Yersinia pestis infection classification
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Differentiating Yersinia Pestis Infection from other Diseases |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Assistant Editors-In-Chief: Esther Lee, M.A.
Overview
Plague has different forms such as the pneumonic and the bubonic plague. Pneumonic plague can be transmitted from person to person; bubonic plague cannot. Pneumonic plague affects the lungs and is transmitted when a person breathes in Y. pestis particles in the air. Bubonic plague is transmitted through the bite of an infected flea or exposure to infected material through a break in the skin. Symptoms include swollen, tender lymph glands called buboes. Buboes are not present in pneumonic plague. If bubonic plague is not treated, however, the bacteria can spread through the bloodstream and infect the lungs, causing a secondary case of pneumonic plague.
Classification
Human Y. pestis infection takes various forms, the main three being pneumonic, septicemic, and bubonic. They can be listed as follows:
- Pneumonic plague
- Septicemic plague
- Bubonic plague
- Pharyngeal plague
- Meningeal plague