Tonsillitis itself is not contagious. However, “the viruses and bacteria that cause tonsillitis are highly contagious and can ...

Some are undergoing further tests. By Apoorva Mandavilli and Emily Anthes A possible cluster of bird-flu infections in Missouri has grown to include eight people, in what may be the first examples ...

Life-threatening fungal infections are on the rise in the United States. Their growth has been described as "alarming" by the U.S. Centers for Disease Control and Prevention (CDC,) with one ...

While you develop some immunity after a COVID infection, it doesn’t just grow with each additional hit. You might be thinking, “Aren’t I more protected against COVID and less likely to have ...