A study funded by the National Institute for Health and Care Research (NIHR) has found that vaccination against Covid-19 consistently reduced the risk of lingering long-term symptoms.
Researchers from the University of Oxford and Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences (NDORMS) examined data from more than 20 million people from the UK, Spain and Estonia. Some had been vaccinated and others had not.
People were defined as having long Covid if they had experienced at least one of 25 WHO-listed symptoms between 90 and 365 days after the date of a positive PCR test or clinical diagnosis of the virus, or had no history of that symptom 180 days before they were infected with Covid-19.
