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Capno and Strepto

Micro Unit VII

QuestionAnswer
How does Capnocytophaga relate to HACEK organisms? With what condition is it most commonly associated? Canpnocytophaga is similar to HACEK organisms in that it needs CO2 for growth enhancement. However, it more commonly associated with septicemia, not endocarditis.
What media is best for Capnocytophaga? What notable characteristic does it present on the agar? BAP and CHOC are best for culturing Capnocytophaga. It's most notable characteritic is it presents "Gliding Motility", where a haze of growth surrounds the colonies.
How is Streptobacillus moniliformia transmitted? What conditions does it cause? S. moniliformia can be acquired through a rat bite, causing "rate-bite" fever, or through the ingestion of contaminated milk, food or water, causing "Haverhill Disease".
What media does Streptobacillus moniliformia require and what does this media consist of? S. moniliformia requires molten or brain heart infusion media with yeast extract and 20% horse serum.
What Capnocytophaga species is of clinical significance and what are the biochemical reactions? C. ochracea is the species of clinical significance and is Oxidase (-), Catalase (-), Urea (-), Spot Indole (-), and Glucose Fermenter.
What tests can be used to identify Streptobacillus moniliformia and how can it be treated? S. moniliformia can be identified by Oxidase (-), Catalae (-), Nitrate (-), Indole (-), Motility (-), Urea (-), and LIA (-). Treatment of this organisms requires Penicillin and Streptomycin synergistically.
What disease does Capnocytophaga cause? How is this organism identified? Periodontal disease and sepsis in immunocompromised patients. Capnocytophaga is identified using Maldi-Tof and/or RapID ANA system.
Created by: jrzuck