Trichinosis diagnostic criteria

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Danitza Lukac


The diagnosis of trichinosis is based on the European Center for Disease Control criteria, which include a combination of clinical, laboratory and epidemiological criteria.[1][2]

Diagnostic Criteria

The following diagnostic criteria are suggested for the diagnosis of trichinosis:[1][2]

Clinical criteria

Laboratory criteria

Epidemiological criteria

  • At least 1 of the following 3 diagnostic criteria is met:
    • Epidemiological connection to exposure of the same common source of a patient with confirmed laboratory result, OR
    • Laboratory result confirming consumption of potentially parasitised products from an infected animal,OR
    • Laboratory result confirming consumption of parasitised meat

Case Confirmation

Confirmed Case

Patients with clinical AND laboratory criteria within the last 2 months

Possible Case

Patients with clinical AND epidemiological criteria


  1. 1.0 1.1 Gottstein B, Pozio E, Nöckler K (2009). "Epidemiology, diagnosis, treatment, and control of trichinellosis". Clin Microbiol Rev. 22 (1): 127–45, Table of Contents. doi:10.1128/CMR.00026-08. PMC 2620635. PMID 19136437.
  2. 2.0 2.1 FAO/WHO/OIE Guidelines for the surveillance, management, prevention and control of trichinellosis. FAO (2007). Accessed on January 28, 2016