lecture23

lecture23 - 20.106J Systems Microbiology Lecture 23 Prof....

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20.106J – Systems Microbiology Lecture 23 Prof. Schauer ¾ Animal- and Arthropod-transmitted Diseases ¾ Chapter 27 ¾ Galan and Wolf-Watz Review ¾ For next lecture: Review Ch. 28 and 29 ¾ Final exam: 8-9 questions, similar format to those on the tests ± Plague o Infectious disease of animals and humans ± Zoonosis: infection passed back and forth between humans and animals. Examples of diseases passed from animals to humans are rabies and tuberculosis There are also diseases passed from people to animals. Monkeys are very susceptible, for example. o Yersinia pestis o People usually get it from being bitten by a flea (vector) that carries it from a rodent (reservoir) o It’s a bad disease, but with modern antibiotics it can definitely be treated if it’s caught in time. ± Once it becomes advanced and starts replicating in the lungs therapy becomes less effective o Map: areas of the world where animals are commonly infected with plague ± The Western U.S. is one of these areas o Rat flea: Xenopsylla cheopis o There are usually a few thousand people a year who get the plague
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This note was uploaded on 11/11/2011 for the course BIO 20.010j taught by Professor Lindagriffith during the Spring '06 term at MIT.

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lecture23 - 20.106J Systems Microbiology Lecture 23 Prof....

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