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Severe acute respiratory syndrome coronavirus is a new infectious disease caused by a novel coronavirus (SARS-CoV-2) In February 2020 WHO renamed the disease to coronavirus disease 2019 (COVID-19) Coronaviruses belong to the family of Coronaviridae, order Nidovirales Scientists have visualized the appearance of the SARS-CoV-2 using microscopic techniques, which has a crown-likeshape and contains four structural proteins-S, E, M and N ACE2 (angiotensin converting enzyme 2) is a receptor to which SARS-CoV-2 virus particles bind The primary test to diagnose infection is the RT-PCR (Real time RT-PCR) Research is underway to identify vaccine against SARS-CoV-2 and therapeutic treatments for COVID-19
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