DEAR DR. ROACH: I’m a 67-year-old male who was recently diagnosed with diabetes. I have had both Moderna doses for COVID-19. I have read all along that people with diabetes are at a much higher risk for complications with COVID-19, and I’ve read that the breakthrough infections, for the most part, are not nearly as severe as those for nonvaccinated people. For those who have been vaccinated, have there been any studies showing that breakthrough infections are very dangerous for those with diabetes? — D.S.
ANSWER: There are two ways I could answer this question. The first is to say that for people who are fully vaccinated, having diabetes makes you both more susceptible to a breakthrough infection and makes you more likely to have a more severe case. This is why it’s important, even for vaccinated people, to continue to take reasonable precautions as long as there is ongoing transmission in your community. This is especially true for all people with risk factors, such as older age and immune system disease. Both obesity and diabetes are additional risk factors.