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Intestinal Parasites in Indochinese Immigrants^*

Fifty-two percent of 419 recent Indochinese refugees, most of whom were studied because they had symptoms, signs, or hematologic findings suggestive of parasitism, had intestinal parasites. The frequency of parasitism was comparable in Vietnamese vs. other Inodochinese (Cambodians and Laotians), but other Indochinese were more often found to have multiple parasites. The most common parasite in Vietnamese was Ascaris lumbricoides, hookworm was the most common parasite in Cambodians and Laotians, and opisthorchid flukes were only found in Laotians. Age and sex were not related to infection except for Giardia, which was more prevalent in children. Based on public or personal health hazards and treatability, 33% of patients had parasites judged to warrant therapy, even in a clinically normal host.

Accepted for publication October 4, 1980.

^* Address reprint requests to: Stephen L. Hoffman, M.D., Department of Clinical Investigation and Epidemiology, U.S. Naval Medical Research Unit No. 2, Jakarta Detachment, APO San Francisco, California 96356.