Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

2015-16 Influenza Season Vaccination Coverage Estimates for Local Areas and Territories

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.

View in Excel [83 KB]

Cumulative monthly 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), 2015-16 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 1,265 § 7.4 (±2.1) 19.9 (±3.3) 38.0 (±4.1) 47.7 (±4.3) 53.3 (±4.5) 57.0 (±4.7) 59.5 (±5.0) 60.9 (±5.3) 62.9 (±5.7) 62.9 (±5.7)
6 mos-4 yrs 419 § 7.9 (±3.2) 22.3 (±5.6) 41.6 (±7.2) 53.7 (±7.8) 60.6 (±8.3) 63.9 (±8.7) 65.2 (±8.9) 67.2 (±9.6) 69.8 (±10.6)|| 69.8 (±10.6)||
5-12 yrs 497 § 8.0 (±3.6) 20.3 (±5.4) 36.9 (±6.3) 45.7 (±6.5) 51.2 (±6.7) 56.6 (±7.1) 60.4 (±7.6) 61.5 (±7.8) 63.1 (±8.1) 63.1 (±8.1)
13-17 yrs 349 § 5.7 (±3.3) 15.8 (±5.2) 35.8 (±7.3) 43.9 (±7.5) 47.5 (±7.7) 47.9 (±7.7) 49.4 (±8.0) 49.4 (±8.0) 49.4 (±8.0) 49.4 (±8.0)
Adults
18+ yrs 1,467 § 1.9 (±1.0) 7.3 (±1.6) 24.1 (±2.7) 33.6 (±3.3) 36.3 (±3.3) 39.7 (±3.5) 42.4 (±3.7) 42.5 (±3.7) 42.5 (±3.7) 42.7 (±3.7)
18-64 yrs 991 § 2.1 (±1.2) 6.4 (±1.8) 20.9 (±3.1) 29.5 (±3.7) 32.1 (±3.9) 35.4 (±4.1) 38.0 (±4.3) 38.0 (±4.3) 38.0 (±4.3) 38.0 (±4.3)
18-64 yrs at high risk 235 0.0 (±0.0) § 7.9 (±3.9) 28.2 (±7.8) 34.1 (±8.0) 38.4 (±8.4) 45.0 (±9.0) 49.0 (±9.2) 49.0 (±9.2) 49.0 (±9.2) 49.0 (±9.2)
18-64 yrs not at high risk 750 § § 6.0 (±2.2) 18.7 (±3.3) 28.0 (±4.1) 30.2 (±4.3) 32.4 (±4.7) 34.4 (±4.9) 34.4 (±4.9) 34.4 (±4.9) 34.4 (±4.9)
18-49 yrs 600 § § 7.2 (±2.5) 20.6 (±4.1) 27.8 (±4.7) 30.6 (±4.9) 33.4 (±5.3) 35.5 (±5.5) 35.5 (±5.5) 35.5 (±5.5) 35.5 (±5.5)
18-49 yrs at high risk 98 0.0 (±0.0) § § 31.3 (±12.5)|| 37.3 (±12.9)|| 42.2 (±13.1)|| 45.3 (±13.3)|| 47.9 (±13.7)|| 47.9 (±13.7)|| 47.9 (±13.7)|| 47.9 (±13.7)||
18-49 yrs not at high risk 499 § § 7.5 (±2.7) 18.2 (±4.1) 25.6 (±4.9) 28.0 (±5.1) 30.7 (±5.7) 32.7 (±5.9) 32.7 (±5.9) 32.7 (±5.9) 32.7 (±5.9)
50-64 yrs 391 § § 4.6 (±2.2) 21.5 (±4.9) 33.0 (±6.3) 35.2 (±6.3) 39.6 (±6.9) 42.9 (±7.3) 42.9 (±7.3) 42.9 (±7.3) 42.9 (±7.3)
65+ yrs 476 § § 11.3 (±3.3) 38.3 (±5.5) 52.2 (±5.9) 55.3 (±5.9) 59.4 (±6.3) 62.9 (±6.3) 63.3 (±6.5) 63.3 (±6.5) 64.5 (±6.7)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 3,122 § 6.6 (±1.5) 15.1 (±1.9) 32.1 (±2.4) 43.4 (±2.6) 48.2 (±2.7) 49.8 (±2.7) 50.9 (±2.8) 52.8 (±3.2) 53.0 (±3.2) 53.5 (±3.3)
