Intestinal Parasitic Infections and Environmental Water Contamination in a Rural Village of Northern Lao PDR

Alexis Ribas; Chloé Jollivet; Serge Morand; Boupha Thongmalayvong; Silaphet Somphavong; Chern-Chiang Siew; Pei-Jun Ting; Saipin Suputtamongkol; Viengsaene Saensombath; Surapol Sanguankiat; Boon-Huan Tan; Phimpha Paboriboune; Kongsap Akkhavong; Kittipong Chaisiri

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자료유형: 학술저널

저자정보: Alexis Ribas (University of Barcelona) Chloé Jollivet (Kasetsart University) Serge Morand (Kasetsart University) Boupha Thongmalayvong (National Institute of Health) Silaphet Somphavong (Centre Christophe Merieux du Laos) Chern-Chiang Siew (DSO National Laboratories) Pei-Jun Ting (DSO National Laboratories) Saipin Suputtamongkol (Thammasart University) Viengsaene Saensombath (Luangprabang Provincial Hospital) Surapol Sanguankiat (Mahidol University) Boon-Huan Tan (DSO National Laboratories) Phimpha Paboriboune (Centre Christophe Merieux du Laos) Kongsap Akkhavong (National Institute of Health) Kittipong Chaisiri (Mahidol University)

저널정보: 대한기생충학열대의학회 Parasites, Hosts and Diseases The Korean Journal of Parasitology Vol.55 No.5

발행연도: 2017.10

수록면: 523 - 532 (10page)

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연구주제

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연구배경

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연구방법

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A field survey studying intestinal parasites in humans and microbial pathogen contamination at environment was performed in a Laotian rural village to identify potential risks for disease outbreaks. A parasitological investigation was conducted in Ban Lak Sip village, Luang Prabang, Lao PDR involving fecal samples from 305 inhabitants as well as water samples taken from 3 sites of the local stream. Water analysis indicated the presence of several enteric pathogens, i.e., Aeromonas spp., Vibrio spp., E. coli H7, E. coli O157: H7, verocytotoxin-producing E. coli (VTEC), Shigella spp., and enteric adenovirus. The level of microbial pathogens contamination was associated with human activity, with greater levels of contamination found at the downstream site compared to the site at the village and upstream, respectively. Regarding intestinal parasites, the prevalence of helminth and protozoan infections were 68.9% and 27.2%, respectively. Eight helminth taxa were identified in fecal samples, i.e., 2 tapeworm species (Taenia sp. and Hymenolepis diminuta), 1 trematode (Opisthorchis sp.), and 5 nematodes (Ascaris lumbricoides, Trichuris trichiura, Strongyloides stercoralis, trichostrongylids, and hookworms). Six species of intestinal protists were identified, i.e., Blastocystis hominis, Cyclospora spp., Endolimax nana, Entamoeba histolytica/E. dispar, Entamoeba coli, and Giardia lamblia. Questionnaires and interviews were also conducted to determine risk factors of infection. These analyses together with a prevailing infection level suggested that most of villagers were exposed to parasites in a similar degree due to limited socio-economic differences and sharing of similar practices. Limited access to effective public health facilities is also a significant contributing factor.

#Ascaris lumbricoides #Trichuris trichiura #Strongyloides stercoralis #hookworm #Opisthorchis sp. #Taenia sp. #Blastocystis hominis #Cyclospora sp. #Endolimax nana #Entamoeba histolytica #Entamoeba coli #Giardia lamblia #environment #water #risk factor #Lao PDR

참고문헌 (33)

참고문헌 신청

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[학술지(정기간행물)] - Holt HR / 2016 / Endemicity of zoonotic diseases in pigs and humans in lowland and upland Lao PDR: identification of socio-cultural risk factors / PLoS Negl Trop Dis 10 : e0003913 ~

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