BEIJING – In a rare acknowledgment of the weakness of Chinese coronavirus vaccines, the country’s leading disease control official said its effectiveness was low and that the government was considering mixing it to boost it.
Chinese vaccines “do not have very high protection rates,” China Centers for Disease Control director Gao Fu said at a conference in the southwestern city of Chengdu on Saturday.
Beijing has distributed hundreds of millions of doses abroad while trying to question the efficacy of the Pfizer-BioNTech vaccine made using the previously experimental messenger RNA, or mRNA.