Coronavirus by name should belong to the genus Coronavirus, family Coronaviridae. Coronavirus infection is a respiratory infection that destroys and invades the epithelium of the respiratory tract. Coronaviruses are transmitted mainly by contact and respiratory droplets. Coronaviruses are now classified as a Category B infectious disease under our national law, but are treated as a Category A disease. These viruses are usually highly contagious, but with proper respiratory isolation and respiratory protection, this infection can be largely controlled, so there is no need to be particularly alarmed, as long as proper protection is in place coronaviruses have no chance of infecting the human body. It is only when droplets and particles of the virus are inhaled that infection occurs, if not inhaled there is no problem.