> “You can certainly get both the flu and Covid-19 at the same time, which could be catastrophic to your immune system,” said Dr. Adrian Burrowes, a family medicine physician in Florida. > In fact, getting infected with one can make you more vulnerable to getting sick with the other, epidemiologist Dr. Seema Yasmin said. > “Once you get infected with the flu and some other respiratory viruses, it weakens your body,” said Yasmin, director of the Stanford Health Communication Initiative.