How the Virus Transmits

COVID-19 transmits directly through infective respiratory droplets, i.e. droplet particles having a diameter of 5 to 10 micrometers. Droplet transmission occurs when you are in close contact (within 1 meter) with an infected individual. The transmission can also occur indirectly when you make contact with surfaces and objects that may have been used by, or exist in the environment of, an infected person. Some studies also show that these droplets can travel as much as 27 meters.

Air-borne transmission is yet another possibility; this occurs through aerosols i.e. droplets with a diameter of less than 5 micrometers, which can remain in the air for about 3 hours. Although there is insufficient research to suggest that COVID-19 is airborne, the virus may remain in the air for longer periods in certain areas that lack proper ventilation.