A total of 351 serum samples was examined for anti–T. gondii antibody titers; the overall seroprevalence was 3.7%. The Sabin– Feldman dye test (DT), latex agglutination test (LAT), and IgG enzyme-linked immunosorbent assay (IgG ELISA) indicated seroprevalences of 3.7%, 3.4%, and 4.0%, respectively. Compared with the DT, the sensitivities of the LAT and IgG ELISA were 84.6% and 100.0%, respectively, and the specificities of the LAT and IgG ELISA were both 99.7%. An increase in T. gondii seroprevalence with increasing age was detected, but the difference was not significant. The overall seroprevalence of T. gondii–antibody titers in pregnant Korean women was relatively low compared to those of Europeans and Americans. A multivariate analysis of risk factors showed that T. gondii infection was positively correlated with eating raw meat, but was not associated with the consumption of unwashed vegetables, drinking untreated water, a history of raising a cat, or blood transfusion. The consumption of raw or undercooked meat may, therefore, be the main route of T. gondii infection in Korea.

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