Hla mus rau cov ntsiab ntsiab lus

Kev khiav tag nrho ntawm tus naj npawb ntawm WNV cov pas ntsuas ntsuas tau sau rau cov xyoo xaiv uas muaj tsawg kawg yog ib qho yoov tshaj cum uas kuaj pom zoo rau WNV.

Ceeb toom: Tsuas yog ib qho yoov tshaj cum hauv ib lub pas dej yuav tsum kuaj qhov zoo rau WNV rau tag nrho lub pas dej kom pom tau tias zoo.