A monk reacts while receiving the first dose of China's Sinovac Biotech vaccine for the coronavirus disease (COVID-19) during the mass vaccination program for clergy at the parking lot of Grand Istiqlal Mosque in Jakarta, Indonesia, February 25, 2021. REUTERS/Ajeng Dinar Ulfiana

Healthcare worker prepares a dose of China's Sinovac Biotech vaccine for the coronavirus disease (COVID-19) during the mass vaccination program for clergy at the parking lot of Grand Istiqlal Mosque in Jakarta, Indonesia, February 25, 2021. REUTERS/Ajeng Dinar Ulfiana

Nuns stand in line while waiting to receive their first dose of China's Sinovac Biotech vaccine for the coronavirus disease (COVID-19) during the mass vaccination program for clergy at the parking lot of Grand Istiqlal Mosque in Jakarta, Indonesia, February 25, 2021. REUTERS/Ajeng Dinar Ulfiana

Monks and nuns wear protective masks during health screening before receiving their first dose of China's Sinovac Biotech vaccine for the coronavirus disease (COVID-19) at the parking lot of Grand Istiqlal Mosque in Jakarta, Indonesia, February 25, 2021. REUTERS/Ajeng Dinar Ulfiana

A healthcare worker prepares a dose of China's Sinovac Biotech vaccine for the coronavirus disease (COVID-19) during the mass vaccination program for clergy at the parking lot of Grand Istiqlal Mosque in Jakarta, Indonesia, February 25, 2021. REUTERS/Ajeng Dinar Ulfiana

People talk to the officials before receiving the first dose of China's Sinovac Biotech vaccine for the coronavirus disease (COVID-19) during the mass vaccination program for clergy at the parking lot of Grand Istiqlal Mosque in Jakarta, Indonesia, February 25, 2021. REUTERS/Ajeng Dinar Ulfiana