Trichinosis is caused by roundworms of the genus Trichinella. First symptoms are gastrointestinal, occurring 1-2 days after exposure to undercooked meat, including:
- nausea
- diarrhea
- vomiting
- abdominal pain
Later symptoms occur within 2 weeks after exposure, including:
- muscle pain
- fever
- swelling of the face
- weakness
- fatigue
- cough
- diarrhea
- constipation.
In Arizona, over the last 10 years, there have been 2 cases reported.
Arizona 5 year median: 0 cases
Transmission
Human infection occurs when ingesting meat containing Trichinella cysts.
The incubation period is usually less than 1 month.
Lab Tests & Specimen Info
Test*
|
Specimen
|
Serology ELISA
(IgG antibodies can be detected 12 to 60 days post-infection) |
Serum
|
Immunoassay EIA
(IgG antibodies can be detected 12 to 60 days post-infection) |
Serum
|
Infection does not occur person-to-person.
Prevention for Patients
- Cook meat to safe temperatures. Wash hands after handling raw meat. Freeze pork less than 6 inches thick for 20 days at 5°F (-15°C) to kill any worms.
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