being infected more than once exposes you to more health problems, study finds

Maskot/Getty Images

Maskot/Getty Images

The authors, however, acknowledged some biases in their study, including the fact that it mostly involved white, older men. Drawing.

People who have had Covid-19 more than once are more likely to have a series of serious health problems than those who have had it only once, according to a study published in the prestigious journal Nature, this Thursday, November 10.

This new study examines for the first time how reinfection increases the risk of health problems and long Covid. Because while repeat infections have increased as the virus has mutated in the past two years, the long-term effects of these reinfections on health remained very unclear.

The US researchers analyzed the anonymous medical records of 5.8 million people in the US Department of Veterans Affairs National Health Care Database. More than 443,000 people tested positive for Covid at least once between March 1, 2020 and April 2022.

Brain disorders, kidney diseases and diabetes

Among them, 41,000 had the Covid more than once. In detail, more than 93% had a total of two infections, while 6% had three and almost 1% had four. The remaining 5.3 million have never contracted Covid.

When the researchers compared the health outcomes of the different groups, they found that “People who were re-infected were at increased risk for all sorts of unwanted health problems”Ziyad Al-Aly, an epidemiologist at Washington University in St Louis and lead author of the study, told AFP.

Heart and lung problems, for example, were more than three times more common among people who had been reinfected. Reinfection also promoted brain disease, kidney disease and diabetes, according to the study. However, the authors recognized some biases in this study. Among them, the fact that it mainly concerned white and elderly men.

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