Infection Prevention and Control of Microbes

A disease is an abnormal condition, a disorder of a structure or function that affects part or the organism entirely. The study of disease is called pathology which includes the study of cause of the disease. Disease is often construed as a medical condition associated with specific symptoms and signs. Detection of a specific agent for an infection or a health problem is done in clinical presentation.  It may be caused by external factors such as pathogens, or it may be caused by internal dysfunctions particularly of the immune system such as an immunodeficiency, or a hypersensitivity including allergies and autoimmunity.