) 76.4 (±7.7) 79.0 (±7.6)
5-12 yrs 872 § 7.3 (±3.0) 17.1 (±3.9) 41.2 (±5.6) 50.3 (±5.8) 54.5 (±5.9) 57.5 (±6.0) 62.4 (±6.6) 64.0 (±6.7) 64.1 (±6.7) 64.9 (±6.8)
13-17 yrs 470 § 8.3 (±4.2) 17.0 (±5.0) 35.4 (±6.6) 44.9 (±7.1) 49.1 (±7.3) 52.9 (±7.5) 54.0 (±7.5) 55.5 (±7.8) 55.5 (±7.8) 55.5 (±7.8)
Adults
18+ yrs 1,867 § 1.4 (±0.8) 10.0 (±2.5) 28.3 (±4.1) 35.3 (±4.7) 39.0 (±4.9) 42.1 (±5.3) 43.0 (±5.3) 43.2 (±5.3) 43.6 (±5.3) 45.1 (±6.1)
18-64 yrs 1,279 § § 9.4 (±2.7) 25.8 (±4.7) 32.4 (±5.1) 35.6 (±5.5) 38.8 (±5.9) 39.6 (±6.1) 39.7 (±6.1) 40.0 (±6.1) 40.0 (±6.1)
18-64 yrs with high
risk conditions
267 0.0 (±0.0) 0.0 (±0.0) § 33.8 (±10.6)|| 37.3 (±10.8)|| 44.8 (±11.8)|| 51.4 (±16.1)|| 51.5 (±16.1)|| 51.5 (±16.1)|| 54.2 (±16.3)|| 54.2 (±16.3)||
18-49 yrs 752 0.0 (±0.0) § 9.8 (±3.7) 23.7 (±5.5) 30.5 (±6.1) 32.2 (±6.3) 34.0 (±6.5) 34.5 (±6.5) 34.7 (±6.5) 35.1 (±6.5) 35.1 (±6.5)
18-49 yrs with high risk conditions 93 0.0 (±0.0) 0.0 (±0.0) § 32.2 (±17.1)|| 35.2 (±17.4)|| 37.1 (±17.6)|| 37.8 (±17.6)|| 37.8 (±17.6)|| 37.8 (±17.6)|| 42.4 (±20.0)|| 42.4 (±20.0)||
50-64 yrs 527 § § 8.3 (±3.9) 30.6 (±8.2) 36.8 (±9.4) 43.2 (±10.0) 49.4 (±12.2)|| 50.6 (±12.2)|| 50.6 (±12.2)|| 50.6 (±12.2)|| 50.6 (±12.2)||
65+ yrs 588 § § 13.5 (±5.5) 42.2 (±8.8) 51.8 (±9.2) 58.2 (±9.6) 60.4 (±9.6) 62.0 (±9.8) 62.3 (±9.8) 63.1 (±10.0) 70.0 (±13.9)||

