Coronavirus disease 2019 (COVID-19) - Structure
Origin - C ity of Wuhan, Hubei Province, Central China In early December 2019, numerous people with unknown causes of pneumonia were observed in Wuhan City, Hubei Province, Central China. Then, scientists studied the genome of the virus and named 'coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The primary (main) site of infection- The virus was identified in the respiratory tract of the patients Structure - SARS-CoV-2 is an enveloped, non-segmented, positive-sense RNA virus that is within the sarbecovirus, ortho corona virinae subfamily found in humans, and other mammals. It's about 65-125nm in diameter, containing single strands of RNA and provided with crown-like spikes on the outer surface. Structurally, it has four main proteins Spike (S) glycoprotein Small envelope (E) glycoprotein Membrane (M) protein Nucleocapsid (N) protein Each protein has its ow