Bacillus: Difference between revisions
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Bacillus
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== Background == |
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=== Microbiology === |
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* Genus of non-branching, catalase [[Catalase::positive]] [[Gram stain::Gram-positive]] [[Shape::bacillus|bacilli]] |
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* Often over-decolorized |
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=== Identification === |
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{| class="wikitable" |
{| class="wikitable" |
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!Organism |
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⚫ | |||
!Width >1 μm |
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⚫ | |||
!Wide Zone Lecithinase |
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!Spores Swell Sporangium |
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!VP Test |
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!Ferments Mannitol |
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!Ferments Xylose |
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!Anaerobic Growth |
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|[[Bacillus anthracis]] |
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| |
| + |
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| + |
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|– |
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| + |
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|– |
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|– |
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| + |
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|- |
|- |
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|[[Bacillus cereus]] |
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| + |
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⚫ | |||
| + |
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|– |
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| + |
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|– |
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|– |
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| + |
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|- |
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|[[Bacillus subtilis]] |
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|– |
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|– |
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|– |
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| + |
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| + |
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| + |
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|– |
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|- |
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|[[Paenibacillus species]] |
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|– |
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|– |
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| + |
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|± |
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|± |
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|± |
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| + |
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|} |
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== Clinical Presentation == |
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{| class="wikitable" |
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⚫ | |||
⚫ | |||
|- |
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|[[Bacillus anthracis]] |
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|anthrax |
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|- |
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|[[Bacillus cereus]] |
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⚫ | |||
|} |
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Revision as of 14:18, 8 October 2020
Background
Microbiology
- Genus of non-branching, catalase positive Gram-positive bacilli
- Often over-decolorized
Identification
Organism | Width >1 μm | Wide Zone Lecithinase | Spores Swell Sporangium | VP Test | Ferments Mannitol | Ferments Xylose | Anaerobic Growth |
---|---|---|---|---|---|---|---|
Bacillus anthracis | + | + | – | + | – | – | + |
Bacillus cereus | + | + | – | + | – | – | + |
Bacillus subtilis | – | – | – | + | + | + | – |
Paenibacillus species | – | – | + | ± | ± | ± | + |
Clinical Presentation
Species | Disease |
---|---|
Bacillus anthracis | anthrax |
Bacillus cereus | food poisoning, central line infections |