Twice as many people as previously believed die of sepsis worldwide—and a disproportionately high number of them are children.

Pancreatic cancer cells can sabotage the immune system's response, but blocking the signal could kickstart the fight against tumor cells.

Adenoviruses need one protein to unpack their DNA to infect human cells and without it, the infection fails. The finding could lead to new antivirals.

The first strain of flu virus we encounter during childhood sets the course of how our immune system responds to exposures later in life.

Scientists may have figured out why a universal flu vaccine has remained so elusive: our immune cells' faulty memory.

In a new study, people in middle age who had higher amounts of fat in their mid-section had worse fluid intelligence as they got older.

Radiation for brain cancer can kickstart an immune system response that severs connections between nerve cells, research in mice shows.

A class of biologics called TNF inhibitors cause serious side effects among people with autoimmune disorders like RA and Crohn's. New research may explain why.

Altering the microbiota may be a way to stave off chronic inflammatory diseases that affect the digestive tract, including IBD and Crohn's disease.

A new study links "bad" cholesterol at fat in a newborn's umbilical cord blood with teacher ratings of their mental health at about five years of age.