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Vaccines may not prevent many symptoms of long covid, study suggests

Veterans Affairs analyzed records from nearly 34,000 people in U.S. who experienced breakthrough infections

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Updated May 25, 2022 at 11:25 a.m. EDT|Published May 25, 2022 at 11:00 a.m. EDT
Eve Efron, who has been struggling with long covid for nearly a year, goes through the pills and supplements she takes to help manage her symptoms in her home in Fairfax, VA on February 3, 2022. (Carolyn Van Houten/The Washington Post)
6 min

A large U.S. study looking at whether vaccination protects against long covid showed the shots have only a slight protective effect: Being vaccinated appeared to reduce the risk of lung and blood clot disorders, but did little to protect against most other symptoms.

The new paper, published Wednesday in Nature Medicine, is part of a series of studies by the Department of Veterans Affairs on the impact of the coronavirus, and was based on 33,940 people who experienced breakthrough infections after vaccination.