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COVID -19 Overview

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The appalling COVID-19 pandemic outbreak has become a major cause of mortality in 2020. The COVID-19 is caused by a dreadful coronavirus called nCoV (SARS-CoV2). The term “coronavirus” (CoV) originates from the Latin term corona, which means “halo”/ “crown,” as the virus carries the crown-like projections (spikes) on its surface. Coronaviruses are a large group of viruses causing mild diseases to severe respiratory and gastrointestinal diseases. This review describes the overview of COVID-19, including the origin and reservoir of SARS-CoV2 and the genomic sequence of SARS-CoV2 compared to other coronaviruses. Furthermore, major events of the COVID-19 outbreak, reported confirmed cases, death cases, and case fatality rate (CFR) of covid-19 since its beginning until now, and different facts about fatally potential beta coronaviruses are also discussed in detail in this review

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