EU regulators start review of China's Sinovac vaccine
FILE - In this file photo dated Tuesday, April 20, 2021, exterior view of the European Medicines Agency, EMA, in Amsterdam, Netherlands. The European Union’s drug regulator medicines agency said Tuesday May 4, 2021, it has started a rolling review of China’s Sinovac coronavirus vaccine to assess its effectiveness and safety, which is a first step toward possible approval for use in the 27-nation bloc. (AP Photo/Peter Dejong, FILE)

FILE - In this file photo dated Tuesday, April 20, 2021, exterior view of the European Medicines Agency, EMA, in Amsterdam, Netherlands. The European Union’s drug regulator medicines agency said Tuesday May 4, 2021, it has started a rolling review of China’s Sinovac coronavirus vaccine to assess its effectiveness and safety, which is a first step toward possible approval for use in the 27-nation bloc. (AP Photo/Peter Dejong, FILE)

May. 04, 2021 07:13 AM EDT
FILE - In this file photo dated Tuesday, April 20, 2021, an exterior view of the European Medicines Agency, EMA, in Amsterdam, Netherlands. The European Union’s drug regulator medicines agency said Tuesday May 4, 2021, it has started a rolling review of China’s Sinovac coronavirus vaccine to assess its effectiveness and safety, which is a first step toward possible approval for use in the 27-nation bloc. (AP Photo/Peter Dejong, FILE)

FILE - In this file photo dated Tuesday, April 20, 2021, an exterior view of the European Medicines Agency, EMA, in Amsterdam, Netherlands. The European Union’s drug regulator medicines agency said Tuesday May 4, 2021, it has started a rolling review of China’s Sinovac coronavirus vaccine to assess its effectiveness and safety, which is a first step toward possible approval for use in the 27-nation bloc. (AP Photo/Peter Dejong, FILE)

May. 04, 2021 07:15 AM EDT
A health worker inoculates a man with tattoos with China's Sinovac COVID-19 vaccine inside the Makati Coliseum, Metro Manila, Philippines on Tuesday, May 4, 2021. The Philippines started a simultaneous vaccination of the initial 15,000 doses of Russia's Sputnik V COVID-19 vaccines that arrived in the country earlier this week. (AP Photo/Aaron Favila)

A health worker inoculates a man with tattoos with China's Sinovac COVID-19 vaccine inside the Makati Coliseum, Metro Manila, Philippines on Tuesday, May 4, 2021. The Philippines started a simultaneous vaccination of the initial 15,000 doses of Russia's Sputnik V COVID-19 vaccines that arrived in the country earlier this week. (AP Photo/Aaron Favila)

May. 04, 2021 04:52 AM EDT