 Shirkadda BioNTech iyo shirkadda ay iskaashadaan ee Pfizer, oo laga leeyahay waddanka Mareykanka, waxay ku dhawaaqeen in tallaalka ay soo saareen uu 90 dadka ka difaaci karo inuu jirkooda ku dhaco fayraska corona ee dhaliya cudurka Covid-19, sida lagu ogaaday natiijada wajigii saddexaad ee tijaabada la sameeyay. 