One of the largest studies of re-infection with covid-19 revealed that people who have been infected more than once are more likely to develop a series of serious health problems than those who have not been infected just once. Repeat infections for her It increases as the virus mutatesbut Archaeology The long-term effects of this infection on health remained unclear until then.
This study was published in the journal NatureMedicine It examines for the first time how re-infection increases the risk of health problems and long-term COVID-19. US researchers analyzed the anonymous medical records of 5.8 million people in the National Health Care Database of the US Department of Veterans Affairs.
more 443,000 people have tested positive for Covid At least once between March 1, 2020 and April 2022. Of these, 41,000 have contracted COVID-19 more than once. In detail, over 93% in all had two injuries, while 6% had three and about 1% had four. The remaining 5.3 million never contracted Covid.
When researchers compared the health outcomes of the different groups, they found that “people who were re-infected Increased risk of all kinds of problems “Adverse health effects,” Ziad Al-Aly, an epidemiologist at Washington University in St. Louis and lead author of the study, told AFP.
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