Human Papillomaviruses

Introduction Papillomavirus is one of two genera in the Papovaviridae family. The viruses in this category, however, vary significantly from those in the other genus, Polyomavirus, in terms of genome size, organization, and pathogenesis. Papillomaviruses (Latin: papilla = ‘nipple’; oma = ‘tumour’) cause benign skin tumors (papillomas) in their hosts, which contain varying quantities of …

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Pathogenesis of COVID-19

Coronaviruses (CoVs) are a community of Nidovirales viruses that includes the Coronaviridae, Arteriviridae, Mesoniviridae, and Roniviridae families. CoVs are members of the Coronavirinae subfamily of the Coronaviridae family of the order Nidovirales, which consists of four genera: Alphacoronavirus, Betacoronavirus, Gammacoronavirus, and Deltacoronavirus. Viruses belonging to the Nidovirales order and are enveloped, non-segmented positive-sense RNA viruses. …

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