2021 tau zoo li tsis muaj kev cia siab li xyoo 2020, raws li tus tswv tsev ntawm cov teeb meem tshiab yog qhov nyuaj rau cov khw muag khoom. Cov neeg lag luam yuav tsum nyob twj ywm agile thiab teb rau cov kev cov nyom qub thiab tshiab thaum sim ua ntau dua nrog tsawg dua. COVID-19 hloov pauv tsis tau hloov txoj hauv kev uas tib neeg nrhiav pom thiab khw - tam sim no ntxiv cov sib xyaw ua ke ntawm Omicron sib txawv, cov khoom lag luam cuam tshuam thiab…