The currently available vaccines don’t have very high rates of protection, Gao Fu, the director of the Chinese Centers for Disease Control and Prevention, told a conference in the Chinese city of Chengdu on Saturday.
Meento e e leng teng ga jaanong jaana e na le dielo tse di kwa godimo tsa tshireletso, Gao Fu, Mokaedi wa ditikatikwe tsa go laola malwetse le thibelo kwa China, o buile jalo kwa khonferenseng kwa toropong ya Chengdu kwa China ka Lamatlhatso.