 Ibipimo ku bikoko bitanga icizere curukingo rwa coronavirus Umuti wa dexamethasone ni inkuru nziza - OMS Bill Gates aburira abantu kwirinda amakuru atari yo ku nkingo Dose miliyoni zurukingo rwa Covid-19 mu kwa cyenda Profeseri Shabir Madhi, umuhanga mu byinkingo wo muri Kaminuza ya Wits ni we uyoboye igerageza ryuru rukikogo muri Afurika yEpfo, ubushakashatsi bafatanyijemo na Kaminuza ya Oxford yo mu Bwongereza hamwe nikigo Oxford Jenner Institute cyarukoze. 