Epidemiology of Opisthorchis viverrini in a rural district of southern Lao PDR》.pdf

Transactions of the Royal Society of Tropical Medicine and Hygiene (2007) 101, 40—47 a v a i la b le at ww w.scie ncedirect. com j o u rn al h omepage: www.elsevi /journals/tr st Epidemiology of Opisthorchis viverrini in a rural district of southern Lao PDR Somphou Sayasone a,b, Peter Odermatta,b,∗, Niranh Phoumindra,c, Xaybundith Vongsaravane d a , Viensene Sensombath , Rattanaxay Phetsouvanhe, Xayadeth Choulamanyf, Michel Strobela a ´ Institut de la Francophonie pour la Medecine Tropicale, Vientiane, Lao PDR b Department of Public Health and Epidemiology, Swiss Tropical Institute, Basel, Switzerland c Faculty of Medical Sciences, National University of Laos, Vientiane, Lao PDR d Mahosot Hospital, Ministry of Health, Vientiane, Lao PDR e Centre of Malariology, Parasitology and Entomology, Ministry of Health, Vientiane, Lao PDR f Live Aquatic Resources and Research Centre, Ministry of Agriculture and Forestry, Vientiane, Lao PDR Received 30 December 2005; received in revised form 13 February 2006; accepted 14 February 2006 Available online 7 July 2006 KEYWORDS Summary In Lao PDR, detailed investigations on Opisthorchis viverrini are scarce. The objec- Opisthorchis tive was to document epidemiological features of O. viverrini infections in a highly endemic dis- viverrini; trict. A random sample was selected (13 villages, 15 households/village, all household members Food-borne aged 6 months). Clinical examinations, short interviews and stool examinations (Kato—Katz trematode; technique) were performed. Fish samples were dissected for the pres