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Critical care doctor: ".. it is highly likely that cigarette smoking and vaping will increase the risk of coronavirus pneumonia and increase its severity, though we don’t know to what extent.”

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  • Critical care doctor: ".. it is highly likely that cigarette smoking and vaping will increase the risk of coronavirus pneumonia and increase its severity, though we don’t know to what extent.”


    Dr. Michael Matthay, the associate director of critical care medicine at UCSF, said cigarette smoking or vaping can increase the risk of developing coronavirus. “Based on prior studies with other pulmonary infections, both bacterial and viral, it is highly likely that cigarette smoking and vaping will increase the risk of coronavirus pneumonia and increase its severity, though we don’t know to what extent.”

    Matthay said they’ve seen in studies that nicotine inhaled into the lungs of mice can delay the clearance of the influenza virus, indicating that nicotine could also delay the clearance of the novel coronavirus.

    This helps explain the initial suspicion that men seemed more susceptible to the disease in the cases in China, since Chinese men are more likely than women to be smokers. A World Health Organization study from 2019 found that 47.6% of Chinese men smoke, compared to only 1.8% of Chinese women.

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