Trichinella spp. Flashcards
Trichinella spp. is a zoonosis (T/F)
TRUE!!!
What are the definitive hosts for Trichinella spiralis?
- Pigs
- Rats
- Horses
- Bear
- Domestic animals in endemic areas
What is the geographical location of Trichinella spiralis?
Europe and Americas
What are the definitive hosts for Trichinella nelsoni?
Wild African carnivores
What are the definitive hosts for Trichinella nativa?
-Wild artic carnivores
What are the intermediate hosts of Trichinella spp?
Humans
What is characteristic of Trichinella nativa?
T. nativa can withstand freezing
How does transmission of Trichinella spp. occur?
Humans eat infected meat with L1 larvae
Does Trichinella spp. present with anemia?
NO anemia for Trichinella spp.
Describe the clinical symptoms of light infections of Trichinella spp.
usually asymptomatic
What are the 3 clinical symptom phases for heavy infections of Trichinella spp?
1) Enteric phase
2) Migratory phase (Invasive)
3) Encystment phase
What are the clinical symptoms of the enteric phase of heavy trichinella spp. infection?
- Nausea
- Vomiting
- Colic
- DIARRHEA
- sweating
What are the clinical symptoms of the migratory phase of heavy trichinella spp. infection?
- inflammatory response
- periorbital edema
- eosinophilia
- myalgia,
- FEVER
What are the clinical symptoms of the encystment phase of heavy trichinella spp. infection?
- edema,
- dehydration,
- and fever (subsides after 2 months)
What is the prognosis of Trichinella spp. infection?
- Low mortality rate (heart failure)
- Self limiting
