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Progress in Global Measles Control, 2000–2010

Please note: An erratum has been published for this article. To view the erratum, please click here.

In 1980, before widespread global use of measles vaccine, an estimated 2.6 million measles deaths occurred worldwide (1). In 2001, to accelerate the reduction in measles cases achieved by vaccination, the World Health Organization (WHO) and the United Nations Children's Fund (UNICEF) developed a strategy to deliver 2 doses of measles-containing vaccine (MCV) to all children through routine services and supplementary immunization activities (SIAs) and improved disease surveillance (2). After implementation of this strategy, the estimated number of annual measles deaths worldwide decreased from 733,000 in 2000 to 164,000 in 2008 (3). In 2010, the World Health Assembly endorsed the following measles objectives for 2015: 1) raise routine coverage with the first dose of MCV (MCV1) for children aged 1 year to ≥90% nationally and ≥80% in every district or equivalent administrative unit, 2) reduce and maintain annual measles incidence at <5 cases per million, and 3) reduce measles mortality by ≥95% from the 2000 estimate (4). During 2000–2010, global MCV1 coverage increased from 72% to 85% with approximately 1 billion children vaccinated during measles SIAs. Reported measles cases decreased from 2000 to 2008, remained stable in 2009, and increased in 2010. By the end of 2010, 40% of countries still had not met the incidence target of <5 cases per million. Key challenges must be overcome to meet the 2015 objectives, including 1) declining political and financial commitments to measles control, 2) failure to reach uniform high coverage with 2 doses of MCV through routine services or SIAs, and 3) inadequate monitoring subnationally of coverage with the first and second dose of MCV to guide interventions to increase coverage.

Immunization Activities

WHO and UNICEF use annual data from administrative records and surveys reported by countries to estimate MCV1 coverage administered through routine immunization services to children aged 1 year. Countries annually report the number of districts with ≥80% MCV1 coverage (5). During 2000–2010, estimated global MCV1 coverage increased from 72% to 85%; by 2010, three of six WHO regions had >90% estimated MCV1 coverage (Table 1). In 2010, 20,651 (61%) of 33,966 districts worldwide achieved ≥80% MCV1 coverage; 58 (30%) countries, representing 9% of the global population, reached the target in every district. Of the estimated 19.1 million children who did not receive MCV1 in 2010, 10.4 million (55%) were in five countries: India (6.7 million), Nigeria (1.7 million), Democratic Republic of the Congo (DRC) (0.8 million), Uganda (0.6 million), and Pakistan (0.6 million).

By 2010, all countries had provided a second opportunity for measles vaccination. The second dose of MCV was offered through routine services in 139 (72%) countries, including seven (15%) of 47 high-burden priority countries.* In 2010, MCV2 coverage among target-aged children, based on administrative records, was reported by 102 (73%) countries, and 67 (66%) of those countries reported ≥90% coverage. During 2000–2010, approximately 1 billion children received measles vaccination through SIAs. During 2009–2010, based on country reports, >323 million children in 55 countries were vaccinated during 63 SIAs, including 40 reaching >142 million children in 32 (68%) of 47 priority countries. Reported coverage was >90% for 46 (73%) SIAs, including 26 (72%) in priority countries (Table 2).

Surveillance Activities

The number of countries reporting annual measles surveillance data to WHO and UNICEF (6,7) increased from 169 (88%) in 2000 to 190 (98%) in 2010. Measles surveillance included case-based surveillance with laboratory testing to confirm cases and outbreaks. By 2010, 179 countries (83%) had implemented case-based surveillance, up from 120 (62%) in 2004, and the number of countries supported with standardized quality-controlled testing by the WHO Measles and Rubella Laboratory Network increased to 183 (95%) from 71 (37%) in 2000.

From 2000 to 2010, annually reported measles cases decreased 60% worldwide, from 853,480 to 339,845, and measles incidence decreased 66% from 146 cases per million to 50 cases per million, with all WHO regions reporting decreases in cases and incidence (Table 1). The greatest decrease in reported measles cases was from 853,480 in 2000 to 277,968 in 2008 (Figure).

