 Covid-19: Urukingo Pfizer rwemerewe gukoreshwa byamaburakindi muri US Covid-19: Menya umugabo numugore bahabwa amahirwe yo kubona urukingo Ubwongereza bubaye igihugu ca mbere cemeje urucanco Pfizer rwa Covid Covid-19: Amakuru ukeneye ku nkingo nuko ruzakugeraho Kuva mu kwezi kwa cumi na kumwe, umubare wabicwa na coronavirus wakomeje kwiyongera cyane muri Amerika. 