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

Autor: Saipin Suputtamongkol, Pei-Jun Ting, Chloé Jollivet, Kittipong Chaisiri, Alexis Ribas, Phimpha Paboriboune, Boupha Thongmalayvong, Silaphet Somphavong, Serge Morand, Kongsap Akkhavong, Viengsaene Saensombath, Surapol Sanguankiat, Boon-Huan Tan, Chern-Chiang Siew
Přispěvatelé: Universitat de Barcelona
Rok vydání: 2017
Předmět:
Male
Rural Population
0301 basic medicine
Veterinary medicine
Disease Outbreaks
Feces
fluids and secretions
0302 clinical medicine
Risk Factors
Surveys and Questionnaires
Prevalence
Taeniasis
Blastocystis hominis
Intestinal Diseases
Parasitic
Child
biology
Entamoeba histolytica
000 - Autres thèmes
Entamoeba coli
Middle Aged
030108 mycology & parasitology
Cyclospora
Infectious Diseases
risk factor
Laos
Q03 - Contamination et toxicologie alimentaires
Female
Original Article
Opisthorchis sp
hookworm
Ascaris lumbricoides
Water Microbiology
environment
Adult
Adolescent
Trichuriasis
water
030231 tropical medicine
Microbial contamination
Young Adult
03 medical and health sciences
Lao PDR
Helminths
parasitic diseases
medicine
Humans
Trichuris trichiura
Helmints
Blastocystis
Water Pollution
Endolimax nana
biology.organism_classification
medicine.disease
Contaminació microbiana
Taenia sp
Parasitology
Giardia lamblia
Strongyloides stercoralis
Cyclospora sp
Zdroj: Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de la UB
Universidad de Barcelona
Korean Journal of Parasitology
The Korean Journal of Parasitology
ISSN: 1738-0006
0023-4001
DOI: 10.3347/kjp.2017.55.5.523
Popis: 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.
Databáze: OpenAIRE
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