6 mos-4 yrs 928 § 9.4 (±4.0) 17.9 (±4.3) 38.3 (±4.7) 49.0 (±4.8) 55.9 (±4.9) 58.2 (±4.9) 60.1 (±5.1) 63.9 (±7.0) 64.6 (±7.0) 64.6 (±7.0)
5-12 yrs 1,335 § 7.0 (±1.9) 17.1 (±2.6) 34.1 (±3.4) 45.5 (±3.7) 50.5 (±3.8) 52.1 (±3.9) 52.7 (±3.9) 54.9 (±4.5) 55.1 (±4.5) 55.1 (±4.5)
13-17 yrs 859 § 4.1 (±2.1) 9.8 (±2.7) 24.2 (±4.4) 35.8 (±4.9) 38.4 (±5.1) 39.2 (±5.1) 40.5 (±5.3) 40.5 (±5.3) 40.5 (±5.3) 42.0 (±5.8)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 2,424 2.4 (±0.9) 8.5 (±1.7) 21.1 (±2.4) 40.3 (±2.9) 53.2 (±3.0) 59.3 (±3.1) 66.9 (±3.2) 68.9 (±3.3) 70.3 (±3.3) 70.5 (±3.3) 70.6 (±3.3)
6 mos-4 yrs 815 § 11.6 (±3.8) 28.2 (±4.7) 46.1 (±5.1) 62.6 (±5.0) 70.4 (±4.8) 75.3 (±4.8) 79.3 (±4.9) 80.1 (±4.9) 80.1 (±4.9) 80.1 (±4.9)
5-12 yrs 1,012 2.5 (±1.4) 7.4 (±2.4) 18.8 (±3.4) 40.4 (±4.3) 52.2 (±4.4) 56.8 (±4.5) 68.0 (±4.8) 68.9 (±4.8) 70.9 (±5.0) 71.3 (±5.0) 71.3 (±5.0)
13-17 yrs 597 § 7.5 (±3.1) 18.2 (±4.3) 34.2 (±5.5) 45.4 (±5.8) 52.1 (±6.0) 55.7 (±6.1) 57.5 (±6.2) 58.5 (±6.3) 58.5 (±6.3) 59.1 (±6.4)
Adults
18+ yrs 2,879 0.4 (±0.2) 1.5 (±0.6) 8.0 (±1.4) 24.9 (±2.4) 33.0 (±2.5) 37.1 (±2.7) 40.3 (±2.7) 42.1 (±2.9) 43.5 (±2.9) 44.5 (±3.1) 44.5 (±3.1)
18-64 yrs 2,194 § 1.4 (±0.6) 7.0 (±1.6) 21.7 (±2.5) 29.1 (±2.9) 32.9 (±2.9) 35.9 (±3.1) 37.0 (±3.1) 38.1 (±3.3) 39.3 (±3.5) 39.3 (±3.5)
18-64 yrs at high risk 491 § § 10.5 (±3.9) 30.2 (±5.9) 41.5 (±6.3) 45.3 (±6.5) 52.5 (±7.3) 54.6 (±7.3) 56.2 (±7.4) 59.6 (±8.4) 59.6 (±8.4)
18-64 yrs not at high risk 1,675 § § 6.1 (±1.8) 19.5 (±2.9) 25.9 (±3.1) 29.9 (±3.3) 31.8 (±3.5) 32.7 (±3.5) 33.7 (±3.7) 34.4 (±3.9) 34.4 (±3.9)
18-49 yrs 1,458 § 1.4 (±0.8) 6.9 (±2.0) 18.2 (±2.9) 25.0 (±3.3) 28.1 (±3.5) 31.5 (±3.9) 32.4 (±3.9) 33.6 (±4.1) 34.8 (±4.3) 34.8 (±4.3)
18-49 yrs at high risk 231 § § § 22.9 (±8.0) 31.8 (±9.0) 36.1 (±9.6) 46.7 (±11.4)|| 47.4 (±11.4)|| 48.2 (±11.4)|| 53.8 (±13.1)|| 53.8 (±13.1)||
18-49 yrs not at high risk 1,205 § § 6.5 (±2.2) 17.6 (±3.3) 24.0 (±3.7) 27.0 (±3.9) 29.3 (±4.1) 30.3 (±4.3) 31.6 (±4.3) 31.9 (±4.5) 31.9 (±4.5)
50-64 yrs 736 § § 7.3 (±2.4) 30.3 (±4.7) 39.2 (±5.1) 44.9 (±5.3) 46.7 (±5.5) 48.2 (±5.5) 49.1 (±5.5) 50.4 (±6.1) 50.4 (±6.1)
65+ yrs 685 § § 12.6 (±2.9) 39.7 (±4.9) 51.0 (±5.5) 56.6 (±5.5) 61.1 (±5.7) 65.7 (±5.9) 68.5 (±5.9) 68.5 (±5.9) 68.5 (±5.9)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 2,641 1.4 (±0.7) 4.6 (±1.1) 16.8 (±2.1) 36.2 (±2.8) 49.0 (±3.0) 53.4 (±3.1) 57.5 (±3.2) 60.6 (±3.3) 61.7 (±3.4) 61.9 (±3.4) 62.0 (±3.4)
