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Trichinellosis is an important and under-recognized food-borne zoonosis in Southeast Asia. After 30 years of no reports, a small outbreak was described in Central Lao PDR (Laos) in 2003. Here we report a large outbreak of at least 650 estimated patients in Udomxay (northern Laos) in June 2005. Trichinella ELISA assays on serum from 133 patients and Western blot assays on 16 patients were positive in 67.6% and 81.2%, respectively. No deaths were recorded. Consumption of uncooked or fermented pork at funeral and wedding ceremonies was the main source of infection. Larvae of Trichinella spiralis were found in 1 of 11 local pigs not involved in this outbreak. The results suggest that trichinellosis may be an under-recognized but important endemic disease in Laos and reinforces the need to urgently implement veterinary and educational programs.

Original publication

DOI

10.4269/ajtmh.2008.78.40

Type

Journal article

Journal

The American journal of tropical medicine and hygiene

Publication Date

01/2008

Volume

78

Pages

40 - 44

Addresses

Institut Francophone pour la Médecine Tropicale, Vientiane Lao PDR. Hubert.barennes@auf.org

Keywords

Animals, Swine, Humans, Trichinella, Zoonoses, Antibodies, Helminth, Enzyme-Linked Immunosorbent Assay, Disease Outbreaks, Food Contamination, Funeral Rites, Adult, Laos, Female, Male, Trichinellosis