MEDRADSC 1B03 Lecture Notes - Lecture 9: Human Microbiota, Opportunistic Infection, Fallopian Tube
3 Sep 2018
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Document Summary
Bacteria that are supposed to be living in/on you. Many microorganisms live in various areas of the body (without harm) There is a balance in these communities; if the balance is disrupted, microorganisms can cause disease which is called an opportunistic infection. Sterile area (where you should not find natural flora) Carrier: source of infection, but there are no symptoms, capable of transmission. Aerosol transmission involving small particles from the resp tract that remain suspended in the air & travel on air currents, infects any host that inhales them. Droplet transmission involves airborne microorganisms being inhaled by another host. Contact involving an intermediary such as a containimated hand or food. Fomite = inanimate object that someone has sneezed/coughed on & you have touched: vector-borne. When an animal/insect serves as the mode of transmission. Interferon production = how we are able to shut down viruses from replicating. Decrease host resistance if they produce exotoxins & endotoxins.