6 mos-4 yrs 917 § 5.0 (±1.7) 21.0 (±4.0) 42.2 (±4.8) 57.1 (±5.0) 63.9 (±5.0) 66.7 (±5.1) 72.1 (±5.4) 72.6 (±5.4) 72.6 (±5.4) 72.6 (±5.4)
5-12 yrs 1,119 § 5.3 (±1.8) 15.5 (±3.0) 37.0 (±4.1) 50.5 (±4.4) 54.9 (±4.5) 60.3 (±4.7) 62.0 (±4.7) 64.3 (±4.9) 64.6 (±4.9) 64.6 (±4.9)
13-17 yrs 605 § 3.5 (±1.8) 15.3 (±4.0) 30.3 (±5.1) 40.2 (±5.7) 42.9 (±6.0) 45.9 (±6.2) 49.7 (±6.6) 49.7 (±6.6) 49.7 (±6.6) 49.9 (±6.6)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 2,076 § 8.2 (±2.4) 21.5 (±3.0) 41.6 (±3.3) 55.1 (±3.3) 62.4 (±3.3) 68.6 (±3.3) 70.9 (±3.3) 71.5 (±3.3) 75.1 (±4.3) 75.3 (±4.3)
6 mos-4 yrs 673 2.4 (±1.3) 10.5 (±3.7) 24.2 (±4.8) 50.0 (±5.7) 64.0 (±5.6) 70.3 (±5.5) 77.9 (±4.9) 81.9 (±4.7) 81.9 (±4.7) 87.4 (±6.7) 87.4 (±6.7)
5-12 yrs 841 § 7.6 (±2.4) 21.0 (±3.9) 37.5 (±4.6) 50.6 (±4.8) 58.9 (±5.0) 66.8 (±5.1) 68.6 (±5.1) 69.7 (±5.1) 72.8 (±6.6) 72.8 (±6.6)
13-17 yrs 562 § § 19.8 (±6.4) 40.4 (±6.4) 54.0 (±6.2) 60.6 (±6.0) 62.8 (±6.0) 63.8 (±6.0) 64.2 (±6.0) 66.4 (±6.4) 67.0 (±6.5)
Adults
18+ yrs 799 § § 8.3 (±2.9) 24.6 (±5.1) 35.6 (±6.1) 38.6 (±6.5) 40.9 (±6.5) 43.6 (±6.9) 43.7 (±6.9) 43.9 (±6.9) 43.9 (±6.9)
18-64 yrs 596 § § 7.1 (±3.1) 21.9 (±5.5) 32.5 (±7.1) 35.5 (±7.3) 36.7 (±7.4) 38.9 (±7.8) 39.0 (±7.8) 39.3 (±7.8) 39.3 (±7.8)
18-64 yrs at high risk 142 § § § 36.9 (±13.7)|| 53.1 (±15.3)|| 60.3 (±15.5)|| 61.3 (±15.5)|| 64.0 (±15.9)|| 64.1 (±15.9)|| 65.0 (±16.3)|| 65.0 (±16.3)||
18-64 yrs not at high risk 449 § § 6.0 (±3.3) 17.9 (±5.9) 26.7 (±7.4) 28.5 (±7.6) 29.6 (±7.6) 31.7 (±8.4) 31.7 (±8.4) 31.7 (±8.4) 31.7 (±8.4)
18-49 yrs 377 § § 7.2 (±4.1) 20.4 (±6.9) 31.1 (±8.8) 32.8 (±9.0) 33.3 (±9.2) 35.5 (±9.8) 35.5 (±9.8) 35.9 (±9.8) 35.9 (±9.8)
18-49 yrs at high risk 68 § § § 44.3 (±22.3)|| 62.3 (±23.5)|| 62.3 (±23.5)|| 63.0 (±23.5)|| 63.0 (±23.5)|| 63.0 (±23.5)|| 64.4 (±24.3)|| 64.4 (±24.3)||
18-49 yrs not at high risk 306 § § § 15.4 (±6.3) 24.2 (±8.8) 26.3 (±9.0) 26.8 (±9.0) 29.6 (±10.2)|| 29.6 (±10.2)|| 29.6 (±10.2)|| 29.6 (±10.2)||
50-64 yrs 219 § § § 25.2 (±9.6) 35.5 (±11.2)|| 41.6 (±12.0)|| 44.1 (±11.8)|| 46.5 (±12.0)|| 46.7 (±12.0)|| 46.7 (±12.0)|| 46.7 (±12.0)||
65+ yrs 203 0.0 (±0.0) 0.0 (±0.0) 13.8 (±7.1) 37.2 (±9.4) 50.0 (±9.6) 52.5 (±9.6) 59.7 (±9.4) 63.8 (±9.2) 64.0 (±9.2) 64.0 (±9.2) 64.0 (±9.2)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 2,796 § 3.5 (±1.1) 12.1 (±1.9) 39.7 (±4.1) 49.3 (±4.2) 54.2 (±4.3) 55.8 (±4.3) 57.2 (±4.4) 58.1 (±4.4) 58.4 (±4.4) 58.5 (±4.4)
