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Publication
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| Research Title |
Spatial analysis of distribution and abundance of Bithynia siamensis goniomphalos in Northeast Thailand with special emphasis on Opisthorchis viverrini transmission |
| Date of Distribution |
8 March 2017 |
| Conference |
| Title of the Conference |
NTDASIA 2017 |
| Organiser |
Tropical Disease Research Center, Faculty of Medicine, Khon Kaen University, Thailand |
| Conference Place |
Pullman Khon Kaen Raja Orchid |
| Province/State |
Thailand |
| Conference Date |
8 March 2017 |
| To |
9 March 2017 |
| Proceeding Paper |
| Volume |
- |
| Issue |
- |
| Page |
92-98 |
| Editors/edition/publisher |
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| Abstract |
Opisthorchis viverrini infection is a key public health problem in Thailand, especially among communities in the Northeast Thailand. Bithynia siamensis goniomphalos is a natural intermediate host of this liver fluke. Spatial analysis using geographic information systems (GIS) is often used for malacological surveys to identify spatial clusters in endemic regions. A survey of B. s. goniomphalos was conducted from May to July 2016 to determine the prevalence of trematode infection and to explore the spatial distribution and abundance of this snail in Northeast Thailand. The overall prevalence of trematode infections in B. s. goniomphalos determined by the cercarial shedding method was 2.235 % (437/19,552). In addition to O. viverrini, five morphotypes of cercariae were found; mutabile, cystophorous, amphistome, parapleurocercous and virgulate cercariae. The prevalence of O. viverrini infection in B. s. goniomphalos was 0.015%. Spatial analysis of B. s. goniomphalos distribution by inverse-distance weighted (IDW) and hot-spot analysis (Getis-Ord Gi*) revealed that hot-spots of snail abundance were the western and eastern parts of the Northeast Thailand, especially in Khon Kaen, Nakhon Panom and Mukdahan Provinces. This is concordant with the high prevalence of human opisthorchiasis in Khon Kaen Province. This study provides useful information for control and management of the snail intermediate host and opisthorchiasis in the targeted areas. However, there is a need to improve further the models used for determining the distribution and abundance of B. s. goniomphalos. |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย