The four community-acquired HCoVs causing moderate symptoms have adapted well to humans.
Virusi vipya vya 2019 vya HCoV (2019-nCoV), ambavyo baadaye vilipewa jina SARS-CoV-2, ndivyo ajenti sababishi wa janga linaloendelea la ugonjwa wa virusi vya korona 2019 (COVID-19), ambalo limewauwa zaidi ya watu 3,120 na kuwaambukiza zaidi ya watu 91,000 kufikia tarehe 3 mwezi Machi 2020.