Do vaccines affect long covid?

摘要

Being vaccinated reduces your chance of getting long covid, which can involve a variety of symptoms that persist for weeks or months after an infection with coronavirus. The benefits of vaccination in reducing the risk of getting long covid can be seen even if people get infected after having a shot. There is also evidence that vaccines reduce the severity of symptoms in most people who already have long covid, but in a minority their symptoms worsen. While various studies are getting under way, so far there is almost no published evidence on the relationship between long covid and vaccination. "We do not yet know to what extent covid-19 vaccination can prevent long covid," says Annika Jodicke at the University of Oxford, whose team will use data from the UK's National Health Services to try to answer this question.