Ukuhlaziywa kwe-CNN kukhombisa ukuthi ukuhlolwa kwe-antigen ye-Covid-19 akufakiwe ezimeni kwezinye izifundazwe

(CNN) Isamba senani lamacala e-Covid-19 kwezinye izifundazwe namanje alifaki imiphumela yokuhlolwa kwe-antigen-ngisho nanjengoba kunconywe yi-US Centers for Disease Control and Prevention.