Matenda a covid-19: Pali mitundu ingapo, ndipo tikudziwa chiyani za iwo?
Mavairasi osiyanasiyana amachitika pakakhala kusintha - kapena kusintha - kumatenda amtundu wa virus. Ndiwo mtundu wa ma virus a RNA monga coronavirus omwe amasintha ndikusintha pang'onopang'ono. “Kupatukana pa malo kumapangitsa kuti pakhale mitundu yosiyana siyana,”.
Kusintha kwa ma virus - kuphatikiza coronavirus yoyambitsa mliri wa COVID-19 - sikatsopano kapena kosayembekezereka.
“Ma virus onse a RNA amasintha pakapita nthawi, ena kuposa ena. Mwachitsanzo, Mavairasi a chimfine amasintha nthawi zambiri, nchifukwa chake madotolo amalimbikitsa kuti mupeze katemera watsopano wa chimfine chaka chilichonse.”