Chinese Covid vaccines' effectiveness low: Official April 10, 2021 at 08:48PM

In a rare admission of the weakness of Chinese coronavirus vaccines, the country's top disease control official says their effectiveness is low and the government is considering mixing them to give them a boost. Chinese vaccines “don't have very high protection rates,” said the director of the China Centers for Disease Control, Gao Fu, at a conference Saturday in the southwestern city of Chengdu.