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Tag: Massachusetts General Hospital

Topic: long COVIDView all posts for the topic: long COVID

Long COVID may affect 1 in 6 infected patients

Published June 1, 2026

Still COVIDing Canada Posts

Published by: CIDRAP
Published on:
By Laine Bergeson

Long COVID may be affecting far more Americans than current estimates suggest, with a study published last week in JAMA Network Open estimating that roughly one in six people infected with SARS-CoV-2 develop the condition, and nearly 90% go on to experience chronic health problems.

For the study, a team led by researchers at Massachusetts General Hospital analyzed health record data from 457,950 adults treated for COVID-19 (also known as postacute sequelae of SARS-CoV-2 infection, or PASC) across 58 hospitals and clinics in New England, Southeast Texas, Southern California, and Western Pennsylvania.

The researchers identified long COVID cases by detecting symptoms and conditions that emerged after infection and could not be explained by preexisting conditions.

Continue readingLong COVID may affect 1 in 6 infected patients
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Topic: long COVIDView all posts for the topic: long COVID

COVID vaccination cuts risk of long-term symptoms in teens by over a third, data suggest

Published November 3, 2025

Still COVIDing Canada Posts

Published by: CIDRAP
Published on:
By Mary Van Beusekom

The risk of long COVID was 36% lower in adolescents vaccinated within 6 months before their first infection than in their unvaccinated peers, suggests an analysis of US Researching COVID to Enhance Recovery (RECOVER) trial data published late last week in Vaccine.

The study, led by Massachusetts General Hospital researchers, involved 724 adolescents aged 12 to 17 years who were vaccinated against COVID-19 within the previous 6 months and 507 unvaccinated youth matched on sex, symptom onset, and enrollment date.

Continue readingCOVID vaccination cuts risk of long-term symptoms in teens by over a third, data suggest
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