Ngaphansi kwesizinda seCovid 19, abantu badinga ukuzivikela ngokugqoka imaski yobuso namagilavu. Indlela esebenza kahle kunazo zonke kufanele ibe ngamaski okugqoka. Sihlolisise imaski yobuso besiliva engabulala amagciwane atheleleke ngomgudu wokuphefumula, ingamelana nama-99.9% egciwane le-HIN1. UDkt JinJian Fa ...
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