Loma Linda University Health research shows that those who smoke are at greater risk of contracting infectious disease and spreading infectious disease. Studies conducted in Laos and Cambodia revealed the use of tobacco increases a person’s susceptibility and transmission of infectious disease due to the frequent sharing of smoking tools and destruction of mucociliary function […] Source: https://atoday.org/two-studies-say-smokers-at-higher-risk-for-infectious-disease/