While gut bacteria have been credited with boosting the body’s immune system, bacteria in the lungs may play a more direct role in protecting their own backyard.

Where will the next seasonal flu virus come from? Michigan researchers look at how the virus evolves inside sick people for clues.

A new model analyzes a wealth of information to better predict which patients are more prone to the dangerous infection.

A new mouse study examines the fungus that causes cryptococcosis, which is a major source of illness in people with HIV and AIDS.

PICCs should be reserved for long-term use, but a new study shows 1 in 4 are inserted for five days or less with 1 in 10 of these leading to device-related complications.

Halting the voyage of gut bacteria to the brain could help prevent harmful brain inflammation after a sepsis infection, a new study shows.