COVID-19 is a highly contagious viral illness caused by severe acute respiratory syndrome SARSCoV-2. It has had a devastating effect on the world-s demographics with high morbidity and mortality worldwide. After the influenza pandemic of 1918, it has emerged as the most consequential global health crisis. After the first cases of this predominantly respiratory viral illness were first reported in Wuhan, Hubei Province, China, in late December 2019, SARS-CoV- 2 rapidly disseminated across the world in a short span of time, compelling the World Health Organization (WHO) to declare it a global pandemic on March 11, 2020. The outbreak of COVID-19 has proven to be a worldwide unprecedented disaster. It has physically, psychologically, socially, and economically afflicted billions of people across the globe. Its transmission is significantly high. Serious postrecovery has been noticed in a large number of people. The virus is highly mutable and new and new strains are appearing, and many
