HistoryThis section has been translated automatically.
First described by Lehmann and Neumann, 1899
DefinitionThis section has been translated automatically.
Pasteurella are Gram-negative, rod-shaped or coccoid, facultatively anaerobic, immotile, and non-spore-forming bacteria. They differ from Enterobacteriaceae in the presence of oxidase and from most similar bacteria in the absence of flagella.
A peculiarity lies in their staining behavior: the polar cap-like reinforcement of the cell body. The most important representative of the genus is
Pasteurella multocida
rarer are:
- P. dagmatis
- P. canis
- P. haemolyticus.
You might also be interested in
OccurrenceThis section has been translated automatically.
Particularly at risk are owners of pets or occupationally exposed persons.
PathophysiologyThis section has been translated automatically.
All Pasteurellae are commensals in the respiratory tract of animals, rarely of humans. Aerobic, microaerobic to facultative anaerobic species exist. The facultative anaerobic species can live in complete oxygen exclusion, whereas the microaerobic ones show the best growth rates.
Clinical pictureThis section has been translated automatically.
After an incubation period of 2-14 days (depending on the site of entry of the pathogen), sometimes even after a few hours, erythema and pain appear in the area of the wound. Phlegmonous and abscessing inflammation, as well as regional lymphadenitis may occur. As the infection progresses, tendons, bones and joints may also be affected. In addition, the sinuses and the entire respiratory tract may be affected (chronic bronchitis, pneumonia).
With immunosuppression, septic courses are possible.
In isolated cases conjunctivitis, stomatitis, enteritis, peritonitis, urinary tract infections and myositis.
Bacteremia and/or metastatic spread of lesions may occur.
DiagnosisThis section has been translated automatically.
Culturally from suitable test material
Differential diagnosisThis section has been translated automatically.
Gas gangrene; staphylococcal, streptococcal, Capnocytophaga infection; rat bite disease; cat scratch disease; tularemia.
TherapyThis section has been translated automatically.
Benzylpenicillinis the drug of choice.
LiteratureThis section has been translated automatically.
- Kristinsson G (2007) Pasteurella multocida infections. Pediatr Rev 28: 472-473
- Yokose N et al (2007) Pasteurella multocida sepsis, due to a scratch from a pet cat, in a post-chemotherapy neutropenic patient with non-Hodgkin lymphoma. Int J Hematol 85: 146-148