Abstract
Abstract The effects of simulatenous infection of pigs with Oesophagostomum spp. and Trichinella spiralis on the interpretation of the Enzyme-Linked Immunosorbent Assay (ELISA) for trichinosis were examined. Extinction values were observed from four groups of pigs. The first group acted as uninfected controls, the second was infected only with Oesophagostomum spp., the third with T. spiralis alone and the fourth by both nematodes. It was found that the pigs infected with T. spiralis could be differentiated from the others, but that those infected with both species had lower extinction values than the group with T. spiralis alone. The differences may be related to the numbers of T. spiralis larvae able to establish and develop into adults in the small intestine of the host. Those infected with Oesophagostomum spp. alone showed no rise in extinction values, and it was concluded that there was no cross-reaction in the ELISA between thos pecies and T. spiralis antigen.
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