Comparison Review between Sars-Cov-2 and Different Types of Viruses

Abstract

In this paper, we will focus our attention on Coronaviridae, a family of RNA viruses consisting of a sub-family “Coronavirinae” which by its turn consist on four genera, namely Al-phacoronaviruses (αCoV), Betacoronaviruses (βCoV), Gammacoronaviruses (γCoV), and Del-tacoronaviruses(δCoV). Beta Coronaviruses comprise the three most patho-genic coronaviruses known to date: the severe acute respiratory syndrome virus (SARS-CoV), the Middle East respiratory syndrome virus (MERS-CoV), and the SARS-CoV-2 virus, responsible for the currently ongoing (since December 2019). Although these deadly Coronaviruses (CoVs) are posing dreadful threats to humans.

The mildly pathogenic viruses infect the upper respiratory tract and cause seasonal, mild to moderate cold-like respiratory diseases in healthy individuals. In contrast, the highly pathogenic SARS-CoV infect the lower respiratory tract and cause severe pneumonia, sometimes leading to fatal acute lung injury (ALI) and acute respiratory distress syndrome (ARDS),The pathogenic SARS-CoV have high morbidity 9 and mortality and pose a major threat to public health