Some rheumatoid arthritis patients get no relief from even the strongest of anti-inflammatory drugs. New research suggests an explanation.

A new species of bacteria that doesn’t normally live in the gut may trigger an immune response so strong that it spreads to the joints.

Researchers have designed a protein that could keep the immune system in balance and prevent disease like arthritis and multiple sclerosis.

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

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

COVID-19 has taken away so much. An immunology researcher describes the good it may leave behind.

A new study finds vitamin D supplements with or without omega-3s decreased the risk of autoimmune diseases by 22 percent compared to placebo.

'Orphan drugs' with high price points are being tested as treatments for COVID-19. There's a better way to spur low-cost innovation for new drugs.

Newly discovered cells in the blood seem to indicate impending flare-ups of rheumatoid arthritis. Could they one day be a gauge of pain to come?