The European Center for Disesase Control (ECDC) has developed definitions for identifying a case of human trichinellosis.

Clinical Findings

Other Finding


>= 3

>= 1 laboratory finding

confirmed case

>= 3

>= 1 epidemiological finding

probable case


Clinical findings:

(1) fever

(2) muscle pain or soreness

(3) gastrointestinal symptoms

(4) facial edema

(5) eosinophilia

(6) subconjunctival, subungual and retinal hemorrhages


Laboratory findings:

(1) Trichinella larvae demonstrated in muscle biopsy

(2) seroconversion of Trichinella-specific antibody (immunofluorescence, ELISA, Western blot)


Epidemiological findings:

(1) consumption of a meat contaminated with Trichinella larvae

(2) consumption of a potentially parasitized product from an animal with laboratory confirmed trichinellosis

(3) exposure to the same source of trichinellosis as a laboratory-confirmed human case



• Demonstration of trichinella larvae in a muscle biopsy would seem pretty convincing evidence on its own.

• Eosinophilia is a laboratory test, but not a trichinella-related laboratory test.


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