Covid-19: A Hypothetical View on Infection

Abstract

Coronaviruses are a large group of related RNA viruses causing illness in animals or humans [1]. In humans, several coronaviruses cause respiratory infections ranging from mild such as common cold to more severe diseases with a possible lethal outcome, such as Severe Acute Respiratory Syndrome (SARS), Middle East Respiratory Syndrome (MERS ) and Coronavirus Disease 2019 (COVID-19 )