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In the past year, we learned more and more onHow to protect themselves ourselves Coronavirus masks through, social distancing, and now, vaccinations. Those who havealready had Covid And survived have learned that they would be at least a little protected thanks to the immunity that comes from the earlier infection. Unfortunately, the virus can always find it, and there is no way to be 100% away from coronavirus.Revolutionary infections Have been reported after vaccinations and people who have already had Covid have been reinfected. Researchers are now trying to decipher cases of common reinfection. According to a new study, one of the similarities between people who get Covid again is that almost all have at least two comorbidities.

RELATED:The CDC says that vaccinated people who get COVID have in common.

A new pre-printed study on June 13 on Medrxiv looks atCharacteristics of COVID patients which have been positive tested for the virus more than once. Researchers have drawn clinical and test data for 23 patients from a large US health record database. Patients had positive test results of at least 60 days apart and separated by at least two consecutive negative test results, which states that it was a case of reinfection, no cases in which people had prolonged COVID infections.

According to the study, 96% of these reinfected patients had two or more comorbidities, which is the simultaneous presence of diseases or medical conditions within a patient. In this study, 70% of patients had a hypertension, 26% had cardiovascular disease, atrial fibrillation or chronic renal disease, and 22% had type 2 diabetes or a venous thromboembolism history or long-term anticoagulation. . These are allConsidered risk factors for COVID by the disease control and prevention centers (CDC).

"Based on what we know about similar viruses,Some reinfections are expected. We are always learning more about COVID-19, "said CDC in a statement on its website. However, the Agency added that while CASES of the reinfection of Covid has been reported, they remain rare. "

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But have two or more comorbidities is not the only characteristic shared in patients who get COVID more than once. Researchers also found that 61% of reinfected patients were overweight or obesity, 83% had immunized compromise conditions and 83% also smoked in the previous year. The average age of reinfected patients was about 64 to 65 years.

"Our study has shown a strong prevalence of immune compromises, comorbidities, obesity and smoking in patients with tests of SAR-COV-2 repeatedly," said researchers.

RELATED:If you take medications for that, you can still need a mask, "said CDC..