COVID-19
COVID-19 (Novel corona virus) Covid an virus which belongs to orthocoronovirinae kindom which has classified further into 2 types coronavirinae and letovirinae in which coronavirinae is further classified into 4 types namely Alphacorona virus Betacorona virus Gammacorona virus Deltacorona virus Here alpha and beta human pathogens. History Once upon a time in 1930 corona was […]