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Volume 28, Supplement—December 2022
Effects of Decreased Immunization Coverage for Hepatitis B Virus Caused by COVID-19 in World Health Organization Western Pacific and African Regions, 2020
|Variables||Baseline, 2019||Hepatitis B birth dose
||Hepatitis B third-dose†
|Decrease, 10%||Decrease, 20%||Decrease, 10%||Decrease, 20%|
|Western Pacific Region|
|Hepatitis B birth dose coverage||84%||76%||67%||NA||NA|
|Hepatitis B third-dose coverage||94%||NA||NA||85%||75%|
|Hepatitis B birth dose coverage||17%||15%||14%||NA||NA|
|Hepatitis B third-dose coverage||73%||NA||NA||66%||58%|
*We assumed that in the absence of the COVID-19 pandemic, 2019 hepatitis B vaccination coverage levels would have been maintained in 2020; hepatitis B vaccination coverages for 2020 were estimated from 2019 baseline coverage levels, and baseline coverage levels were from World Health Organization/UNICEF estimates of national immunization coverage or derived from official or administrative estimates from specific countries. HBV, hepatitis B virus; NA, not applicable. †Hepatitis B third-dose coverage was a combination of a hepatitis B birth dose and 2 additional doses of hepatitis B vaccine in 14 countries in the Western Pacific Region. Other countries provided up to 3 additional hepatitis B doses in a pentavalent vaccine.
1These authors contributed equally to this article.