A woman receives a booster shot of COVID-19 vaccine in Gaborone, Botswana, on Jan. 17, 2022. Botswana started offering booster shots of COVID-19 vaccines from Monday. (Photo by Tshekiso Tebalo/Xinhua)
A nurse finishes administering a booster shot of COVID-19 vaccine to a recipient in Gaborone, Botswana, on Jan. 17, 2022. Botswana started offering booster shots of COVID-19 vaccines from Monday. (Photo by Tshekiso Tebalo/Xinhua)
A man receives a booster shot of COVID-19 vaccine in Gaborone, Botswana, on Jan. 17, 2022. Botswana started offering booster shots of COVID-19 vaccines from Monday. (Photo by Tshekiso Tebalo/Xinhua)
People wait to receive booster shots of COVID-19 vaccine in Gaborone, Botswana, on Jan. 17, 2022. Botswana started offering booster shots of COVID-19 vaccines from Monday. (Photo by Tshekiso Tebalo/Xinhua)