6 mos-4 yrs 823 § 3.6 (±1.8) 15.6 (±3.9) 45.0 (±7.5) 57.5 (±7.3) 62.8 (±7.2) 64.6 (±7.2) 68.0 (±7.3) 68.6 (±7.3) 70.3 (±7.8) 70.7 (±7.8)
5-12 yrs 1,199 § 3.1 (±1.4) 12.0 (±2.8) 40.6 (±5.3) 50.3 (±5.7) 56.5 (±5.8) 58.2 (±5.8) 59.5 (±5.9) 60.6 (±6.0) 60.6 (±6.0) 60.6 (±6.0)
13-17 yrs 774 § § 9.8 (±3.5) 34.3 (±8.3) 41.7 (±8.5) 44.4 (±8.5) 45.7 (±8.5) 45.8 (±8.5) 46.5 (±8.6) 46.5 (±8.6) 46.5 (±8.6)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 1,969 2.4 (±1.0) 8.1 (±1.7) 17.9 (±2.6) 36.7 (±3.3) 47.7 (±3.6) 51.8 (±3.7) 56.2 (±3.9) 59.0 (±4.0) 59.7 (±4.1) 59.7 (±4.1) 59.7 (±4.1)
6 mos-4 yrs 586 3.5 (±2.0) 10.3 (±3.6) 19.1 (±4.5) 40.0 (±6.0) 54.4 (±6.6) 58.2 (±6.8) 62.5 (±7.1) 66.4 (±7.4) 67.5 (±7.5) 67.5 (±7.5) 67.5 (±7.5)
5-12 yrs 836 § 8.8 (±2.8) 19.8 (±4.3) 38.5 (±5.1) 49.4 (±5.4) 53.9 (±5.6) 58.9 (±5.8) 61.9 (±6.0) 62.1 (±6.0) 62.1 (±6.0) 62.1 (±6.0)
13-17 yrs 547 § 5.2 (±2.1) 14.2 (±4.0) 30.9 (±5.5) 38.9 (±6.1) 42.9 (±6.5) 46.4 (±6.7) 47.5 (±6.8) 48.7 (±7.1) 48.7 (±7.1) 48.7 (±7.1)
Adults
18+ yrs 311 § § 9.3 (±3.7) 28.3 (±6.3) 37.2 (±6.9) 39.1 (±7.1) 41.6 (±7.3) 42.3 (±7.4) 42.3 (±7.4) 45.1 (±9.0) 47.4 (±9.6)
18-64 yrs 221 § § 8.4 (±4.3) 24.9 (±7.3) 33.6 (±8.0) 33.6 (±8.0) 36.1 (±8.4) 36.1 (±8.4) 36.1 (±8.4) 36.1 (±8.4) 36.1 (±8.4)
18-64 yrs at high risk 51 0.0 (±0.0) § § 31.7 (±16.5)|| 36.4 (±16.9)|| 36.4 (±16.9)|| 38.6 (±17.2)|| 38.6 (±17.2)|| 38.6 (±17.2)|| 38.6 (±17.2)|| 38.6 (±17.2)||
18-64 yrs not at high risk 166 § § § 22.4 (±7.6) 31.8 (±9.2) 31.8 (±9.2) 34.5 (±9.8) 34.5 (±9.8) 34.5 (±9.8) 34.5 (±9.8) 34.5 (±9.8)
18-49 yrs 130 0.0 (±0.0) § § 22.8 (±9.2) 33.4 (±10.6)|| 33.4 (±10.6)|| 34.9 (±11.0)|| 34.9 (±11.0)|| 34.9 (±11.0)|| 34.9 (±11.0)|| 34.9 (±11.0)||
18-49 yrs at high risk †† †† †† †† †† †† †† †† †† †† ††
18-49 yrs not at high risk 107 0.0 (±0.0) § § 19.4 (±9.0) 31.5 (±11.8)|| 31.5 (±11.8)|| 33.4 (±12.2)|| 33.4 (±12.2)|| 33.4 (±12.2)|| 33.4 (±12.2)|| 33.4 (±12.2)||
50-64 yrs 91 § § § 28.8 (±11.8)|| 33.8 (±12.3)|| 33.8 (±12.3)|| 38.5 (±13.5)|| 38.5 (±13.5)|| 38.5 (±13.5)|| 38.5 (±13.5)|| 38.5 (±13.5)||
65+ yrs 90 0.0 (±0.0) § 13.4 (±7.8) 42.0 (±12.2)|| 51.4 (±12.5)|| 59.8 (±12.7)|| 61.9 (±12.7)|| 64.7 (±12.9)|| 64.7 (±12.9)|| 73.3 (±17.1)|| 80.1 (±17.2)||

