Qee lub plawv mob, zoo li AF, yuav txuas ntxiv mus kuaj tau yooj yim nrog 1-txoj kev, tab sis ntxiv rau, lwm yam kab mob asymptomatic, xws li cov cim ceeb toom ntawm lub plawv nres, kuj tseem yuav kuaj pom nrog 6-cov khoom siv tshiab - ib yam dab tsi uas. EKG ib leeg tsis muaj peev xwm txheeb xyuas ...
Nyeem ntxiv