Smoking or vaping may put users at risk of a severe coronavirus infection.
Patanavanich, R., & Glantz, S. (2020). Smoking is Associated with COVID-19 Progression: A Meta-Analysis. Nicotine & Tobacco Research.
Liu, W., Tao, Z., Wang, L., Yuan, M., Liu, K., & Zhou, L. et al. (2020). Analysis of factors associated with disease outcomes in hospitalized patients with 2019 novel coronavirus disease. Chinese Medical Journal, 133(9), 1032-1038.