A healthcare worker reacts as she receives a dose of COVISHIELD, a COVID-19 vaccine manufactured by Serum Institute of India, during one of the world's largest COVID-19 vaccination campaigns at Mathalput Community Health Centre in Koraput district of the eastern state of Odisha, India, January 16, 2021. Reuters

India's vaccination drive
hits bump due to app glitch

Many health workers, who were due to receive a vaccine on Saturday, did not get the message via the app developed by the government