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example,
Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Texas-Rest of State**, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 8,072 2.3 (±1.0) 8.0 (±1.6) 19.4 (±2.4) 40.2 (±3.1) 52.2 (±3.3) 58.2 (±3.4) 61.1 (±3.5) 62.4 (±3.5) 63.0 (±3.5) 63.9 (±3.5) 64.4 (±3.5)
6 mos-4 yrs 2,211 2.1 (±0.8) 7.9 (±2.1) 26.2 (±5.4) 46.9 (±5.4) 61.2 (±4.8) 66.7 (±4.5) 70.3 (±4.3) 72.3 (±4.1) 74.2 (±4.1) 74.9 (±4.1) 75.8 (±4.1)
5-12 yrs 3,618 § 8.1 (±2.3) 19.1 (±3.3) 42.6 (±4.1) 54.4 (±4.2) 60.0 (±4.2) 62.8 (±4.2) 64.1 (±4.2) 64.5 (±4.2) 65.8 (±4.3) 66.3 (±4.3)
13-17 yrs 2,243 § 7.9 (±3.0) 15.1 (±3.6) 31.4 (±5.4) 42.4 (±6.4) 49.4 (±6.7) 51.9 (±6.8) 52.8 (±6.8) 52.9 (±6.8) 53.2 (±6.8) 53.5 (±6.8)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs with high
risk conditions
—** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs with high risk conditions —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Guam, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,307 § 26.9 (±6.8) 33.1 (±6.4) 41.6 (±6.0) 47.2 (±5.8) 51.3 (±6.3) 54.5 (±6.1) 56.5 (±5.9) 58.4 (±5.8) 59.8 (±5.7) 61.0 (±5.5)
6 mos-4 yrs 560 § 21.7 (±10.1)|| 32.8 (±8.7) 43.2 (±7.6) 49.4 (±7.3) 60.4 (±13.2)|| 64.0 (±12.3)|| 69.3 (±11.0)|| 71.4 (±10.5)|| 73.1 (±10.1)|| 75.2 (±9.7)
5-12 yrs 1,082 § 34.4 (±11.4)|| 39.3 (±10.8)|| 46.0 (±10.0) 53.4 (±9.1) 55.3 (±8.8) 58.3 (±8.4) 59.1 (±8.3) 61.1 (±8.1) 62.8 (±7.9) 63.9 (±7.7)
13-17 yrs 665 § 17.7 (±6.5) 22.7 (±6.8) 32.9 (±7.9) 34.7 (±7.9) 37.5 (±8.1) 40.7 (±8.4) 42.4 (±8.4) 43.8 (±8.5) 44.3 (±8.4) 45.1 (±8.4)
Adults
18+ yrs 2,018 1.1 (±0.6) 2.6 (±0.8) 6.9 (±1.2) 13.3 (±1.8) 19.0 (±2.2) 22.2 (±2.2) 25.5 (±2.5) 29.5 (±2.7) 32.3 (±3.1) 33.5 (±3.3) 35.3 (±3.9)
18-64 yrs 1,780 § 2.7 (±0.8) 6.6 (±1.4) 12.3 (±1.8) 17.0 (±2.2) 20.0 (±2.4) 23.6 (±2.5) 27.7 (±2.9) 30.3 (±3.3) 31.7 (±3.5) 33.5 (±4.3)
18-64 yrs with high
risk conditions
331 § § 6.3 (±3.1) 14.3 (±4.7) 18.2 (±5.1) 23.2 (±5.7) 24.9 (±5.9) 33.6 (±7.8) 40.6 (±9.4) 41.9 (±9.6) 51.7 (±14.5)||
18-49 yrs 1,244 § 3.0 (±1.0) 7.5 (±1.6) 13.1 (±2.2) 17.1 (±2.5) 19.6 (±2.7) 24.1 (±3.1) 27.0 (±3.5) 29.4 (±3.7) 30.6 (±3.9) 30.6 (±3.9)
18-49 yrs with high risk conditions 167 § § § 13.9 (±6.3) 15.9 (±6.7) 18.0 (±7.1) 21.0 (±7.8) 22.6 (±8.2) 30.8 (±11.0)|| 33.2 (±11.8)|| 33.2 (±11.8)||
50-64 yrs 536 § § 4.0 (±1.8) 10.2 (±3.1) 16.9 (±3.9) 20.9 (±4.3) 22.1 (±4.5) 29.7 (±5.7) 32.7 (±6.7) 34.5 (±7.1) 40.7 (±10.2)||
65+ yrs 238 § § 9.7 (±4.5) 21.1 (±6.3) 36.0 (±7.6) 40.6 (±8.0) 41.9 (±8.0) 44.7 (±8.6) 49.2 (±9.6) 49.2 (±9.6) 49.2 (±9.6)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, Puerto Rico, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,397 6.6 (±3.8) 14.5 (±3.9) 18.6 (±3.9) 23.9 (±4.0) 29.4 (±4.0) 30.5 (±4.0) 31.9 (±4.0) 33.7 (±4.0) 35.2 (±4.0) 36.0 (±4.0) 36.7 (±4.1)
6 mos-4 yrs 607 § 9.8 (±3.3) 16.0 (±4.0) 22.5 (±5.0) 32.6 (±7.3) 35.1 (±7.3) 37.9 (±7.2) 40.9 (±7.3) 43.1 (±7.4) 43.4 (±7.4) 46.0 (±7.7)
5-12 yrs 1,240 6.1 (±3.5) 15.0 (±4.4) 19.3 (±4.5) 23.5 (±4.6) 28.1 (±4.8) 28.8 (±4.8) 29.8 (±4.8) 30.8 (±4.8) 33.0 (±4.9) 34.4 (±5.0) 34.9 (±5.0)
13-17 yrs 550 § § 19.3 (±10.4)|| 25.5 (±10.2)|| 29.2 (±9.9) 30.1 (±9.9) 30.9 (±9.8) 33.3 (±9.9) 33.5 (±9.9) 33.5 (±9.9) 33.5 (±9.9)
Adults
18+ yrs 3,687 § 1.2 (±0.4) 3.2 (±0.8) 9.3 (±1.2) 13.9 (±1.6) 15.5 (±1.8) 18.5 (±2.0) 20.7 (±2.2) 24.2 (±2.7) 24.7 (±2.9) 24.7 (±2.9)
18-64 yrs 2,340 0.7 (±0.4) 1.2 (±0.6) 2.5 (±0.8) 7.0 (±1.4) 10.7 (±1.8) 11.9 (±1.8) 14.3 (±2.2) 16.5 (±2.4) 19.2 (±2.9) 19.2 (±2.9) 19.2 (±2.9)
18-64 yrs with high
risk conditions
721 § § 2.2 (±1.2) 5.5 (±2.2) 10.1 (±3.1) 12.1 (±3.5) 15.9 (±4.5) 17.6 (±4.7) 21.7 (±6.1) 21.7 (±6.1) 21.7 (±6.1)
18-49 yrs 1,341 § § 2.4 (±1.0) 6.5 (±1.6) 9.8 (±2.2) 10.6 (±2.2) 12.8 (±2.5) 15.3 (±2.9) 18.2 (±3.9) 18.2 (±3.9) 18.2 (±3.9)
18-49 yrs with high risk conditions 292 § § § § § § 11.4 (±6.5) 13.8 (±7.3) 18.7 (±9.8) 18.7 (±9.8) 18.7 (±9.8)
50-64 yrs 999 § § 2.6 (±1.2) 8.2 (±2.2) 12.8 (±2.7) 14.7 (±3.1) 17.7 (±3.7) 19.3 (±3.9) 21.6 (±4.7) 21.6 (±4.7) 21.6 (±4.7)
65+ yrs 1,347 § 1.1 (±0.6) 6.2 (±1.6) 18.6 (±2.9) 26.4 (±3.5) 29.6 (±3.9) 35.1 (±4.5) 37.5 (±4.9) 43.7 (±6.5) 51.0 (±14.7)|| 51.0 (±14.7)||