From 2008 to 2009, global reported measles cases remained stable, with increases in the African Region (AFR) from 37,012 to 83,479 and the Eastern Mediterranean Region (EMR) from 12,120 to 36,605 balanced by a decrease in the Western Pacific Region (WPR) from 147,987 to 66,609. In 2010, decreases in reported measles cases in WPR to 49,460, in EMR to 10,072, and in the South-East Asia Region (SEAR) from 84,356 to 50,265 were offset by increases in AFR to 199,174 and in the European Region (EUR) from 7,499 to 30,625, with reported measles cases increasing globally to 339,845. Globally, the percentage of countries with reported measles incidence <5 cases per million increased from 64 (38%) of 169 reporting countries in 2000 to 122 (67%) of 183 reporting countries in 2008, then decreased to 115 (60%) of 190 reporting countries in 2010 (Table 1).

During 2009–2010, a number of countries experienced large outbreaks, including Malawi (118,712 cases), Burkina Faso (54,118), Iraq (30,328), Bulgaria (22,004), South Africa (18,356), Zambia (15,754), Zimbabwe (9,696), Vietnam (9,391), Nigeria (8,491), Namibia (7,214), the Philippines (6,368), DRC (5,407), France (5,048), and Ethiopia (4,235). The outbreaks were primarily associated with low MCV1 coverage and, in Burkina Faso, DRC, Ethiopia, Nigeria, the Philippines, and Vietnam, with suboptimal or delayed SIAs. In areas with high reported coverage, outbreak investigations found that the number of susceptible persons had grown over several years among adolescents and adults who had missed vaccination and that reported national routine or SIA coverage masked subnational immunity gaps. In Bulgaria, Malawi, Zambia, and Zimbabwe, these gaps often were found in groups with limited access to health services or who were reluctant to vaccinate their children because of philosophical or religious objections.

Reported by

Robert T. Perry, MD, Alya J. Dabbagh, PhD, Marta Gacic-Dobo, Jodi L. Liu, MS, Emily A. Simons, MHS, David A. Featherstone, PhD, Peter M Strebel, MBChB, Jean-Marie Okwo-Bele, MD, Dept of Immunization, Vaccines, and Biologicals, World Health Organization, Geneva, Switzerland. Div of Viral Diseases, National Center for Immunization and Respiratory Diseases, James L. Goodson, MPH, Global Immunization Div, Center for Global Health, CDC. Corresponding contributor: James L. Goodson, jgoodson@cdc.gov, 404-639-8170.

Editorial Note

After 8 years of decline, the number of reported measles cases remained stable in 2009 but increased in 2010. Continued decreases during 2009–2010 in WPR and SEAR contrasted with large outbreaks in EMR during 2009, in EUR during 2010, and in AFR during 2009–2010. In 2010, approximately 90% of cases were reported from AFR, EUR, and SEAR, and 40% of countries did not meet the annual incidence target of <5 cases per million population.

The increase in measles cases in 2010 occurred despite a steady rise in regional and global MCV1 coverage and high reported coverage through SIAs. Measles surveillance data and outbreak investigations provided critical information to identify gaps in population immunity, underserved populations, and program weaknesses, which led to corrective actions and refinements of vaccination strategies. In Iraq, Lesotho, Malawi, the Philippines, South Africa, and Zimbabwe the target age group for planned SIAs was widened beyond ages 9–59 months to include older groups affected by the outbreaks. In Zimbabwe, to build confidence in both routine and SIA vaccination among religious groups, specialized communication strategies were developed, the opening hours of vaccination services were customized to meet the community's needs, and government authorities advocated for vaccination with church leaders. In Ethiopia, a comprehensive review of previous SIA implementation and surveillance data led to a shift from using multiyear subnational SIAs to implementation of a national SIA conducted in two phases over 6 months and to the development of best practices used in the 2010 SIA. Surveillance data analyses and outbreak investigations should continue to be used to complement vaccination coverage monitoring to identify gaps in vaccination programs.

