Enteral and enteral-parenteral infections were produced with T. spiralis in albino, Swiss Webster, outbred mice. Primary enteral infections abbreviated with thiabendazole stimulated inflammatory changes in Peyer's patches and the lamina propria of the small intestine of mice. These changes were accompanied by increased IgA in the intestinal luminal wash. Primary enteral-parenteral infections similarly stimulated the gut, and, in addition, the spleen. Splenic stimulation resulted in production of IgG1, and IgG2 antibodies specific for T. spiralis L3.
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