Corona viruses are a big family of different viruses. Some of them cause the common cold in people and other infect from animals, like bats, camels and cattle, Corona virus enters in human cells through membrane ACE-2 receptor. WHO and ECDC advised – Avoid public place, follow social distancing and close contact to infected persons and animals. COVID- 19 is a corona series of viruses but it has changed all human life.

Keywords : Corona viruses, Covid-19, lockdown, Novel Corona Virus, Isolation, Quarantine, SARS—COV, Social distancing