People who’ve both been vaccinated and had COVID-19 are less likely to report fatigue and other health problems than unvaccinated people.
continue to experience symptoms — such as fatigue, shortness of breath and even trouble concentrating — weeks, months or years after SARS-CoV-2 infection. Some estimate that up to 30% of infected people, including many who were never hospitalized, have persistent symptoms.
Vaccination reduces long COVID’s incidence by preventing people from getting infected in the first place. In theory, the shots could also protect against the condition by minimizing the length of time the virus has free rein in the body during breakthrough infections. But so far, the few studies that have looked into whetherhave had mixed results, says Akiko Iwasaki, a viral immunologist at the Yale School of Medicine in New Haven, Connecticut.
To examine the pandemic’s long-term effects, between July and November 2021, Edelstein and his colleagues asked more than 3,000 people whether they were experiencing the most common symptoms of long COVID. All had been tested for SARS-CoV-2 between March 2020 and the study period. The researchers compared the prevalence of each symptom to self-reported vaccination status and found that fully vaccinated participants who had also had COVID-19 were 54% less likely to report headaches, 64% less likely to report fatigue and 68% less likely to report muscle pain than were their unvaccinated counterparts.
Although the results of both the UK and Israel studies show that vaccination reduces the risk of long COVID, she says, even fully vaccinated people are still at risk of developing the condition. And whether vaccination protects people fromRegardless, Iwasaki says these findings are encouraging. “Long COVID is a terrible and debilitating disease. Any measures we can take to prevent long COVID are key to limiting more suffering in the future,” she says. “One more reason to get vaccinated.
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