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24 Cards in this Set
- Front
- Back
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Scientific name
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Clostridium perfringens
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Disease name
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Gas gangrene
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Domain
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Bacteria
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Prokaryotic/Eukaryotic?
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Prokaryotic
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Gram stain and Morphology
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Gram positive, Bacillus
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Spores? If yes, what kind?
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Yes, Endospores
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Motility? If yes, how?
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Non-motile
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Oxygen requirements
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Obligately anaerobic
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Distinguishing Features
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Most common cause of gas gangrene. Vegetative cells are killed when cooked; however, spores may still remain. Will not grow at refrigeration or freezing temperatures.
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Pathogenic Properties
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Grows in dead and poorly oxygenated tissue, releases alpha-toxin that kills cells
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Geographic occurrence
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Worldwide (expect in N. African desert)
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High RIsk Individuals
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People with exposed skin with reduced oxygen supply
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Reservoir
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Spores in soil; GI tracts
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Parts of body infected
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skin tissues
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Method of transmission
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Spores from soil enter deep wounds
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Portals of entry
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Deep wounds, surgical infections, improper abortions
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Incubation period
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1-5 days
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Period of illness
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Until treated
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Contagious period
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Not Contagious
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Symptoms
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Tissue necrosis, foul smell from wound
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Serious complications
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Sepsis, toxemia, shock
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Diagnostic Methods
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Gas and foul smells from wound, culture
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Prevention
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Proper food handling; surgical removal of retroactive tissue and amputation; create oxygen exposure
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Vaccine?
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No
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