MEDRADSC 1B03 Lecture Notes - Lecture 8: Opportunistic Infection, Human Microbiota, Sepsis
Document Summary
Discuss the term resident flora (indigenous or normal flora) and opportunistic infection. Many microorganisms live in various areas of the body (without harm) Most are beneficial to us in certain areas in the body. If balance is disrupted, microorganisms can cause diseases: opportunistic infection. Identify the major areas in the body, which are considered sterile, and others have normal flora present. Define the terms reservoir and carrier in the transmission of infectious agents. Carrier: source of infection, no symptoms, but capable of transmission. Nosocomial infections: infection acquired during hospitalization, presence of many microorganisms in the health care settings. Identify factors that decrease host resistance to infection. Discuss the term mutation and its relation to superbugs . Vaccines or drugs are unlikely to be effective against new form. Identify the cause of necrotising fasciitis (flesh eating disease). bacteria develop new strains that have caused life-threatening infections. Highly invasive secreting protesases enzymes break down tissue produce a toxin-causing shock.