Vim qhov kev xav tau ntawm cov cawv thiab cov kuab tshuaj ntau ntxiv rau kev siv tshuaj tua kab mob thiab cov tshuaj pib los tiv thaiv COVID-19 thiab tso cai rau maj mam rov qhib kev lag luam thoob plaws ntiaj teb, cov nqi ntawm cov khoom siv no tau nce ntau heev.Yog li ntawd, tus nqi rau cov kuab tshuaj raws li cov kuab tshuaj thiab cov txheej txheem yuav tsum tau nce raws li.