Source: South China Morning PostChina is exploring the option of mixing different Covid-19 vaccines as a solution to the relatively low efficacy of its existing jabs, the head of the country’s Centre for Disease Control and Prevention has said.
Gao Fu told a conference in Chengdu on Saturday that the country was examining two routes “to solve the problem that the efficacy of its existing vaccines is not high”.
One option is to adjust the dosage, the interval between doses or increase the number of doses. The second route is…Read More