About Coronaviruses
Coronaviruses are common in different animals. Rarely, an animal
coronavirus can infect humans. These virus are named for their
appearance, because under the microscope, the viruses look like they
are covered with pointed structures that surround them like a crown.
There are many different kinds of coronaviruses. Some of them can
cause colds or other mild respiratory (nose, throat, lung) illness.
Other coronaviruses can cause more serious diseases, including
severe acute respiratory syndrome (SARS) and Middle
East respiratory syndrome (MERS).