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Is the Delta variant more transmissible outdoors?

Outdoor transmission of COVID-19 has been rare with previous strains of the virus. But as the hypercontagious Delta variant continues to drive up cases in some areas of the country, many have begun to wonder if this variant is more transmissible outdoors. As Labor Day approaches and many Americans plan to have outdoor gatherings, the question has become more urgent.  Dr. Diego Hijano, an infectious disease specialist at St. Jude Children’s Research Hospital, explains what we know so far about Delta’s transmissibility outdoors and how you can best protect yourself against it.

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