 Umuti wa dexamethasone ni inkuru nziza - OMS Covid-19: Amakuru ukeneye ku nkingo nuko ruzakugeraho Covid-19: Urukingo rwUbushinwa ruzaba rutunganye mu kwa 11 Biden yavuze ko azagarura Amerika muri OMS OMS iri mu nama ku cyicaro gikuru cyayo i Genève mu Busuwisi, ireba ku buryo iri guhangana niki cyorezo. 