A nurse in a blue protective suit, white mask, and green hair net prepares a COVID-19 vaccine at the Ngaliema Clinic in Kinshasa, Democratic Republic of Congo, April 29, 2021.
A nurse prepares a dose of the AstraZeneca COVID-19 vaccine at the Ngaliema Clinic in Kinshasa, Democratic Republic of Congo, on April 29, 2021.  REUTERS/Hereward Holland