Interpretation of coverage and surveillance data is complicated by some limitations. Vaccination coverage can be biased by inaccurate estimates of target populations and reporting of doses delivered. Surveillance systems do not detect all measles cases because reporting is incomplete from communities and within health systems. Comparing annual measles case totals and incidence is difficult when completeness of reporting changes from year to year.

Measles elimination goals have been set by all WHO regions except SEAR, and elimination in the Region of the Americas has been achieved and maintained since 2002. In July 2010, a global technical consultation commissioned by WHO to evaluate the feasibility of measles eradication concluded that measles can and should be eradicated (8). The WHO Strategic Advisory Group of Experts on Immunization endorsed this conclusion in November 2010, adding that a target date should be based on measurable progress made toward existing objectives (9). In 2010, the world's two most populous countries made promising advances in measles control. China held the largest SIA in the world, vaccinating approximately 103 million children, and India began implementation of a 2-dose vaccination strategy.

Building on the previous WHO and UNICEF strategy, and recognizing the burden of congenital rubella syndrome and the availability of combination vaccines, the Measles Initiative has developed the 2012–2020 Global Measles and Rubella Strategic Plan.§ This plan aims to 1) achieve and maintain high levels of population immunity through high coverage with 2 doses of measles and rubella–containing vaccines, 2) establish effective surveillance to monitor disease and evaluate progress, 3) develop and maintain outbreak preparedness for rapid response and appropriate case management, 4) communicate and engage to build public confidence in and demand for vaccination, and 5) conduct research and development to support operations and improve vaccination and diagnostic tools.

To reverse the recent increase in global reported measles cases and to make further progress toward achieving 2015 objectives will require 1) overcoming declining political and financial commitments to measles control, 2) achieving uniform high coverage with 2 doses of MCV through routine services or SIAs, and 3) monitoring subnational MCV1 and MCV2 coverage data to guide the development of interventions to increase coverage. Reductions in measles mortality accounted for 23% of the estimated global decline in all-cause child mortality from 1990 to 2008 (10). This contribution to reaching United Nations' Millennium Development Goal 4 for reducing the mortality rate in children aged <5 years by 2015 is at risk unless the challenges to reaching uniform high coverage with 2 doses of MCV can be overcome.

References

  1. Wolfson LJ, Strebel PM, Gacic-Dobo M, et al. Has the 2005 measles mortality reduction goal been achieved? A natural history modelling study. Lancet 2007;369:191–200.
  2. World Health Organization (WHO), United Nations Children's Fund (UNICEF). WHO-UNICEF joint statement on strategies to reduce measles mortality worldwide. Geneva, Switzerland: 2001. Available at http://whqlibdoc.who.int/hq/2001/who_v&b_01.40.pdf. Accessed January 27, 2012.
  3. CDC. Global measles mortality, 2000–2008. MMWR 2009;58:1321–6.
  4. World Health Organization. Global eradication of measles: report by the Secretariat. Geneva, Switzerland; 2010. Available at http://apps.who.int/gb/ebwha/pdf_files/wha63/a63_18-en.pdf. Accessed January 27, 2012.
  5. World Health Organization (WHO), United Nations Children's Fund (UNICEF). WHO-UNICEF estimates of MCV coverage. Geneva, Switzerland; 2011. Available at http://apps.who.int/immunization_monitoring/en/globalsummary/timeseries/tswucoveragemcv.htm. Accessed January 27, 2012.
  6. World Health Organization. Measles reported cases. Geneva, Switzerland; 2011. Available at http://apps.who.int/immunization_monitoring/en/globalsummary/timeseries/tsincidencemea.htm. Accessed January 27, 2012.
  7. Measles/rubella/congenital rubella syndrome surveillance data final classification, 2010. Immunization Newsletter 2011;33:7. Available at http://new.paho.org/hq/index.php?option=com_docman&task=doc_download&gid=16202&itemid=358. Accessed January 27, 2012.
  8. World Health Organization. World Health Organization global technical consultation to assess the feasibility of measles eradication: meeting report. Geneva, Switzerland: World Health Organization; 2010. Available at http://www.who.int/immunization/sage/1_Global_Technical_Consultation_Assess_Feasibility_Measles_Erad_8_sept_2010.pdf. Accessed January 27, 2012.
  9. World Health Organization. Meeting of the Strategic Advisory Group of Experts on Immunization, November 2010: summary, conclusions and recommendations. Wkly Epidemiol Rec 2011;86:1–16.
  10. van den Ent MM, Brown DW, Hoekstra EJ, Christie A, Cochi SL. Measles mortality reduction contributes substantially to reduction of all cause mortality among children less than five years of age, 1990–2008. J Infect Dis 2011;204(suppl 1):s18–23.

