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Data, statistics and graphics by subject
Disease incidence is the principle measure of impact of the immunization system. Disease incidence data usually represent only a fraction of the cases, but are useful to monitor trends
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reported incidence time series (html)
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download reported incidence time series [xls 508kb]
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polio case count data
Immunization coverage is a key measure of system performance and output
In most countries administrative coverage data are collected by monitoring the number of doses administered to the target population. This number is divided by the total estimated number in the target population to estimate % immunization coverage
Immunization coverage surveys are also recommended by WHO to be conducted periodically to verify administrative coverage data
WHO and UNICEF request from countries their best estimate of coverage (administrative or survey data) and this figure is reported as official coverage estimate
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reported estimates of immunization coverage time series (html)
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download reported estimates of immunization coverage time series [xls 514kb]
Based on the data available, consideration of potential biases, and contributions from local experts, WHO and UNICEF have attempted to determine the most likely true level of immunization coverage. Estimates of national immunization coverage were made for BCG, the third dose of diphtheria, tetanus and pertussis vaccine (DTP3), the third dose of polio vaccine (Pol3), the first dose of measles vaccine (MCV) and the third dose of hepatitis vaccine (HepB3). Since 2000, estimates have been done for the proportion of live births protected (PAB) through maternal immunization with at least 2 doses of tetanus toxoid for country where the risk of neonatal tetanus is a significant public health problem. In 2005 estimates of the first dose diphtheria and tetanus toxoid and pertussis vaccine (DTP1) and the third dose of haemophilus influenzae type b (Hib3) have also been added
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WHO/UNICEF estimated coverage time series (html)
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download WHO/UNICEF estimated coverage time series [xls 360kb]
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Country summaries (in pdf)
Indicators of system performance and process are monitored in most countries. WHO and UNICEF collect information on planning and management, system performance, surveillance, policy, safety, finance, new vaccines introduction, maternal and neonatal tetanus (MNT) elimination, polio eradication, vitamin A, measles mortality reduction and yellow fever control
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reported indicator times series from 2001 (html)
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download reported indicator time series from 2001 [xls 4.71Mb]
National immunization schedules are established to guide immunization staff at all levels. WHO recommends that all countries immunize against diphtheria, hepatitis B, measles, pertussis, poliomyelitis, and tetanus. Countries with a substantial burden due to haemophilus influenzae type B (Hib) are encouraged to introduce Hib vaccine into their national immunization schedule. Bacilles-Calmette Guerin (BCG) vaccine is recommended at birth in those countries with a high prevalence of tuberculosis (TB). Immunization against yellow fever is recommended in countries at risk for outbreaks. Immunization schedules vary by country and depend primarily on the local epidemiology of the vaccine-preventable disease and an ability to finance the vaccine
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reported immunization schedules by vaccine (html)
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download reported immunization schedules [xls 323kb]
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download year of introduction of selected vaccines database [xls 4.99Mb]
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immunization schedules by disease covered by antigens within age range (html)
Supplementary immunization activities (SIAs) are used to reach the population who has not been vaccinated or has not developed sufficient immunity after previous vaccinations
supplementary immunization calendar
Retrospective Measles Data on Supplementary Immunization Activities 2000-2008 [xls 95kb]
Last Update: 16 October 2009
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