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 1,782 2.8 (±1.2) 10.7 (±2.5) 21.7 (±3.2) 38.6 (±3.6) 47.6 (±3.8) 52.9 (±3.8) 56.9 (±3.9) 60.2 (±4.1) 62.2 (±4.2) 62.9 (±4.3) 63.1 (±4.3)
6 mos-4 yrs 579 § 8.3 (±3.1) 22.1 (±5.2) 43.7 (±6.3) 55.4 (±6.3) 60.8 (±6.4) 67.4 (±6.4) 73.4 (±6.4) 75.9 (±6.5) 75.9 (±6.5) 75.9 (±6.5)
5-12 yrs 729 § 13.0 (±4.4) 24.7 (±5.3) 39.9 (±5.6) 48.6 (±5.7) 54.3 (±5.8) 57.7 (±5.9) 59.1 (±6.0) 61.2 (±6.2) 62.3 (±6.3) 62.7 (±6.4)
13-17 yrs 474 § 9.3 (±4.5) 16.2 (±5.1) 30.6 (±6.2) 36.9 (±6.6) 41.3 (±7.0) 43.3 (±7.1) 46.8 (±7.5) 48.2 (±7.8) 48.6 (±7.8) 48.6 (±7.8)
Adults
18+ yrs 1,772 § § 8.9 (±2.4) 27.0 (±5.3) 33.0 (±5.9) 34.5 (±5.9) 36.6 (±5.9) 38.9 (±5.9) 40.2 (±5.9) 40.9 (±5.9) 43.5 (±6.3)
18-64 yrs 1,165 0.0 (±0.0) § 7.9 (±2.7) 24.3 (±6.1) 30.6 (±6.5) 32.4 (±6.7) 34.3 (±6.7) 36.5 (±6.5) 38.1 (±6.7) 38.9 (±6.7) 41.8 (±7.3)
18-64 yrs at high risk 271 0.0 (±0.0) § § 35.7 (±14.9)|| 43.4 (±14.9)|| 45.2 (±14.9)|| 47.2 (±14.9)|| 51.1 (±14.7)|| 55.7 (±14.7)|| 57.1 (±14.7)|| 66.1 (±18.4)||
18-64 yrs not at high risk 879 0.0 (±0.0) § 7.0 (±2.7) 21.4 (±5.9) 27.3 (±7.3) 29.2 (±7.3) 31.1 (±7.3) 33.0 (±7.3) 34.2 (±7.3) 34.9 (±7.4) 37.2 (±7.8)
18-49 yrs 696 0.0 (±0.0) § 6.1 (±2.4) 26.8 (±7.3) 29.8 (±7.1) 32.4 (±7.1) 34.8 (±7.1) 37.3 (±7.1) 39.0 (±7.1) 39.9 (±7.1) 42.9 (±7.8)
18-49 yrs at high risk 101 0.0 (±0.0) 0.0 (±0.0) § 42.1 (±23.7)|| 44.1 (±23.3)|| 47.6 (±22.7)|| 50.8 (±22.0)|| 55.8 (±20.8)|| 63.7 (±19.2)|| 66.4 (±18.8)|| 78.7 (±21.0)||
18-49 yrs not at high risk 584 0.0 (±0.0) § 6.8 (±2.7) 24.4 (±7.3) 27.7 (±7.1) 30.1 (±7.1) 32.6 (±7.1) 34.7 (±7.1) 35.8 (±7.3) 36.6 (±7.3) 38.6 (±7.8)
50-64 yrs 469 0.1 (±0.0) § 11.6 (±6.7) 19.0 (±8.0) 32.0 (±13.9)|| 32.2 (±13.9)|| 32.4 (±13.9)|| 33.4 (±13.7)|| 34.4 (±13.9)|| 34.4 (±13.9)|| 37.3 (±14.7)||
65+ yrs 607 § § 14.5 (±6.1) 42.2 (±12.2)|| 46.1 (±12.5)|| 46.4 (±12.5)|| 49.2 (±13.1)|| 52.0 (±14.1)|| 52.3 (±14.3)|| 52.3 (±14.3)|| 52.3 (±14.3)||

