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Environmental Health and Preventive Medicine

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01.09.2009 | Short Communication

Monitoring of environmental contamination by Echinococcus multilocularis in an urban fringe forest park in Hokkaido, Japan

verfasst von: Jose Trinipil G. Lagapa, Yuzaburo Oku, Masami Kaneko, Sumiya Ganzorig, Takashi Ono, Nariaki Nonaka, Fumio Kobayashi, Masao Kamiya

Erschienen in: Environmental Health and Preventive Medicine | Ausgabe 5/2009

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Abstract

Objectives

The aim of this study was to determine the prevalence of Echinococcus multilocularis environmental contamination in an urban fringe—the Nopporo forest park of Sapporo city, Hokkaido, Japan. A secondary aim was to determine possible transmission risks areas by associating percentage occurrence of E. multilocularis-positive faeces with the different land-use classes.

Methods

Wild fox faeces collected from the environment were examined by intravital methods, such as the taeniid egg sucrose floatation technique, E. multilocularis coproantigen enzyme-linked immunosorbent analysis and DNA test of taeniid eggs by PCR. Geospatial maps produced by the Global Positioning System and Landsat data were analysed using geographic information system software to determine the association between percentage occurrences of E. multilocularis-positive fox faeces and land-use classes.

Results

Our findings showed high prevalence rates in both E. multilocularis egg and coproantigen-positive faeces (16 and 49%, respectively) in the investigated urban fringe forest park. Data revealed that percentage occurrence of E. multilocularis-positive fox faeces was associated with land-use classes, such as forest and open field (P < 0.05).

Conclusions

We conclude that Nopporo forest park in the urban fringe of Sapporo city, Hokkaido is a reservoir with a high prevalence of zoonotic infective agents for alveolar echinococcosis. Our findings suggest that interface habitats between forests or woodlands and open fields are indispensable for continued maintenance of the life-cycle of E. multilocularis and, as such, constitute high risk areas for echinococcosis transmission.

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Titel: Monitoring of environmental contamination by Echinococcus multilocularis in an urban fringe forest park in Hokkaido, Japan
verfasst von: Jose Trinipil G. Lagapa
Yuzaburo Oku
Masami Kaneko
Sumiya Ganzorig
Takashi Ono
Nariaki Nonaka
Fumio Kobayashi
Masao Kamiya
Publikationsdatum: 01.09.2009
Verlag: Springer Japan
Erschienen in: Environmental Health and Preventive Medicine / Ausgabe 5/2009
Print ISSN: 1342-078X
Elektronische ISSN: 1347-4715
DOI: https://doi.org/10.1007/s12199-009-0083-z

Springer Medizin

Abstract

Objectives

Methods

Results

Conclusions

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