Introduction. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spreads mainly by inhalation of airborne viral particles.

Is COVID-19 caused by a virus or a bacteria?

The coronavirus disease (COVID-19) is caused by a virus, NOT by bacteria.

What is the COVID-19 disease?

COVID-19 is a respiratory disease caused by SARS-CoV-2, a new coronavirus discovered in 2019. The virus is thought to spread mainly from person to person through respiratory droplets produced when an infected person coughs, sneezes, or talks. Some people who are infected may not have symptoms.