FILE PHOTO: Healthcare worker administers the coronavirus disease (COVID-19) vaccine to a woman, in Johannesburg

FILE PHOTO: A healthcare worker administers the coronavirus disease (COVID-19) vaccine to a woman, amidst spread of the SARS-CoV-2 variant Omicron in Johannesburg, South Africa, December 04, 2021. Picture taken December 04, 2021. REUTERS/Sumaya Hisham/File Photo