Rapid Spreading of SARS-CoV-2 Infection and Risk Factors: Epidemiological, Immunological and Virological Aspects

SARS-CoV-2, the third coronavirus associated with severe respiratory infections in humans, spreads more easily and quickly in the community, with a higher infectiousness rate compared to the other two betacoronavirus species (SARS-CoV and MERS-CoV).The SARS-CoV-2 pandemic, in which the number of cases worldwide has exceeded 30 million, has been the biggest global epidemic of the last century with serious concerns and socio-economic...