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Unit 7
Spirochetes
Question | Answer |
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What special stains are used for B. recurrentis, B. burgdorferi, and L. interrogans? | B. recurrentis: Giemsa, Wrights, or Acridine Orange B. bergdorferi: Warthin-Starry silver stain and Acridine Orange L. interrogans: silver impregnation |
What species causes "relapsing fever" and what transmits the disease? | Borrelia recurrentis louse or ticks |
Borrelia burgdorferi causes what disease and how would one know they have it? | Lyme disease In the first week they would have a bulls-eye around the deer tick bite |
What is a quick way to differentiate which bacteria caused rate bite fever? | Do a gram stain! Spirillum minor is a spiral GNR & Streptobacillus moniliforms is a normal GNR |
What are the media and growth requirements for Leptospira interrogans? | plated on Fletcher's Stuart's media at 30C for 6-14 days up to 6 weeks |
What can also be used to identify Spirochetes since they do not stain well? | DFA (direct immunofluorescence) |
What are the media and growth requirements for Borrelia burgdorferi? | plated on Kelly's media at 33C for 1 month |