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 8,374 § 9.2 (±2.7) 20.9 (±3.7) 38.7 (±4.0) 50.7 (±4.0) 54.7 (±3.9) 57.4 (±3.7) 59.5 (±3.6) 60.4 (±3.6) 61.9 (±3.7) 62.2 (±3.7)
6 mos-4 yrs 2,395 § 10.2 (±5.3) 30.2 (±7.4) 46.0 (±7.0) 56.7 (±6.4) 60.8 (±6.3) 64.6 (±6.1) 69.3 (±6.0) 69.9 (±6.0) 71.5 (±6.1) 71.7 (±6.1)
5-12 yrs 3,436 § 10.1 (±4.8) 18.6 (±4.9) 37.3 (±5.6) 52.6 (±6.4) 56.7 (±6.0) 59.0 (±5.8) 60.1 (±5.7) 61.1 (±5.6) 62.9 (±5.7) 63.2 (±5.7)
13-17 yrs 2,543 § 6.8 (±2.1) 16.0 (±4.9) 34.1 (±7.0) 41.1 (±6.7) 45.0 (±6.6) 47.1 (±6.5) 48.4 (±6.4) 49.6 (±6.3) 50.2 (±6.3) 50.5 (±6.3)
Adults
18+ yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-64 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs at high risk —** —** —** —** —** —** —** —** —** —** —**
18-49 yrs not at high risk —** —** —** —** —** —** —** —** —** —** —**
50-64 yrs —** —** —** —** —** —** —** —** —** —** —**
65+ yrs —** —** —** —** —** —** —** —** —** —** —**

