Researchers have solved the mystery of how the hepatitis C virus evades the immune system and spreads through the body: it puts on a "mask."

There's a link between a blood condition called clonal hematopoiesis of indeterminate potential, or CHIP, and protection against Alzheimer’s.

New research finds that if the parents or caregivers of a child under 16 die, the child's immune function is negatively affected later.

Bacterial blooms of a certain gut bacterium overlapped with flare-ups of systemic lupus erythematosus in a recent study.

People with Down syndrome have an extra chromosome 21. Understanding the effects of those triplicated genes could help improve the health of those with Down syndrome and other medical conditions.

An upgraded model shows how the body's immune response can make tumor cells more resistant to chemotherapy.

The gut microbiome plays a big role in mediating how the immune system responds to perceived threats, which include the body’s own nerves.

"The patients are sick not because of the virus," says Jean-Laurent Casanova. "They're sick because they excessively respond to the virus."

"The patients are sick not because of the virus," says Jean-Laurent Casanova. "They're sick because they excessively respond to the virus."

In experiments with cells, the PFAS chemical GenX suppressed the way white blood cells known as neutrophils kill invading pathogens.