Can you get the flu twice during the same season? Yes, and certain people are at higher risk, experts say. Here's how ...

Exposure to B. bassiana fungus activated Toll receptors, leading to cell death throughout the fly brain. A new study ...

Veteran vaccine researcher Arturo Casadevall gives a podcast primer on vaccinations, from how they work on a molecular level to common misconceptions ...

Researchers identify a new player in human immunity that can go rogue and turn the immune system against the body’s own ...

With flu season in full swing, strengthening your immune system has never been more important. While no food is a magic cure, ...

Stephanie Mauro, now 76 years old, has had multiple sclerosis for more than 40 years. In 2020, when COVID-19 first appeared in the United States, her condition had worsened to the point where her ...

What are the lasting impacts of RSV, and how can you prevent your infant from getting the infection? Dr. Stephania Cormier is ...

Vatican authorities said Monday that Pope Francis is suffering from a “polymicrobial respiratory tract infection.” Experts ...

New research finds antidepressants like Prozac can also protect against serious infections and sepsis. Scientists at the Salk ...

Norovirus infection rates are extremely high this year, raising the question: Why can’t a vaccine protect us from the stomach ...