എസ്. സി. എസ്. ഹയർസെക്കണ്ടറി സ്കൂൾ തിരുവല്ല/അക്ഷരവൃക്ഷം/ CORONA VIRUS
CORONA VIRUS
Corona virus are the largest RNA viruses
They infect humans and animals in which they cause respiratory and
enteric diseases.Corona viruses cause about one third of "common colds" and the newly recognized
severe acute respiratory syndrome (SARS) In humans the major site of virus replication is the epithelial cells of the
respiratory tract about one third of the colds are caused by corona viruses. Incubation period : 2 to 14 days
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