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by Dr.
AIMSIB , 5 Oct 2020
Introduction
COVID-19 appeared in Europe and the Americas in 2020, following the emergence of a new virus from China in 2019. This new virus belongs to the well-known family of coronaviruses that has already produced two particularly severe epidemics in 2003 and 2012. This new virus is called SARS-CoV-2, the third coronavirus responsible for severe respiratory distress syndrome. The severity of this syndrome is mainly characterized by hypoxemia, a lack of oxygen in the blood. We have found that this severe pulmonary impairment is seen in a relatively small number of patients infected with SARS-CoV-2, most of whom are asymptomatic or have only an influenza-like illness or even a common cold.
COVID-19 appeared in Europe and the Americas in 2020, following the emergence of a new virus from China in 2019. This new virus belongs to the well-known family of coronaviruses that has already produced two particularly severe epidemics in 2003 and 2012.
October 2020 