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 2,562 7.8 (±1.7) 19.0 (±2.4) 27.6 (±2.7) 36.8 (±2.9) 43.7 (±3.0) 48.0 (±3.1) 51.7 (±3.1) 55.1 (±3.1) 58.0 (±3.1) 59.9 (±3.1) 61.0 (±3.0)
6 mos-4 yrs 573 § 12.0 (±3.4) 21.7 (±5.8) 34.2 (±6.3) 46.3 (±6.6) 51.9 (±6.8) 59.3 (±6.9) 67.2 (±6.8) 69.4 (±6.8) 71.2 (±6.6) 71.2 (±6.6)
5-12 yrs 1,305 11.1 (±3.1) 22.6 (±3.6) 31.6 (±3.9) 42.1 (±4.0) 46.8 (±4.0) 50.3 (±4.1) 54.1 (±4.0) 56.1 (±4.0) 60.0 (±4.0) 62.5 (±4.0) 64.1 (±3.9)
13-17 yrs 684 5.7 (±2.2) 18.0 (±4.4) 25.0 (±5.0) 29.4 (±5.2) 36.3 (±5.6) 40.8 (±5.8) 41.6 (±5.8) 43.9 (±5.8) 45.4 (±5.8) 46.5 (±5.8) 47.5 (±5.8)
Adults
18+ yrs 1,193 § 2.0 (±0.8) 5.2 (±1.4) 12.1 (±2.2) 18.1 (±2.5) 20.8 (±2.7) 25.1 (±3.1) 27.0 (±3.3) 27.9 (±3.3) 28.3 (±3.3) 28.3 (±3.3)
18-64 yrs 1,004 § 2.0 (±1.0) 4.8 (±1.4) 10.9 (±2.2) 16.7 (±2.7) 18.6 (±2.7) 22.7 (±3.1) 24.1 (±3.3) 24.7 (±3.5) 25.2 (±3.5) 25.2 (±3.5)
18-64 yrs at high risk 197 § § 7.9 (±3.9) 13.4 (±5.3) 20.4 (±6.3) 25.0 (±6.9) 25.9 (±7.1) 26.7 (±7.1) 26.7 (±7.1) 26.7 (±7.1) 26.7 (±7.1)
18-64 yrs not at high risk 796 § 1.8 (±1.0) 4.1 (±1.6) 10.4 (±2.5) 15.9 (±2.9) 17.2 (±3.1) 21.8 (±3.5) 23.3 (±3.9) 24.1 (±3.9) 24.7 (±4.1) 24.7 (±4.1)
18-49 yrs 655 § 1.9 (±1.0) 4.1 (±1.6) 10.4 (±2.7) 15.6 (±3.1) 17.0 (±3.3) 21.9 (±3.9) 23.5 (±4.1) 24.4 (±4.3) 25.0 (±4.3) 25.0 (±4.3)
18-49 yrs at high risk 89 § § § § 18.1 (±8.8) 20.2 (±9.2) 21.8 (±9.6) 21.8 (±9.6) 21.8 (±9.6) 21.8 (±9.6) 21.8 (±9.6)
18-49 yrs not at high risk 558 § § 3.8 (±1.8) 10.3 (±2.9) 15.2 (±3.3) 16.6 (±3.5) 21.7 (±4.3) 23.6 (±4.5) 24.6 (±4.7) 25.3 (±4.9) 25.3 (±4.9)
50-64 yrs 349 § § 6.8 (±2.9) 12.4 (±3.9) 19.9 (±4.9) 23.0 (±5.3) 24.8 (±5.5) 25.8 (±5.7) 25.8 (±5.7) 25.8 (±5.7) 25.8 (±5.7)
65+ yrs 189 § § 8.2 (±4.5) 22.9 (±6.9) 30.3 (±7.6) 39.5 (±8.6) 45.8 (±9.0) 51.8 (±9.4) 54.5 (±9.8) 54.5 (±9.8) 54.5 (±9.8)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 3,892 5.0 (±1.2) 12.8 (±1.7) 16.0 (±1.9) 22.1 (±2.1) 28.2 (±2.6) 30.1 (±2.6) 33.4 (±2.8) 36.9 (±3.0) 39.0 (±3.1) 40.6 (±3.1) 41.5 (±3.2)
6 mos-4 yrs 1,051 5.4 (±1.7) 15.0 (±3.1) 19.9 (±3.5) 30.3 (±4.5) 39.1 (±4.7) 43.7 (±4.9) 48.3 (±5.0) 54.2 (±5.3) 57.2 (±5.4) 58.1 (±5.4) 59.6 (±5.4)
5-12 yrs 2,229 6.1 (±2.0) 14.3 (±2.5) 17.3 (±2.6) 23.2 (±2.8) 27.3 (±3.0) 28.7 (±3.1) 33.2 (±3.6) 37.0 (±3.9) 38.2 (±3.9) 40.2 (±4.0) 40.3 (±4.0)
13-17 yrs 612 § 8.6 (±3.3) 11.1 (±3.6) 14.3 (±3.9) 21.9 (±6.1) 22.6 (±6.1) 23.0 (±6.1) 24.0 (±6.2) 26.9 (±6.8) 28.1 (±7.0) 30.2 (±7.2)
Adults
18+ yrs 3,128 0.4 (±0.2) 1.7 (±0.6) 4.4 (±1.0) 10.4 (±1.6) 14.5 (±1.8) 16.8 (±2.0) 20.4 (±2.4) 21.8 (±2.5) 21.8 (±2.5) 21.8 (±2.5) 21.8 (±2.5)
18-64 yrs 2,056 0.4 (±0.2) 1.9 (±0.8) 4.1 (±1.2) 8.9 (±1.8) 11.5 (±2.2) 13.1 (±2.4) 16.3 (±2.7) 17.3 (±2.9) 17.3 (±2.9) 17.3 (±2.9) 17.3 (±2.9)
18-64 yrs at high risk 617 § § 4.2 (±2.0) 10.9 (±3.3) 13.6 (±3.7) 15.7 (±4.1) 20.5 (±5.9) 21.9 (±6.1) 21.9 (±6.1) 21.9 (±6.1) 21.9 (±6.1)
18-64 yrs not at high risk 1,428 § § 4.1 (±1.4) 8.1 (±2.0) 10.7 (±2.5) 11.9 (±2.7) 14.6 (±3.1) 15.4 (±3.1) 15.4 (±3.1) 15.4 (±3.1) 15.4 (±3.1)
18-49 yrs 1,196 § § 3.6 (±1.4) 7.1 (±2.0) 9.7 (±2.5) 10.5 (±2.7) 14.4 (±3.5) 15.3 (±3.7) 15.3 (±3.7) 15.3 (±3.7) 15.3 (±3.7)
18-49 yrs at high risk 264 § § § 8.2 (±4.3) 10.4 (±4.7) 11.0 (±4.9) 17.4 (±8.8) 18.7 (±9.0) 18.7 (±9.0) 18.7 (±9.0) 18.7 (±9.0)
18-49 yrs not at high risk 926 § § 3.5 (±1.8) 6.8 (±2.4) 9.6 (±2.9) 10.4 (±3.1) 13.5 (±3.7) 14.3 (±3.9) 14.3 (±3.9) 14.3 (±3.9) 14.3 (±3.9)
50-64 yrs 860 § § 5.1 (±2.0) 12.8 (±3.1) 15.4 (±3.5) 18.8 (±4.1) 20.7 (±4.3) 21.8 (±4.5) 21.8 (±4.5) 21.8 (±4.5) 21.8 (±4.5)
65+ yrs 1,072 0.0 (±0.0) § 5.6 (±1.6) 15.7 (±2.9) 25.3 (±3.7) 30.3 (±4.1) 35.5 (±4.5) 39.3 (±4.9) 39.3 (±4.9) 39.3 (±4.9) 39.3 (±4.9)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

