Progress towards measles Elimination--South-East Asia Region, 2003-2020/Progres realises en vue d'eliminer la rougeole--Region de l'Asie du Sud-Est, 2003-2020.

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From: Weekly Epidemiological Record(Vol. 97, Issue 33)
Publisher: World Health Organization
Document Type: Article
Length: 5,351 words
Lexile Measure: 1800L

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In 2013, the Member States in the WHO South-East Asia Region (SEAR) (1) adopted the goal of measles elimination and rubella and control of congenital rubella syndrome (2) by 2020. (3) In 2014, to provide impetus to achieving this goal, the Regional Director declared measles elimination and rubella control one of the regional flagship priorities. In 2019, SEAR Member States declared a revised goal of eliminating both measles and rubella [4] by 2023. (5) The recommended strategies to achieve elimination include 1) achieving and maintaining [greater than or equal to] 95% coverage with 2 doses of measles- and rubella-containing vaccine in every district through routine or supplementary immunization activities (SIAs); (6) 2) developing and sustaining sensitive, timely case-based surveillance systems that meet recommended performance indicators; (7) 3) developing and maintaining an accredited laboratory network; 4) achieving timely identification, investigation and response to measles outbreaks; and 5) collaborating with other public health initiatives to achieve the preceding 4 strategies. This report updates a previous report and describes progress towards measles elimination in the South-East Asia Region during 2003-2020. (8)

In 2002, coverage with the first dose of a measles-containing vaccine (MCV1) was 70% and only 3 countries in the Region had added a second routine dose of a measles-containing vaccine (MCV2). During 2003-2020, all countries introduced MCV2, and estimated coverage with MCV1 increased 35% from 65% to 88%, and coverage with MCV2 increased 1,233% from 6% to 80%. Approximately 938 million people were vaccinated in SIAs. The annual reported measles incidence decreased by 92%, from 57.0 to 4.8 cases per million population, and the estimated number of deaths decreased by 97%; an estimated 9.3 million deaths were averted by measles vaccination. By 2020, 5 countries were verified as having achieved measles elimination. To achieve measles elimination in the Region by 2023, additional work is needed urgently to strengthen routine immunization services and improve measles-containing vaccine (MCV) coverage, conduct periodic high-quality SIAs and strengthen measles case-based surveillance and laboratory capacity.

Immunization activities

MCV1 was introduced in all 11 countries in the South-East Region before 2003 (Table 1). A routine second MCV dose (MCV2) was introduced in 3 countries (Indonesia, Sri Lanka, and Thailand) before 2003; the remaining 8 countries introduced MCV2during 2003-2020.

Countries report national and subnational coverage for MCV1 and MCV2 doses delivered through routine immunization programmes to WHO and the United Nations Children's Fund (UNICEF), which use data from administrative records (vaccine doses administered divided by the estimated target population) and surveys reported by Member States to estimate MCV1 and MCV2 coverage. (9) Estimated MCV1 regional coverage increased by 35%, from 65% in 2003 to 88% in 2020; 5 countries reported [greater than or equal to] 95% MCV1 coverage in 2020 (Table 1) (Figure 1). The highest regional MCV1 coverage (94%) was reached in 2019, just before the start of the COVID-19 pandemic. Estimated MCV2 coverage increased by 1233%, from 6% in 2003 to 80% in 2020, with a peak of 83% in 2019; estimated MCV2 coverage in 3 countries...

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Gale Document Number: GALE|A715388105