* Afghanistan, Angola, Bangladesh, Benin, Burkina Faso, Burundi, Cambodia, Cameroon, Central African Republic, Chad, Congo, Côte d'Ivoire, Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Eritrea, Ethiopia, Gabon, Ghana, Guinea, Guinea-Bissau, India, Indonesia, Kenya, Lao People's Democratic Republic, Liberia, Madagascar, Mali, Mozambique, Myanmar, Nepal, Niger, Nigeria, Pakistan, Papua New Guinea, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Timor-Leste, Togo, Uganda, United Republic of Tanzania, Vietnam, Yemen, and Zambia.

Data for years before 2004 were not available.

§ The Measles Initiative is a broad partnership established in 2001, spearheaded by the American Red Cross, CDC, the United Nations Foundation, UNICEF, and WHO.

Additional information available at http://www.un.org/millenniumgoals/childhealth.shtml.


What is already known on this topic?

From 2000 to 2008, after implementation of recommended measles-control strategies, global routine coverage with the first dose of measles-containing vaccine (MCV1) increased from 72% to 83%, approximately 686 million children received a second opportunity for measles immunization during supplementary immunization activities (SIAs), and the estimated number of measles deaths decreased from 733,000 in 2000 to 164,000 in 2008.

What is added by this report?

Global MCV1 coverage increased to 85% in 2010, and provision of a second opportunity for immunization was expanded with approximately 1 billion children vaccinated in measles SIAs from 2000 to the end of 2010. From 2008 to 2009, the number of global reported measles cases remained stable, but in 2010, cases increased to 339,845, as a number of countries experienced large outbreaks. By the end of 2010, 40% of countries had not met the annual incidence target of <5 cases per million.

What are the implications for public health practice?

In 2010, the World Health Assembly endorsed the following measles objectives for 2015: 1) raise routine coverage with MCV1 for children aged 1 year to ≥90% nationally and ≥80% in every district or equivalent administrative unit, 2) reduce and maintain annual measles incidence at <5 cases per million, and 3) reduce measles mortality by ≥95% from the 2000 estimate. Achieving these objectives will require overcoming declining political and financial commitments, achieving high coverage with 2 doses of measles vaccine, and monitoring data to develop new interventions to increase coverage.


TABLE 1. Estimates of coverage with the first dose of measles-containing vaccine administered through routine immunization services among children aged 1 year, number of reported measles cases, and incidence, by World Health Organization (WHO) region, 2000 and 2010

WHO region

2000

% coverage with
the first dose of
measles-containing
vaccine*

No. of countries in region reporting cases (% of total)

No. of reported measles cases

Measles incidence (cases per million population)§¶

% countries with incidence <5 per million

African

56

40 (87)

520,102

838

8

Americas

92

35 (100)

1,755

2

89

Eastern Mediterranean

72

18 (86)

38,592

88

17

European

91

44 (85)

37,421

50

45

South-East Asia

61

9 (90)

78,558

51

0

Western Pacific

85

23 (85)

177,052

106

30

Total

72

169 (88)

853,480

146

38

47 priority countries

58

43 (93)

622,061

268

0

* From WHO/United Nations Children's Fund (UNICEF) estimates of national immunization coverage. Available at http://www.who.int/immunization_monitoring/routine/immunization_coverage/en/index4.html.

Sources: World Health Organization. Measles reported cases. Geneva, Switzerland: World Health Oranization; 2011. Available at http://apps.who.int/immunization_monitoring/en/globalsummary/timeseries/tsincidencemea.htm. Measles/rubella/congenital rubella syndrome surveillance data final classification, 2010.

