Binciken CNN ya nuna cewa ba a haɗa gwajin antigen na Covid-19 a cikin wasu jihohi ba

(CNN) Jimlar adadin shari'o'in Covid-19 a wasu jihohin har yanzu bai haɗa da sakamakon gwajin antigen ba-har ma kamar yadda Cibiyar Kula da Cututtuka ta Amurka ta ba da shawarar.