https://www.cnn.com/2021/04/12/china/china-vaccine-efficacy-intl-hnk/index.html

ByNectar Gan, CNN

Updated 3:23 AM ET, Mon April 12, 2021

(CNN)The efficacy of ChineseCovid-19vaccines is “not high” and authorities are weighing options to bolster protection — including mixing different shots, China’s top disease control official has said.”The protection rates of existing vaccines are not high,” Gao Fu, director of the Chinese Center for Disease Control and Prevention, told a conference in the southwestern city of Chengdu on Saturday.He listed two options to solve the problem: one is to increase the number of doses, or adjust the dosage or interval between shots; the other is to mix vaccines developed from different technologies.

Gao’s remarks are a rare public admission from the country’s top health official that the efficacy of China’scoronavirus vaccinesis not ideal — and improvements are needed to boost protection.

Gao Fu, director of the Chinese Center for Disease Control and Prevention…