Can COVID-19 vaccination help reduce the risk of developing type 2 diabetes after infection?

### Can COVID-19 Vaccination Reduce the Risk of Type 2 Diabetes? A recent study published in JAMA Network Open suggests that getting vaccinated against COVID-19 may reduce the risk of developing type 2 diabetes after a COVID-19 infection. Early in the pandemic, it was observed that people who recovered from COVID-19 had a higher chance of developing diseases like diabetes. This study confirms that the risk persists even with new variants like Omicron. Dr. Alan Kwan from Cedars-Sinai Health System notes that this trend is concerning because many people in the U.S. have been or will be infected with COVID-19. The study found that unvaccinated individuals had a higher risk of developing diabetes compared to those who were vaccinated. The research team analyzed medical records of nearly 24,000 adults treated for COVID-19 between March 2020 and June 2022. They looked at new diagnoses of diabetes, high blood pressure, and high cholesterol before and after the patients' first COVID-19 infection. The results showed that the rates of these conditions were higher in the 90 days following a COVID-19 infection. Specifically, the risk of developing type 2 diabetes was 2.1% overall, with unvaccinated individuals having a 2.7% risk and vaccinated individuals having a 1% risk. These findings suggest that COVID-19 vaccination may offer some protection against the risk of developing diabetes. However, more research is needed to fully understand the relationship between COVID-19, vaccination, and diabetes risk. Ongoing inflammation from COVID-19 may lead to insulin resistance and metabolic disruptions, increasing the risk of diabetes and other cardiovascular issues. Dr. Susan Cheng from Cedars-Sinai suggests that COVID-19 could act as a disease accelerator, causing individuals to develop diabetes earlier than they might have otherwise. Further studies are needed to explore these trends and the impact of factors like the severity of infection and the number of vaccine doses.