In rheumatoid arthritis, the immune system attacks the body’s own joints. Now, scientists have identified a protein that plays a critical role.

A treatment that combines cytokine "drug factory" implants with a checkpoint inhibitor drug eradicates advanced-stage mesothelioma tumors in mice in days.

Coinfections with bacteria can make viral infections even deadlier. Researchers have identified a protein in immune cells that may play a role in fighting both types of pathogens.

While a strong immune response is essential to fight against viral infection, an immune system that continues to stay active long after the virus has been cleared can lead to lung damage.

The co-development of three systems—the gut microbiome, respiratory system, and immune system—is correlated with a baby's respiratory health, research shows.

While the immune system naturally gets weaker with age, social stressors like trauma and discrimination can hasten immunosenescence.

A new study highlights another threat facing endangered koalas, but could also lead to ways to treat populations and reduce the risk of extinction.

Inflammation in the gums can increase susceptibility to other forms of inflammation, like arthritis, through changes in the bone marrow.