Land use and soil type determine the presence of the pathogen Burkholderia pseudomallei in tropical rivers.
Identifieur interne : 000629 ( Ncbi/Curation ); précédent : 000628; suivant : 000630Land use and soil type determine the presence of the pathogen Burkholderia pseudomallei in tropical rivers.
Auteurs : Olivier Ribolzi [France] ; Emma Rochelle-Newall [France] ; Sabine Dittrich [Laos] ; Yves Auda [France] ; Paul N. Newton [Laos] ; Sayaphet Rattanavong [Laos] ; Michael Knappik [Laos] ; Bounsamai Soulileuth [Laos] ; Oloth Sengtaheuanghoung [Laos] ; David A B. Dance [Laos] ; Alain Pierret [Laos]Source :
- Environmental science and pollution research international [ 1614-7499 ] ; 2016.
Abstract
Burkholderia pseudomallei is the bacterium that causes melioidosis in humans. While B. pseudomallei is known to be endemic in South East Asia (SEA), the occurrence of the disease in other parts of the tropics points towards a potentially large global distribution. We investigated the environmental factors that influence the presence (and absence) of B. pseudomallei in a tropical watershed in SEA. Our main objective was to determine whether there is a link between the presence of the organism in the hydrographic network and the upstream soil and land-use type. The presence of B. pseudomallei was determined using a specific quantitative real-time PCR assay following enrichment culture. Land use, soil, geomorphology, and environmental data were then analyzed using partial least squares discriminant analysis (PLSDA) to compare the B. pseudomallei positive and negative sites. Soil type in the surrounding catchment and turbidity had a strong positive influence on the presence (acrisols and luvisols) or absence (ferralsols) of B. pseudomallei. Given the strong apparent links between soil characteristics, water turbidity, and the presence/absence of B. pseudomallei, actions to raise public awareness about factors increasing the risk of exposure should be undertaken in order to reduce the incidence of melioidosis in regions of endemicity.
DOI: 10.1007/s11356-015-5943-z
PubMed: 26758304
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Box 4199, Ban Nogviengkham, Xaythany District, Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Department of Agricultural Land Management (DALaM), P.O. Box 4199, Ban Nogviengkham, Xaythany District, Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Dance, David A B" sort="Dance, David A B" uniqKey="Dance D" first="David A B" last="Dance">David A B. 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Newton</name><affiliation wicri:level="1"><nlm:affiliation>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Rattanavong, Sayaphet" sort="Rattanavong, Sayaphet" uniqKey="Rattanavong S" first="Sayaphet" last="Rattanavong">Sayaphet Rattanavong</name><affiliation wicri:level="1"><nlm:affiliation>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Knappik, Michael" sort="Knappik, Michael" uniqKey="Knappik M" first="Michael" last="Knappik">Michael Knappik</name><affiliation wicri:level="1"><nlm:affiliation>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Soulileuth, Bounsamai" sort="Soulileuth, Bounsamai" uniqKey="Soulileuth B" first="Bounsamai" last="Soulileuth">Bounsamai Soulileuth</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecology and Environmental Science-Paris, Institut de Recherche pour le Développement (IRD), Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Institute of Ecology and Environmental Science-Paris, Institut de Recherche pour le Développement (IRD), Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Sengtaheuanghoung, Oloth" sort="Sengtaheuanghoung, Oloth" uniqKey="Sengtaheuanghoung O" first="Oloth" last="Sengtaheuanghoung">Oloth Sengtaheuanghoung</name><affiliation wicri:level="1"><nlm:affiliation>Department of Agricultural Land Management (DALaM), P.O. Box 4199, Ban Nogviengkham, Xaythany District, Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Department of Agricultural Land Management (DALaM), P.O. Box 4199, Ban Nogviengkham, Xaythany District, Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Dance, David A B" sort="Dance, David A B" uniqKey="Dance D" first="David A B" last="Dance">David A B. Dance</name><affiliation wicri:level="1"><nlm:affiliation>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author><author><name sortKey="Pierret, Alain" sort="Pierret, Alain" uniqKey="Pierret A" first="Alain" last="Pierret">Alain Pierret</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Ecology and Environmental Science-Paris, Institut de Recherche pour le Développement (IRD), Vientiane, Lao People's Democratic Republic.</nlm:affiliation><country xml:lang="fr">Laos</country><wicri:regionArea>Institute of Ecology and Environmental Science-Paris, Institut de Recherche pour le Développement (IRD), Vientiane</wicri:regionArea><wicri:noRegion>Vientiane</wicri:noRegion></affiliation></author></analytic><series><title level="j">Environmental science and pollution research international</title><idno type="eISSN">1614-7499</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Burkholderia pseudomallei is the bacterium that causes melioidosis in humans. While B. pseudomallei is known to be endemic in South East Asia (SEA), the occurrence of the disease in other parts of the tropics points towards a potentially large global distribution. We investigated the environmental factors that influence the presence (and absence) of B. pseudomallei in a tropical watershed in SEA. Our main objective was to determine whether there is a link between the presence of the organism in the hydrographic network and the upstream soil and land-use type. The presence of B. pseudomallei was determined using a specific quantitative real-time PCR assay following enrichment culture. Land use, soil, geomorphology, and environmental data were then analyzed using partial least squares discriminant analysis (PLSDA) to compare the B. pseudomallei positive and negative sites. Soil type in the surrounding catchment and turbidity had a strong positive influence on the presence (acrisols and luvisols) or absence (ferralsols) of B. pseudomallei. Given the strong apparent links between soil characteristics, water turbidity, and the presence/absence of B. pseudomallei, actions to raise public awareness about factors increasing the risk of exposure should be undertaken in order to reduce the incidence of melioidosis in regions of endemicity.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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