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bacterium |
A small, typically one-celled, prokaryotic Microorganism.
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toxic organism |
The Class of Organisms which are poisonous to other Organisms.
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bacillus anthracis | The Bacterium which causes the disease Anthrax. Humans may become infected with Anthrax via contamination of a wound or by inhaling the Bacterium. When it is inhaled, the disease is often fatal if not treated early (see InhalationalAnthrax). |
| | bacillus cereus | A Bacterium that is closely related to and often found near BacillusAnthracis, the Bacterium that causes Anthrax. BacillusCereus causes two forms of food poisoning, one characterized by diarrhea and the other by vomiting. In most cases the disease is not life-threatening. |
| | bordetella pertussis | The Bacterium that causes Pertussis. |
| | brucella bacterium | The Bacterium which is responsible for the disease Brucellosis. This class covers Brucella Abortus (which infects humans and cattle), Brucella Melitensis (which infects sheep, goats, and humans), and Brucella Suis (which infects pigs). |
| | burkholderia mallei | The Bacterium that causes the disease Glanders. It is transmitted to humans by direct contact with infected animals. The bacteria enter the body through the skin and the mucosal surfaces of the eyes and nose. |
| | burkholderia pseudomallei | Formerly known as Pseudomonas Pseudomallei, this is the Bacterium that causes Melioidosis. |
| | chlamydia psittaci | The Bacterium that causes Psittacosis. |
| | clostridium botulinum | The Bacterium that produces BotulinumToxin. |
| | clostridium perfringens | Bacterium often found in the intestines of Animals. Ingesting this Bacterium can result in Perfringens food poisoning, which can attack internal organs and lead to gangrene. |
| | clostridium tetani | The Bacterium that causes the disease Tetanus. |
| | corynebacterium diphtheriae | The Bacterium that secretes a Toxin that causes Diphtheria. |
| | escherichia coli0157 h7 | One of hundreds of strains of the Escherichia Coli Bacterium. This strain lives in the intestines of healthy cattle, but it can cause severe illness when ingested by humans. |
| | francisella tularensis | The Bacterium that causes the disease Tularemia. Also known as Pasturella Tularensis. The Bacterium has two strains, Jellison type A (F. tularensis biovar tularensis) and type B strains (F tularensis biovar palaearctica), and it is infectious with a dose as small as 50 cells per milliliter. |
| | giardia lamblia | A Bacterium that causes Gastroenteritis. It is present in many streams and lakes, and it is carried by beavers and other animals. |
| | legionella | The Bacterium that causes Legionellosis, which is known as LegionnairesDisease (when it infects the lungs) and PontiacFever (when it doesn't affect the lungs). |
| | mycobacterium tuberculosis | The Bacterium that causes Tuberculosis. |
| | neisseria gonorrhoeae | The Bacterium that causes Gonorrhea. |
| | rickettsial agent | BiologicalAgents that are rickettsial organisms, i.e. gram-negative bacteria that infect mammals and arthropods. |
| | salmonella partyphi | Causes a less severe illness than SalmonellaTyphimurium. |
| | salmonella typhi | The Bacterium that causes TyphoidFever. |
| | salmonella typhimurium | A bacterium that can cause death in young, elderly or immunodeficient people. It appears in the stool of infected people. |
| | serratia marcenscens | A Bacterium that can cause death in infected Humans. |
| | shigella dysenteriae | Causes severe dysentery (even when as little as 100 bacteria are ingested). This form of dysentery results in death in 10-20 percent of infections. |
| | staphylococcus aureus | A bacterium that secretes StaphylococcalEnterotoxicB. It causes chills, headache, muscle pain, coughing (which may last for weeks), and sudden fever of up to 106 degrees (which may last for days). It occasionally causes nausea, vomiting, and diarrhea. |
| | streptococcus a | The Bacterium that causes strep throat, scarlet fever, and necrotizing faciitis (flesh-eating bacteria). |
| | vibrio cholera | The Bacterium that is responsible for Cholera. |
| | yersinia pestis | The Bacterium that causes Plague. |
| | yersinia pseudotuberculosis | Causes a disease whose symptoms include diarrhea, fever, headache, skin ulcers, and post-infectious arthritis. |