In case of SARS-CoV, transmission is through droplet infection (respiratory secretions) and close person-to-person contact.[1112] It can also spread through sweat, stool, urine, and respiratory secretions.[13] When virus enters into the body, it binds to the primary target cells such as enterocytes and pneumocytes,[1112] thereby establishing a cycle of infection and replication. Other target cells of CoV are epithelial renal tubules, tubular epithelial cells of kidney, immune cells, and cerebral neuronal cells.[1112]