These droplets are too heavy to travel far in the air; they only travel approximately one metre and quickly settle on surfaces.
As such, person to person spread is happening mainly between close contacts. The exact time the virus can survive on surfaces is not yet known.
So it is wise to clean surfaces regularly, particularly in the vicinity of people infected with COVID-19.
Meanwhile, hands touch many surfaces, which can be contaminated with the virus.
You should therefore avoid touching your eyes, nose or mouth, since contaminated hands can transfer the virus from the surface to yourself.
When coughing or sneezing, cover your mouth and nose with the bend of your elbow or use a disposable tissue.
If a tissue is used, discard it immediately into a closed bin.
The most effective way to prevent the spread of the new coronavirus is to clean your hands frequently with an alcohol-based hand rub or soap and water. This will eliminate the virus if it is on your hands.
Watch here key facts on COVID-19 by WHO: