Could a bout of COVID protect you from a severe case of flu?

Could a bout of COVID protect you from a severe case of flu?

More than 200 viruses can infect and cause disease in humans; most of us will be infected by several over the course of a lifetime. Does an encounter with one virus influence how your immune system responds to a different one? If so, how? Does it weaken your defenses, boost them, or have some other … Read more