Profeseri Ugur Sahin, umwe mu bashinze ikigo cy'ubushakashatsi no gukora imiti cya BioNTech, yavuze ko guhera kuri iyi mpera y'uyu mwaka kugeza mu ntangiriro y'utaha urukingo rutaba rwagize icyo rukora gikomeye ku mibare y'abandura Covid-19.
