A healthcare worker gives a dose of the COVISHIELD vaccine against the coronavirus disease (COVID-19)...
A healthcare worker gives a dose of the COVISHIELD vaccine against the coronavirus disease (COVID-19), manufactured by Serum Institute of India, to a man as others decorate the vaccination centre to celebrate the milestone of administering one billion COVID-19 vaccine doses, in Ahmedabad, India, October 21, 2021. REUTERS/Amit Dave