A disorder of structure or function in a human, animal, or plant, especially one that produces specific signs or symptoms or that affects a specific location and is not simply a direct result of physical injury
Capable of being transmitted from one person or organism to another by direct or indirect contact, typically through microorganisms such as bacteria or viruses
Not caused by or capable of being transmitted from one person or organism to another, typically referring to diseases or conditions that arise from genetic factors, lifestyle choices, or environmental exposures
A contagious viral infection characterized by a mild fever, rash, and swollen lymph nodes, especially dangerous to pregnant women as it can cause birth defects
A highly contagious bacterial infection of the respiratory tract characterized by severe coughing fits, often accompanied by a "whooping" sound when breathing in
A fungal infection caused by Candida species, typically affecting the mouth (oral thrush) or genital area (genital thrush), characterized by white patches or redness
Inflammation of the tonsils, typically due to a viral or bacterial infection, causing sore throat, difficulty swallowing, and swollen glands in the neck
A severe and potentially life-threatening allergic reaction characterized by rapid onset of symptoms such as swelling of the throat, difficulty breathing, and a drop in blood pressure