In House, M.D., what is Dr. Allison Cameron's medical specialty?

Dr. Allison Cameron’s medical specialty in House, M.D. is immunology.

Cameron is a member of House’s original diagnostic team and is played by Jennifer Morrison. Her specialty focuses on the immune system, making her particularly valuable when a patient’s symptoms suggest autoimmune disease, abnormal inflammation, or an unusual response to infection.

Cameron is characterized as compassionate and strongly concerned with the ethical treatment of patients. Those qualities sometimes put her at odds with House’s willingness to invade privacy or take dramatic risks. Her personal history, including the death of her first husband, also influences her empathy and her approach to difficult cases.

The character is sometimes described simply as a general doctor because she works across many diagnostic problems. In the show, however, immunology is her formal specialty. Cameron later takes different roles at the hospital, but her association with House’s first team remains one of the defining parts of her story.