Pan American Health Organization. Immunization newsletter 2011. Washington, DC: Pan American Health Organization; 2011. Available at http://new.paho.org/hq/index.php?option=com_docman&task=doc_download&gid=16202&Itemid=358.

§ Population data from United Nations, Department of Economic and Social Affairs, Population Division). World population prospects: the 2010 revision [CD-ROM edition].

Any countries not reporting data on measles cases for that year were removed from both the numerator and denominator.


TABLE 1. (Continued) Estimates of coverage with the first dose of measles-containing vaccine administered through routine immunization services among children aged 1 year, number of reported measles cases, and incidence, by World Health Organization (WHO) region, 2000 and 2010

WHO region

2010

% coverage with
the first dose of
measles-containing
vaccine*

No. of countries in region reporting cases (% of total)

No. of reported measles cases

% decline from 2000

Measles incidence (cases per million population)§¶

% decline from 2000

% countries with incidence <5 per million

African

76

46 (100)

199,174

62

238

72

30

Americas

93

35 (100)

249

86

0.3

86

100

Eastern Mediterranean

85

20 (95)

10,072

74

17

81

40

European

95

52 (98)

30,625

18

34

32

69

South-East Asia

79

10 (91)

50,265

36

28

44

30

Western Pacific

97

27 (100)

49,460

72

28

74

70

Total

85

190 (98)

339,845

60

50

66

60

47 priority countries

78

47 (100)

109,361

82

39

85

21

* From WHO/United Nations Children's Fund (UNICEF) estimates of national immunization coverage. Available at http://www.who.int/immunization_monitoring/routine/immunization_coverage/en/index4.html.

Sources: World Health Organization. Measles reported cases. Geneva, Switzerland: World Health Oranization; 2011. Available at http://apps.who.int/immunization_monitoring/en/globalsummary/timeseries/tsincidencemea.htm. Measles/rubella/congenital rubella syndrome surveillance data final classification, 2010.

Pan American Health Organization. Immunization newsletter 2011. Washington, DC: Pan American Health Organization; 2011. Available at http://new.paho.org/hq/index.php?option=com_docman&task=doc_download&gid=16202&Itemid=358.

§ Population data from United Nations, Department of Economic and Social Affairs, Population Division). World population prospects: the 2010 revision [CD-ROM edition].

Any countries not reporting data on measles cases for that year were removed from both the numerator and denominator.


TABLE 2. Measles supplementary immunization activities (SIAs) and delivery of other child health interventions, by country and World Health Organization (WHO) region, 2009–2010

Year

 WHO region/country*

Age group targeted

Extent of SIA

 Children reached in targeted age group

Other interventions delivered

Oral polio vaccination

Vitamin A

Insecticide-treated bednets

Deworming medication

Tetanus toxoid vaccination

Rubella vaccination

No.

(%)§

African

2009

Angola*

9–59 mos

National

3,469,806

(101)

Yes

Yes

Yes

Yes

Botswana

9–59 mos

National

195,841

(115)

Yes

Burkina Faso*

6 mos–14 yrs

Subnational

3,833,116

(105)

Yes

Yes

Burundi*

6–59 mos

National

1,321,915

(95)

Yes

Yes

Yes

Yes

Cameroon*

9–59 mos

National

3,315,076

(96)

Yes

Yes

Yes

Yes

Cape Verde

9–59 mos

National

41,703

(87)

Yes

Chad*

9–59 mos

National

1,750,148

(89)

Yes

Yes

Yes

Yes

Democratic Republic of the Congo*

6–59 mos

Rollover — national**

2,412,168

(93)

Yes

Yes

Yes

Yes

Yes

Equatorial Guinea*

12–59 mos

National

70,500

(80)

Yes

Yes

Yes

Eritrea*

9–47 mos

National

281,063

(82)

Yes

Yes

Ethiopia*

6–59 mos

Rollover — national

1,250,685

(89)

Yes

Yes

Yes

Yes

Guinea*

9–59 mos

National

1,977,225

(101)

Yes

Yes

Yes

Yes

Yes

Guinea-Bissau*

9–59 mos

National

208,608

(101)

