Karelitz, a posdoctoral scholar at the UPMC Hillman Cancer Centers Cancer Epidemiology and Prevention Program, public health researchers use the term e-cigarette to refer to devices which electronically heat a liquid to create an aerosol for a user to inhale, but which do not contain actual tobacco
Ammonia-like or pungent: Less common, but some molds produce a sharper, almost chemical smell
Data shows that in 2010, over one million (1,181,589) cigarettes or cigarette filtersenough to fill 94,626 packswere removed from American beaches and inland waterways. Cigarette related litter is an enormous problem, both in the United States and worldwide
So, it seems that the patients positive smoking history (current and former smokers) can make them more susceptible to COVID-19
A blunt pencil or pencils will make thick marks certainly, thicker marks than a fine, sharp point