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The use of three immunologic tests in detection of antibodies against Trichinella spiralis.

Human sera (330 from patients with manifestations suggestive trichinosis) were examined for antibodies. The immunologic tests used were counter current immunoelectrophoresis (CEP), enzyme linked immunosorbent assay (ELISA) and immunoflourescence (IF). Seropositive reactions were demonstrated in 2.7%, 5.4% and 2.4% of the sera by the 3 tests respectively. However, 2.4% of the sera were seropositive by the three tests. It seems that the use of two of these tests is valuable in diagnosis when muscle biopsy is unproductive.