Yes

Yes

Kenya*

9–59 mos

National

5,525,400

(82)

Yes

Yes

Yes

Namibia

9–59 mos

National

256,006

(104)

Yes

Yes

Rwanda*

9–59 mos

National

1,350,125

(101)

Yes

Yes

Yes

Yes

Sierra Leone*

9–59 mos

National

829,842

(101)

Yes

Yes

Yes

Yes

South Africa

Varied

3 subnational SIAs

2,564,777

(86)

Yes

Yes

Swaziland

9-47 mos

National

87,592

(96)

Yes

Yes

Uganda*

9-47 mos

National

4,893,634

(104)

Yes

Yes

Yes

Yes

Yes

Zimbabwe

9-59 mos

National

1,408,589

(92)

Yes

Yes

2010

Comoros

6-47 mos

National

62,727

(84)

Yes

Yes

Congo*

9-59 mos

National

575,940

(82)

Yes

Yes

Yes

Yes

Democratic Republic of the Congo*

6–59 mos

Rollover — national

1,259,363

(103)

Yes

Yes

Yes

Yes

Yes

Ethiopia*

Varied

Rollover — national

9,133,332

(105)

Yes

Yes

Yes

Yes

Ghana*

9–59 mos

National

4,002,842

(93)

Yes

Yes

Yes

Lesotho

6 mos–15 yrs

National

558,335

(91)

Yes

Yes

Madagascar*

9–47 mos

National

2,415,792

(93)

Yes

Yes

Malawi

9 mos–15 yrs

National

6,785,428

(107)

Yes

Yes

Niger*

9–47 mos

National

2,656,616

(102)

Yes

Yes

Yes

Senegal*

6–59 mos

National

1,941,874

(93)

Yes

Yes

Yes

Yes

South Africa

6 mos–15 yrs

National

14,592,721

(98)

Yes

Yes

Swaziland

9–59 mos

National

112,740

(90)

Yes

Yes

Togo*

9–47 mos

National

854,376

(97)

Yes

Yes

Yes

Zambia*

9–47 mos

National

1,961,316

(115)

Yes

Yes

Yes

 

Zimbabwe

6 mos–14 yrs

National

5,164,307

(97)

 

Yes

 

 

 

 

 

Americas

2009

Argentina

1–4 yrs

National

2,748,107

(98)

Yes

Yes

Paraguay

1–8 yrs

National

973,980

(99)

Yes

Yes

2010

Colombia

1–8 yrs

National

6,406,221

(94)

Yes

Dominican Republic

1–8 yrs

National

1,530,854

(97)

Yes


TABLE 2. (Continued) Measles supplementary immunization activities (SIAs) and delivery of other child health interventions, by country and World Health Organization (WHO) region, 2009–2010

Year

 WHO region/country*

Age group targeted

Extent of SIA

Children reached in targeted age group

Other interventions delivered

Oral polio vaccination

Vitamin A

Insecticide-treated bednets

Deworming medication

Tetanus toxoid vaccination

Rubella vaccination

No.

(%)§

 

Eastern Mediterranean

2009

Afghanistan*

9–36 mos

National

3,000,777

(108)

Yes

Yes

Yes

Egypt

2–11 yrs

Rollover — national

17,843,885

(104)

Yes

Yes

Iraq

6 mos–12 yrs

National

10,553,799

(92)

Yes

Libya

12 mos–6 yrs

National

748,345

(98)

Yes

Yes

Yemen*

9 mos–5 yrs

National

3,868,475

(95)

Yes

Yes

Yes

2010

Iraq

9–59 mos

National

2,603,752

(93)

Yes

Pakistan*

9 mos–<13 yrs

Subnational

13,740,906

(96)

Yes

Yes

Sudan*

9–59 mos

Rollover — national

2,076,757

(95)

Yes

Yes

Yes

Yes

 

 

European

2009

Tajikistan

1–14 yrs

National

2,298,700

(98)

Yes

Yes

 

South-East Asia

 

 

 

 

 

 

 

 

 

2009

Indonesia*

9–59 mos

Rollover — national

1,954,333

(92)

