Uh-oh.In the meantime, some countries have turned to other vaccine manufacturers to source their doses, but they don't play a big role overall. At the end of March, Hungary had received half a million doses of the Russian Sputnik V vaccine and 1.1 million doses of Chinese Sinopharm/Beijing, according to the latest data from the ECDC. And Slovakia received 200,000 doses of Sputnik in early March.
https://apnews.com/article/beijing-immu ... 8ffbff6ef9
China’s top disease control official, in a rare acknowledgement, said current vaccines offer low protection against the coronavirus and mixing them is among strategies being considered to boost their effectiveness.