Virology

Human Papillomaviruses

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…

Pathogenesis of COVID-19

Pathogenesis of COVID-19

Coronaviruses (CoVs) are a community of Nidovirales viruses that includes the Coronaviridae, Arteriviridae, Mesoniviridae, and Roniviridae families. In the genus Coronaviridae, the Coronavirinae is one of two subfamilies, the other being the Torovirinae. The Coronavirinae family is further divided into four genera: alpha, beta, gamma, and delta coronaviruses. Both viruses belong to the Nidovirales order…