Yes

Yes

Timor-Leste*

9–59 mos

National

126,823

(76)

Yes

Yes

2010

Bangladesh*

9–59 mos

National

36,171,370

(99)

Yes

Yes

Yes

India*

9 mos–10 yrs

Rollover — national

12,076,836

(86)

Yes

 

Indonesia*

9–59 mos

Rollover — national

3,302,459

(91)

Yes

 

 

 

Yes

 

Western Pacific

2009

Kiribati

12–59 mos

National

9,865

(107)

Yes

Yes

Yes

Papua New Guinea*

6–83 mos

Rollover — national

948,479

(86)

Yes

Yes

Solomon Islands

12–59 mos

National

60,025

(90)

Yes

Yes

Vanuatu

12–59 mos

National

29,919

(98)

Yes

Yes

2010

China

Varied by province

National

103,400,000

(98)

Federated States of Micronesia

1–6 yrs

Rollover — national

6,900

(90)

Yes

Yes

Papua New Guinea*

6 mos–2 yrs

Rollover — national

463,462

(83)

Yes

Yes

Yes

Tuvalu

1–5 yrs

National

1,095

(79)

Yes

Yes

Yes

Vietnam*

1–5 yrs

National

7,034,895

(96)

2009

Total

 

 

82,209,331

 

 

 

 

 

 

 

2010

Total

 

 

240,893,216

 

 

 

 

 

 

 

* Country is among the 47 high-burden priority countries: Afghanistan, Angola, Bangladesh, Benin, Burkina Faso, Burundi, Cambodia, Cameroon, Central African Republic, Chad, Congo, Côte d'Ivoire, Democratic Republic of the Congo, Djibouti, Equatorial Guinea, Eritrea, Ethiopia, Gabon, Ghana, Guinea, Guinea-Bissau, India, Indonesia, Kenya, Lao People's Democratic Republic, Liberia, Madagascar, Mali, Mozambique, Myanmar, Nepal, Niger, Nigeria, Pakistan, Papua New Guinea, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Timor-Leste, Togo, Uganda, United Republic of Tanzania, Vietnam, Yemen, and Zambia.

SIAs generally are carried out using two approaches. An initial, nationwide catch-up SIA targets all children aged 9 months–14 years; it has the goal of eliminating susceptibility to measles in the general population. Periodic follow-up SIAs then target all children born since the last SIA. Follow-up SIAs generally are conducted nationwide every 2–4 years and target children aged 9–59 months; their goal is to eliminate any measles susceptibility that has developed in recent birth cohorts and to protect children who did not respond to the first measles vaccination.

§ Values >100% indicate that the intervention reached more persons than the estimated target population.

Subnational campaigns were in response to large measles outbreaks (Burkina Faso and South Africa) or natural disasters (Pakistan).

** Rollover national campaigns started the previous year or will continue into the next year.


FIGURE. Number of reported measles cases and percentage of countries with estimated measles incidence <5 per million, by World Health Organization region, 2000–2010

The figure shows the number of reported measles cases and percentage of countries with estimated measles incidence <5 per million, by World Health Organization region during 2000-2010. From 2000 to 2010, annually reported measles cases decreased 60% worldwide, from 853,480 to 339,845, and measles incidence decreased 66% from 146 cases per million to 50 cases per million, with all WHO regions reporting decreases in cases and incidence. The greatest decrease in reported measles cases was from 853,480 in 2000 to 277,968 in 2008.

Abbreviations: AFR = African Region, AMR = Region of the Americas, EMR = Eastern Mediterranean Region, EUR = European Region, SEAR = South-East Asia Region, WPR = Western Pacific Region.

Alternate Text: The figure above shows the number of reported measles cases and percentage of countries with estimated measles incidence <5 per million, by World Health Organization region during 2000-2010. From 2000 to 2010, annually reported measles cases decreased 60% worldwide, from 853,480 to 339,845, and measles incidence decreased 66% from 146 cases per million to 50 cases per million, with all WHO regions reporting decreases in cases and incidence. The greatest decrease in reported measles cases was from 853,480 in 2000 to 277,968 in 2008.


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