1 in 3 young adults are vulnerable to severe coronavirus infections, a new study suggests. Smoking could be to blame.

1 in 3 young adults are vulnerable to severe coronavirus infections, a new study suggests. Smoking could be to blame.

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• One in three young adults have at least one risk factor that could result in severe COVID-19 infections, a new study found.
• The researchers determined that smoking was the most prevalent risk factor for people in th…

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