https://archive.is/2AeIi https://archive.is/2AeIi > The researchers analyzed the health records to estimate the percentage of Covid patients who had long Covid

https://archive.is/2AeIi https://archive.is/2AeIi > The researchers analyzed the health records to estimate the percentage of Covid patients who had long Covid one year after being infected. The lowest rate of long Covid in the study, 3.5 percent, was among vaccinated people who were infected during the latest period in the study, between mid-December 2021 and January 2022. > That compares with a rate of 7.8 percent for unvaccinated patients in the study who were infected during the same period. > “We found that much of the decline is attributable to vaccination,” said the study’s lead author, Dr. Ziyad Al-Aly, the chief of research and development at the V.A. St. Louis Health Care System and a clinical epidemiologist at Washington University in St. Louis. ... > Among vaccinated people who had been infected, the rates of long Covid were markedly lower. Differences in variants and other aspects of the Delta and Omicron periods played a role, the authors said, but they attributed about 72 percent of the decrease to vaccines.