Dear Dr. Mahler,

I am 64 and have had COPD for about 3 years. I received two COVID vaccines this past spring, but have been reading about breakthrough infections. Even though I follow all of the recommendations to prevent exposure to the COVID-19 virus, I am worried that I will get really sick because of my COPD if I get infected. Stories on the news mention the importance of the immune system. Is there anyway that I can boost my immune system to reduce my chances of a bad outcome?

Thanks,
Sarah from Williamsburg, VA