Among 67 million children worldwide missing out on vaccinations between 2019 and 2021, Vietnam accounted for nearly 250,000 children. Vaccination coverage levels decreased in 112 countries, including Vietnam, UNICEF warned in its new report. In Vietnam, data showed that the prevalence of zero-dose children in urban areas was almost 1.5 times higher that of those in rural areas. Among 67 million children worldwide missing out on vaccinations between 2019 and 2021, Vietnam accounted for nearly 250,000 children. Vaccination coverage levels decreased in 112 countries, including Vietnam, UNICEF warned in its new report.