The CDC has been monitoring the coronavirus in Wuhan, Hubei Province, China since August of 2019. The virus did not make the news until December of 2019.
The virus causes respiratory illness. Virus can only live outside of the body anywhere from seconds to 48 hours.
The Mayo Clinic describes on how long a virus can live outside the body.
Cold and flu virus-laden droplets may remain infectious for several hours, depending on where they fall. Viruses generally remain active longer on stainless steel, plastic and similar hard surfaces than on fabric and other soft surfaces. Other factors, such as the amount of virus deposited on a surface and the temperature and humidity of the environment, also determine how long cold and flu viruses stay active outside the body.
It’s possible to catch the flu or a cold after handling an object an infected person sneezed or coughed on a few moments ago. But personal contact with an infected person — such as a handshake or breathing in droplets from a cough or sneeze — is the most common way these viruses spread.
The best way to avoid becoming infected with a cold or flu virus is to wash your hands frequently with soap and water or with an alcohol-based sanitizer. Also avoid touching your nose, mouth and eyes or biting your nails. Most importantly — get a flu vaccine every year.
So why are Chinese spraying their cities with some currently unknown chemical, though it is suspected to be bleach. Check out the videos, I see no smooth surfaces anywhere, so what is the point?