
A woman receives a dose of the COVID-19 vaccine in Bangkok, Thailand, on April 4, 2022. (Xinhua/Rachen Sageamsak)

A woman receives a dose of the COVID-19 vaccine in Bangkok, Thailand, on April 4, 2022. (Xinhua/Rachen Sageamsak)

A woman receives a dose of the COVID-19 vaccine in Bangkok, Thailand, on April 4, 2022. (Xinhua/Rachen Sageamsak)

A health worker prepares a dose of the COVID-19 vaccine in Bangkok, Thailand, on April 4, 2022. (Xinhua/Rachen Sageamsak)