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The Invasion of Bacillus

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NCSU
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Advanced
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biology
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North...

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documents in English
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presentations
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2 pages
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  1. Introduction
  2. Methods and materials
    1. The use of a Gram test
    2. The SIM test
  3. Results and discussion
    1. A Gram positive, spore-forming, rod shaped bacteria
    2. Bacillus cereus: A cousin to both anthrax and clostridium
  4. Conclusion
  5. Works cited

Beep? beep? click? click ? this just in: A pandemic breakout of unheard of proportions. Is it anthrax? Or clostridia? It could be, but authorities believe the culprit is Bacillus cereus (49133). B. cereus is a cousin strain to both Bacillus anthracis (anthrax) and Clostridia perfringens (clostridia). B. cereus is a gram-positive spore-forming and toxin-forming bacteria. Found in many starchy foods, like rice, this enterotoxin usually lasts for less than twenty-four hours. Since B. cereus is a spore producing organism, cooking food will not eliminate the threat of infection. Symptoms include abdominal pain, rectal spasm, diarrhea and nausea. Onset of these symptoms may occur 8-16 hrs after ingestion. If you, or someone you know, suffer from these symptoms, contact local health authorities immediately. Beep? beep? beep?

[...] The ability of the organism to ferment sugar could indicate the origin of the bacteria?such as bacteria from a poorly canned jam. This ability was tested with three Durham tubes. Both the tubes with sucrose and glucose showed acid formation which means the solutions changed from red to yellow, but no gas formation no gas bubbles in the Durham tube. The tube with Lactose showed neither acid nor gas formation. In order to conclude if the bacteria could be transmitted through urea, a Urease metabolism test was used. [...]


[...] The Invasion of Bacillus Introduction: Beep beep click click . this just in: A pandemic breakout of unheard of proportions. Is it anthrax? Or clostridia? It could be, but authorities believe the culprit is Bacillus cereus (49133). B. cereus is a cousin strain to both Bacillus anthracis (anthrax) and Clostridia perfringens (clostridia). B. cereus is a gram-positive spore-forming and toxin-forming bacteria. Found in many starchy foods, like rice, this enterotoxin usually lasts for less than twenty-four hours. Since B. cereus is a spore producing organism, cooking food will not eliminate the threat of infection. [...]

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