Alex Azar, umunyamabanga ushinzwe ibikorwa by'ubuzima mu kigo FDA, yabwiye abanyamakuru mbere yaho ku wa gatanu ko icyo kigo kizakorana n'uruganda Pfizer rukora imiti kugira ngo urwo rukingo rutangire gutangwa ku bwinshi ku wa mbere cyangwa ku wa kabiri.
