HARARE, ZIMBABWE - MAY 12: A nurse draws the Covid-19 Vaccine Covaxin out of its vial before vaccination at a Hospital on May 12, 2021 in Harare, Zimbabwe. Zimbabwe was the first African country to approve the Covaxin Covid-19 vaccine, developed by Bharat Biotech International. (Photo by Tafadzwa Ufumeli/Getty Images)