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9 Cards in this Set
- Front
- Back
What is the most common type of new pathogen? Why?
Emerging pathogen: 2 examples? Re-emerging pathogens: 3 examples? |
Virus - simpler/smaller genome, quicker adaptations
new, never before seen pathogen Ebola, Chikungunya virus previously seen pathogens, thought gone: MRSA, resistant TB, influenza H5N1 |
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3 reasons why re-emerging pathogens come back?
What is antigenic drift? What pressures it? What is antigenic shift? |
develop resistance
decline in vaccination rates re-assortment from other species point mutations in serotype - antigens pressure (in mammals) whole gene change/rearrangement - species jumping |
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T/F: H5N1 is easily transmitted person-person.
_________ has high death rates in sub-Saharan Africa due to low vaccination. 199 people infected in 2006 with _________ from eating bad spinach: |
F
Measles E. coli O157:H7 |
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What should you not use on O157:H7 patients? (2)
Bacteria found in Hershey's chocolate in Canada, 2006: One major complication from Salmonella poisoning? Which emerging pathogen has the mosquito as a vector? |
Abx, anti-diarrheals
Salmonella Reiter's syndrome (can't see, can't pee, can't go out with me) Chikungunya virus |
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Bacteria only seen in chronic granulomatous disease patients, used for vinegar production, Gram(-) rod:
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Granulobacter bethesdensis
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35 y/o, traveled to Bangladesh, fever, diarrhea, G(-) rod, non-lactose, motile, H2S+:
30 y/o, sudden onset fever,abd pain, watery diarrhea; eaten crabs, diffuse abd tenderness: |
Salmonella typhi
V. parahemolyticus, halophilic species (high salt) |
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25 y/o on vacation in Mexico; abrupt watery diarrhea, abd cramps, fever/chills; no RBC's, WBC's, parasites in stool:
20 y/o, extensive purpuric rash, oliguria, weakness; bloody diarrhea, RBC's, no parasites, ate a hamburger: |
ETEC, probably EAEC
EHEC, E. coli O157:H7 |
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30 y/o in hospital, watery diarrhea, abd pain, N/V; on ampicillin 5 d.
What else might you see? |
C. difficile
Pseudomembranous colitis |
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19 y/o, abd cramps, bloody diarrhea, afrbile, ate undercooked chicken, occult blood +, G- S-shaped rods, microaerophilic:
15 y/o, ate fried rice, cramping/vomiting: |
C. jejuni
B. cereus, type I (emetic, heat stable) |