Cumulative monthly 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), 2015-16 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 2,986 3.4 (±0.8) 11.3 (±1.5) 16.9 (±1.9) 23.4 (±2.3) 28.5 (±2.5) 30.6 (±2.6) 32.7 (±2.7) 36.7 (±3.0) 38.1 (±3.1) 39.7 (±3.6) 39.8 (±3.6)
6 mos-4 yrs 815 5.1 (±2.1) 12.9 (±3.0) 18.8 (±3.6) 26.3 (±4.7) 34.3 (±5.1) 37.9 (±5.4) 42.2 (±5.6) 44.5 (±5.7) 48.3 (±6.4) 48.9 (±6.4) 49.3 (±6.5)
5-12 yrs 1,591 3.4 (±1.0) 13.5 (±2.3) 19.3 (±2.7) 25.8 (±3.0) 29.7 (±3.2) 31.9 (±3.3) 33.5 (±3.6) 39.1 (±4.1) 39.5 (±4.1) 42.3 (±5.4) 42.3 (±5.4)
13-17 yrs 580 § 7.0 (±2.5) 12.1 (±3.4) 17.4 (±4.2) 22.1 (±4.9) 22.7 (±4.9) 23.6 (±5.0) 26.4 (±5.5) 27.4 (±5.5) 27.9 (±5.6) 28.0 (±5.6)
Adults
18+ yrs 783 § § 4.7 (±2.2) 7.7 (±2.5) 10.2 (±2.7) 11.4 (±2.9) 14.2 (±3.1) 15.0 (±3.1) 15.3 (±3.1) 16.4 (±3.3) 17.5 (±3.9)
18-64 yrs 497 § § 4.5 (±2.5) 7.4 (±3.1) 9.8 (±3.3) 11.2 (±3.3) 13.2 (±3.5) 13.6 (±3.5) 13.6 (±3.5) 13.6 (±3.5) 15.1 (±4.5)
18-64 yrs at high risk 99 § § § § § § 20.2 (±10.4)|| 21.1 (±10.6)|| 21.1 (±10.6)|| 21.1 (±10.6)|| §
18-64 yrs not at high risk 390 § § § 7.1 (±3.3) 9.8 (±3.5) 10.8 (±3.7) 11.5 (±3.7) 11.8 (±3.7) 11.8 (±3.7) 11.8 (±3.7) 11.8 (±3.7)
18-49 yrs 228 § § § § 8.2 (±4.3) 9.1 (±4.3) 9.9 (±4.3) 9.9 (±4.3) 9.9 (±4.3) 9.9 (±4.3) 12.7 (±6.9)
18-49 yrs at high risk 40 0.0 (±0.0) 0.0 (±0.0) 0.0 (±0.0) § § § § § § § §
18-49 yrs not at high risk 185 § § § § 9.6 (±5.1) 9.9 (±5.1) 10.5 (±5.1) 10.5 (±5.1) 10.5 (±5.1) 10.5 (±5.1) 10.5 (±5.1)
50-64 yrs 269 § § § 8.9 (±4.9) 12.1 (±5.3) 14.1 (±5.5) 17.8 (±6.1) 18.9 (±6.1) 18.9 (±6.1) 18.9 (±6.1) 18.9 (±6.1)
65+ yrs 286 § § 5.3 (±2.9) 9.1 (±3.5) 12.0 (±3.7) 12.7 (±3.9) 18.6 (±5.3) 21.0 (±5.5) 22.3 (±5.7) 26.9 (±7.1) 26.9 (±7.1)

Abbreviation: CI = confidence interval half-width

* All coverage estimates are for persons who reported being vaccinated July 2015 through May 2016. Coverage estimates for children living in Guam include persons interviewed April through June 2016, and estimates for adults living in the U.S. Virgin Islands include persons interviewed February through June 2016. All other estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2015 through June 2016.

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 U.S. population. For more information on imputation and statistical methods see Flu Vaccination Coverage, United States, 2015-16 Influenza Season.

§ 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).

†† Estimates not reliable because sample size is <30.

Top of Page

TOP