Because there is no specific anti viral vaccine is available therefore isolation is most effective measure for escape.
COVID -19 transmits through physical touch , aerosol , droplets etc.
So we must cover coughs and sneeze in public to prevent aerosol transmission.
Frequent hand wash with soap and water is required.
Hand sanitizer is also of use.
Isolation is the only key to decrease its spreading. It is spreading world wide at a alarming rate.
W.H.O. advised against close contact with patient, farm animals and wild animals because Humans are the terminal Host of COVID -19.