Soil is the origin for the presence of Naegleria fowleri in the thermal recreational waters
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- 作者：Mirna Moussa ; Océane Tissot ; Jér?me Guerlotté…
- 关键词：Naegleria fowleri ; Reservoir ; Soil ; Prevention
- 刊名：Parasitology Research
- 出版年：2015
- 出版时间：January 2015
- 年：2015
- 卷：114
- 期：1
- 页码：311-315
- 全文大小：682 KB
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Océane Tissot (1)
Jér?me Guerlotté (1) (2) (3)
Johan F. De Jonckheere (1)
Antoine Talarmin (1)
1. Unité Environnement-Santé, Institut Pasteur de la Guadeloupe, 97183, Les Abymes CEDEX, Guadeloupe, France
2. Université des Antilles et de la Guyane, F-97159, Pointe à Pitre, Guadeloupe, France
3. Muséum National d’Histoire Naturelle, UMR 7205 MNHN/CNRS, 75231, Paris CEDEX 5, France - 刊物类别：Biomedical and Life Sciences
- 刊物主题：Biomedicine
Medical Microbiology
Microbiology
Immunology - 出版者：Springer Berlin / Heidelberg
- ISSN：1432-1955
文摘
Naegleria fowleri is found in most geothermal baths of Guadeloupe and has been responsible for the death of a 9-year-old boy who swam in one of these baths in 2008. We wanted to determine the origin for the presence of this amoeba in the water. Water samples were taken at the origin of the geothermal sources and at the arrival in the baths. After filtration, cultures were made and the number of Naegleria present was determined using the most probable number method. Soil samples collected in the proximity of the baths were also tested for the presence of thermophilic amoebae. The species identification was obtained by PCR. During three consecutive months, no Naegleria could be found at the origin of any geothermal source tested. In contrast, N. fowleri was isolated at least once in all baths at the arrival of the water, except one. Thermophilic amoebae could be found in each soil sample, especially near the baths located at a lower altitude, but N. fowleri was only isolated near two baths, which were also the baths most often contaminated with this species. So it appears that the contamination of the water with N. fowleri occurs after emerging from the geothermal source when the water runs over the soil. Therefore, it should be possible to reduce the concentration of N. fowleri in the geothermal baths of Guadeloupe to for example less than 1-em class="a-plus-plus">N. fowleri/10?L by installing a pipeline between the geothermal sources and the baths and by preventing flooding water from entering the baths after rainfall. By taking these measures, we were able to eliminate N. fowleri from a pool located inside a reeducation clinic.