Y. enterocolitica: Difference between revisions
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==Pathogenesis== | ==Pathogenesis== | ||
===Transmission=== | ===Transmission=== | ||
===Infectious dose, incubation, and colonization== | ===Infectious dose, incubation, and colonization=== | ||
The infectious dose for <i>Yersinia enterocolitica </i> is currently unknown. Illness takes place between 24 and 48 hours after ingestion. Illness typically presents as Diarrhea—sometimes bloody—low-grade fever, abdominal pain and vomiting is present in 15-40% of cases. Yersiniosis does not often occur. Most food processing techniques eliminate the risk for infection. The CDC claims 17,000 cases annually in the United States. The disease is much more common in Northern Europe, Scandinavia, and Japan | The infectious dose for <i>Yersinia enterocolitica </i> is currently unknown. Illness takes place between 24 and 48 hours after ingestion. Illness typically presents as Diarrhea—sometimes bloody—low-grade fever, abdominal pain and vomiting is present in 15-40% of cases. Yersiniosis does not often occur. Most food processing techniques eliminate the risk for infection. The CDC claims 17,000 cases annually in the United States. The disease is much more common in Northern Europe, Scandinavia, and Japan | ||
Revision as of 21:24, 16 July 2014
Etiology/Bacteriology
Taxonomy
| Domain = Bacteria
| Phylum = Proteobacteria
| Class = Gammaproteobacteria
| Order = Enterobacteriales
| Family = Enterobacteriaceae
| Genus = Yersinia
| species = Y. enterocolitica
Description
Pathogenesis
Transmission
Infectious dose, incubation, and colonization
The infectious dose for Yersinia enterocolitica is currently unknown. Illness takes place between 24 and 48 hours after ingestion. Illness typically presents as Diarrhea—sometimes bloody—low-grade fever, abdominal pain and vomiting is present in 15-40% of cases. Yersiniosis does not often occur. Most food processing techniques eliminate the risk for infection. The CDC claims 17,000 cases annually in the United States. The disease is much more common in Northern Europe, Scandinavia, and Japan
Epidemiology
Virulence Factors
Clinical Features
Diagnosis
Treatment
Infections by Yersinia enterocolitica are usually self-limiting and will resolve on their own in most patients who recover without any antibiotic treatment within a seven days to three weeks. Hydration is important in uncomplicated cases of diarrhea caused by the organism and will be sufficient treatment in the infection, however in severe or more complicated cases of infection antibiotic treatment may be necessary. The antibiotics commonly used are aminoglycosides, doxycycline, trimethoprim-sulfamethoxazole, or fluoroquinolones.
Prevention
Prevention of Yersinia enterocolitica infection is easy if one is aware of what to avoid. The most common mode of transmission is via poultry and livestock. Thus, avoid raw or undercooked meats. Make sure that milk products are pasteurized before consumption. If raw meat must be handled, clean hands thoroughly to avoid cross-contamination. Beware of cross-contamination in the kitchen by cleaning all surfaces and appliances with soap and hot water. Animal feces may also be contaminated so dispose of all animal waste properly.
Host Immune Response
References
Created by Emily Kurtz, Kristen Hoelscher, Dane Korber and Caitlyn Baukal, students of Tyrrell Conway at the University of Oklahoma
