What are coronaviruses?

Coronavirus: Coronaviruses are common viruses that most people get some time in their life. Coronaviruses are named for the crown-like spikes on their surface. Human coronaviruses usually cause mild to moderate upper-respiratory tract illnesses.

Coronaviruses: There are 4 coronaviruses that cause the common cold. 1 Coronavirus caused the Severe Acute respiratory Syndrome and a second Coronavirus caused Middle Eastern Respiratory Distress Syndrome. Now, we have a new coronavirus that has caused COVID 19.

Group animal viruses: This a group of viruses that primarily infect animals but with time and close proximity, they are capable of mutating so that they some of them may infect humans as well. A virus consists of a small piece of nucleic acid surrounded by a protein capsule. Viruses cannot survive long outside living cells