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years and adults 18 years and older, U.S. Virgin Islands, National Immunization Survey-Flu (NIS-Flu) and Behavioral Risk Factor Surveillance System (BRFSS), 2014-15 influenza season

July August September October November December January February March April May
Selected groups Sample Size % 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Children
6 mos-17 yrs 2,268 4.8 (±2.2) 12.6 (±3.4) 18.9 (±3.9) 24.0 (±4.0) 29.3 (±4.0) 33.2 (±4.0) 36.0 (±4.0) 37.1 (±3.9) 39.1 (±4.0) 40.2 (±4.0) 40.6 (±4.0)
6 mos-4 yrs 593 § 8.4 (±3.5) 18.3 (±5.0) 24.2 (±5.4) 33.2 (±6.2) 40.4 (±6.6) 43.9 (±6.6) 46.0 (±6.7) 47.6 (±6.9) 47.6 (±6.9) 48.1 (±6.9)
5-12 yrs 1,199 § 14.2 (±5.3) 21.0 (±5.5) 25.6 (±5.5) 30.9 (±5.4) 33.9 (±5.3) 36.1 (±5.3) 36.7 (±5.2) 38.9 (±5.2) 41.3 (±5.3) 42.0 (±5.4)
13-17 yrs 476 § 13.4 (±7.3) 16.4 (±7.4) 21.8 (±7.7) 24.3 (±7.7) 27.0 (±7.7) 30.2 (±7.7) 31.1 (±7.7) 33.2 (±7.8) 33.2 (±7.8) 33.2 (±7.8)
Adults
18+ yrs †† †† †† †† †† †† †† †† †† †† ††
18-64 yrs †† †† †† †† †† †† †† †† †† †† ††
18-64 yrs with high
risk conditions
†† †† †† †† †† †† †† †† †† †† ††
18-49 yrs †† †† †† †† †† †† †† †† †† †† ††
18-49 yrs with high risk conditions †† †† †† †† †† †† †† †† †† †† ††
50-64 yrs †† †† †† †† †† †† †† †† †† †† ††
65+ yrs †† †† †† †† †† †† †† †† †† †† ††

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2014 through May 2015. Coverage estimates for children living in the U.S. Virgin Islands and Puerto Rico include persons interviewed January through June 2015, and for children living in Guam include persons interviewed April through June 2015, whereas estimates for adults living in Puerto Rico include persons interviewed September 2014 through May 2015, and estimates for adults living in Guam include persons interviewed September 2014 through June 2015. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2014 through June 2015.

The definitions for the City of Chicago and the City of Houston differ for children (NIS-Flu) and adults (BRFSS). The City of Chicago estimates for children include only those residing in the city limits of Chicago while the estimates for adults include those residing in Cook County which includes the city of Chicago and other municipalities. The City of Houston estimates for children include only those residing in the city limits of Houston while the estimates for adults include those residing in any of the following Texas counties: Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller. The definition of City of New York is based upon county of residence and is the same for both surveys.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population. For more information on imputation and statistical methods see https://www.cdc.gov/flu/fluvaxview/coverage-1415estimates.htm#data.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Selected high-risk conditions includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

** “Rest of State” refers to the population of a state that does not reside in an area in which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago. Rest of State estimates are available for children (NIS-Flu) but not adults (BRFSS).

†† Data were not collected by the BRFSS in the U.S. Virgin Islands.

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