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| ● Introduction● Global vaccination coverage in 2022 (see) ● Vaccines containing diphtheria, tetanus and pertussis (see) ● Vaccines containing measles (see) ● Other vaccines (see) ● Summary (see) ● Updates from this website More information, bibliography and recommended links (see) |
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| ● The epidemic has had a negative impact on childhood immunization programs around the world, which is why childhood vaccination coverage generally declined in 2020 and 2021. World vaccination trends in 2022 compared to 2021 are discussed, showing some recovery, albeit uneven. ● Global coverage of the first dose of DPT vaccine increased from 86% to 89%, and that of the first dose of measles vaccine increased from 81% to 84%, but has not yet returned to pre-pandemic numbers in 2019, i.e. 90% and 86% respectively. ● Coverage recovery is unevenly distributed across regions and countries, with low-income countries recovering more slowly. ● Children who are not vaccinated at the appropriate age are concentrated in low- and middle-income countries and often do not have the opportunity to make up for missed vaccinations. Therefore, restoring lost vaccinations is a primary goal. ● While high-income countries are showing better trends, this is not the case in the UK, which worries them as they detect no signs of improvement in some vaccination coverage. |
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introduce
The COVID-19 pandemic has had a negative impact on childhood immunization programs around the world, leading to widespread, albeit varying, declines in childhood vaccination coverage in 2020 and 2021.
The World Health Organization established the Expanded Program on Immunization in 1974 with the goal that all children worldwide receive a minimum level of vaccination (diphtheria, tetanus, pertussis, polio, measles, and tuberculosis). Since then, the vaccination program (WHO recommendation, March 2023) has continued to expand, with new vaccines being administered globally and among populations in special circumstances.
In 2020, the World Health Organization released the Immunization Agenda 2030, one of its main goals is to reduce by 50% the number of children who have not received any dose of diphtheria, tetanus and pertussis (DTP) vaccine by 2030. But the outbreak of the pandemic paralyzed the deployment of planned measures.
In 2021, due to the impact of the epidemic on global vaccination plans, vaccine coverage hit its lowest level in the past decade, and the number of children with zero vaccinations increased by 40% in the first year.
This report discusses world vaccination trends in 2022, showing some recovery, albeit uneven.
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Global vaccination coverage in 2022
The data used to prepare this report have been collected and analyzed by the World Health Organization and UNICEF and recently published (Kaur G, MMWR Morb Mortal Wkly Rep 2023; Kaur G, Weekly Epidemiol Rec 2023).
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Vaccine containing diphtheria, tetanus and whooping cough
- Global first-dose DTP coverage increased from 86% in 2021 to 89% in 2022, but is still lower than 2019 coverage (90%).
- Similarly, third-dose DTP coverage increased from 81% in 2021 to 84% in 2022, but remains below 2019 levels (86%).
- During 2021 and 2022, first- and third-dose DPT coverage improved in all WHO regions except the African Region (AFR), where coverage stagnated at 80% and 72% respectively. %, down from 2019 levels (83% and 77%, respectively).
- Coverage in the European region remains at ≥97 during 2021 and 2022·% and ≥94% respectively.
- Southeast Asia experienced the largest recovery in 2022, with first-dose coverage rising from 86% to 93% and third-dose coverage rising from 82% to 91%.
- The number of children receiving zero doses (14.3 million) decreased by 21% in 2022 (18.1 million in 2021), but is still 11% higher than the 12.9 million in 2019. The AFR only reported an increase in the number of children receiving zero doses from 2021 to 2022 (2.6%; from 7.6 million to 7.8 million) (see attached figure).
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Vaccines containing measles ingredients
- From 2021 to 2022, global first-dose coverage increased from 81% to 83%, but is still lower than the coverage level in 2019 (86%). Figures for 2022 are lower than in 2019, except for the Eastern Mediterranean region, which has returned to pre-pandemic levels in 2019 (83%).
- Global second dose coverage increased from 71% in 2019 to 74% in 2022, mainly reflecting the introduction of second doses in 11 countries, mainly in the AFR.
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Other vaccines
- Global coverage of the following childhood vaccines increased from 2021 to 2022, but coverage levels in 2022 remain lower than in 2019: BCG (87%), three-dose hepatitis B (84%), three-dose polio inflammatory disease (84%) and first rubella dose (68%) remain lower than in 2019 (89%, 86%, 87% and 69% respectively).
- Due to the recent introduction of new vaccines, coverage increased from 2019 to 2022 for the following vaccines: HPV, first dose (19% to 21%), second dose (14% to 15%); three-dose pneumococcal conjugate vaccines (51% to 60%); and rotavirus (40% to 51%). Hepatitis B birth dose coverage remained relatively unchanged between 2012 and 2022 (increased from 44% to 45%).·%) and three doses of Hib (from 74% to 76%).
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In short
In 2022, global coverage of the first dose of DTP vaccine increased from 86% to 89%, and that of the first dose of measles vaccine increased from 81% to 84%, but has not yet returned to pre-pandemic 2019 levels. numbers, 90% and 86% respectively.
Furthermore, recovery in coverage has been unevenly distributed across regions and countries, with low-income countries recovering more slowly. The global distribution of zero-dose and incompletely vaccinated children in 2022 highlights equity issues in immunization coverage and the current challenges faced by many low- and lower-middle-income countries.
Children who are not vaccinated at the appropriate age and are concentrated in low- and middle-income countries often do not have the opportunity to make up for missed vaccinations. If these groups are not vaccinated, it will lead to an increasing number of susceptible people, which may have consequences for the entire population. Therefore, restoring lost vaccinations is a primary goal.
While high-income countries are showing better trends, this is not the case in the UK and they are concerned as they are seeing no signs of improvement with some vaccination figures falling; for example, in the London area, at least 25% of 5-year-olds Not yet had second dose of measles (Bedford H, BMJ 2023).
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For more information please visit this website
Bibliography and recommended links
- Bedford H. et al.. Action is urgently needed to maximize childhood vaccination rates. British Medical Journal. 2023;383:p2426.
- Kaur G. et al.. Routine vaccination coverage—global, 2022. MMWR Morb Mortal Wkly Rep. 2023;72:1155-61.
- Kaur G. et al.; World Health Organization, 3 November 2023. Routine vaccination coverage – worldwide, 2022. Weekly epidemiological report. 2023;98(44):555-66.
- O’Brien L. et al.. The huge catch-up in immunization coverage after the COVID-19 pandemic: Progress and challenges towards an equitable recovery. Lancet. 2023;402(10401):510-2.
- World Health Organization, July 26, 2023. The big catch-up: Essential immunity recovery plans for 2023 and beyond.
- World Health Organization, March 2023. Table 1: Summary of WHO position paper – Recommendations for routine immunization.
- WHO. World Health Organization vaccine position paper.
- WHO. Immunization Agenda 2030. A global strategy that leaves no one behind.
- World Health Organization, July 18, 2023. Immunization coverage.
- Soucheray S. Global childhood vaccination rates have increased but have not yet reached pre-pandemic levels. CIDRAP, November 2, 2023.
- UNICEF, July 2023. Immunization.
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