The COVID-19: Current understanding.

In December 2019, China reported several cases of a new coronavirus disease (COVID-19). The COVID-19 outbreak, which was initially limited to Wuhan, China, has rapidly spread worldwide. Infection of the disease occurs through exposure to the virus through inhalation of respiratory droplets or if a person touches a mucosal surface after touching an object with the virus on it. The common symptoms of COVID-19 are fever, dry cough, dyspnea (difficult or labored breathing), fatigue, chest pain, and myalgia (muscle pain), etc. Real-time polymerase chain reaction is used to detect the virus in sputum, throat, nasal swabs, and secretion of lower respiratory samples. Early diagnosis, isolation, and supportive care are necessary for the treatment of the patients. The present review aims to provide recent information on COVID-19 related to its epidemiology, clinical symptoms, and management. This article also summarizes the current understanding of severe acute respiratory syndrome coronavirus-2 and its history of origin.