A woman receives a dose of Hepatitis B vaccine during a free Hepatitis B vaccination campaign at a health center in Kampala, Uganda, Feb. 22, 2021. (Photo by Nicholas Kajoba/Xinhua)
A baby receives a dose of vaccine during a free Hepatitis B vaccination campaign at a health center in Kampala, Uganda, Feb. 22, 2021. (Photo by Nicholas Kajoba/Xinhua)