It's is proved by experts. And doctors are also repeatedly requesting to public via YouTube or Facebook channels to quit smoking, because in present scenario about conona virus pendamic, it is dangerous to smoke. The risk of infection is too much high in smokers compared to non smokers, as the lungs becomes week by smoking tabacco and are not 100 percent functional. It is necessary to keep lungs in healthy condition by quitting smoking and to avoid getting infected by this Corona virus.The chances or recovery in non smokers is more compared to smokers.