06fexam3 - Microbiology Laboratory Biology 203/402 Third...

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Microbiology Laboratory Nam e___________________ Biology 203/402 Third Examination TA’s____________________ Fall, 2006 Multiple Choice: Answers may be used more than once a. Salmonella b. Shigella c. Escherichia d. Streptococcus e. Staphylococcus 1. At least 50 people developed severe gastroenteritis (diarrhea) recently, following eating scallions (green onions) at Taco Bell. The Food and Drug Administration labs observed an organism, associated with scallions, which was a Gram negative rod that produced an orange color on Hektoen agar. After running the IMViC tests, it was observed the organism was indol +. The FDA concluded the organism was a pathogenic strain of ___________________. 2. In 2005, state labs in Kansas, Kentucky, and Missouri reported severe cases of diarrhea in children in daycare centers, due to infection from a multi-drug resistant Gram negative rod. There were 201 confirmed cases in Kansas. Lack of handwashing was cited as a major risk factor. This organism yielded a red slant and yellow butt with no gas on TSIA, and was negative for motility. The organism likely was _________________. 3. A surfer scraped the skin off his shin, having run into the fin after falling off his board. Continuing to go into the water daily, without allowing the skin to heal properly, the wound became infected with a Gram positive coccus. The organism was multi-drug resistant, the possibility of amputation was discussed, and the surfer required several months of intravenous antibiotics to recover. The Gram + coccus was catalase +, beta hemolytic, and DNase positive. The surfer was suffering from a ________________ infection. 4. Students visiting a petting zoo handled young goats and ate their sandwiches without handwashing. Many of the students developed diarrhea. A Gram negative rod was isolated which appeared translucent on Hektoen agar, with black centers. The organism likely was ___________________. 5. A student visited Watkins with a severe sore throat. His throat was swabbed and a rapid agglutination test was performed. The student was positive for Group A ______________________. Multiple Choice:
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This test prep was uploaded on 04/17/2008 for the course BIOL 402 taught by Professor Faurot during the Spring '08 term at Kansas.

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06fexam3 - Microbiology Laboratory Biology 203/402 Third...

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