Western scientists have previously expressed concern about the speed of development of Russian vaccines and researchers say they are cutting corners.
Saynisyahannada Reer Galbeedka ayaa hore u soo saaray walaac ku saabsan xawaaraha horumarka ee tallaallada Ruushka, iyagoo soo jeedinaya in cilmi baarayaashu ay goyn doonaan geesaha.