എസ്. സി. എസ്. ഹയർസെക്കണ്ടറി സ്കൂൾ തിരുവല്ല/അക്ഷരവൃക്ഷം/ CORONA VIRUS

CORONA VIRUS Coronavirus 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. The symptoms are runny nose, sore throat, cough, headache, fever, chills Incubation period : 2 to 14 days Transmission is by transfer of nasal fluids such as aerosols caused by sneezes Virus classifications: (unranked):Virus Realm:Riboviria Phylum:incertae sedis Order:Nidovirales Family:Coronaviridae Subfamily:Orthocoronavirinae,Genera,Alphacoronavirus,Betacoronavirus,Gammacoronavirus,Deltacoronavirus,Synonyms,Coronavirus iഗ്രേസി മറിയം ചെറിയാൻ 8 B എസ്. സി. എസ്. ഹയർസെക്കണ്ടറി സ്കൂൾ തിരുവല്ല തിരുവല്ല ഉപജില്ല പത്തനംതിട്ട അക്ഷരവൃക്ഷം പദ്ധതി, 2020 ലേഖനം