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Publication
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| Title of Article |
Infection dynamics of Opisthorchis viverrini metacercariae in cyprinid fishes from two endemic areas in Thailand and Lao PDR |
| Date of Acceptance |
16 September 2019 |
| Journal |
| Title of Journal |
The American Journal of Tropical Medicine and Hygiene |
| Standard |
SCOPUS |
| Institute of Journal |
American Society of Tropical Medicine and Hygiene |
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| Year of Publication |
2019 |
| Page |
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| Abstract |
The infection dynamics of Opisthorchis viverrini metacercariae was analyzed in cyprinid fish from endemic areas in Mukdahan Province, Thailand and Khammouane Province, Lao PDR. The fish were collected during the cool-dry (Nov.–Feb.), hot-dry (Mar.–May) and rainy (Jun.–Oct.) seasons in 2017. They were examined by the digestion method and the infection status was statistically analyzed by study area, season and fish size. The prevalence (No. of fish positive/No. of fish examined x 100) and metacercarial intensities (No. of metacercariae detected/No. of fish positive) of O. viverrini in both study areas depended on season, being high in the cool-dry season and varying in the hot-dry and rainy seasons. In Mukdahan Province the average prevalence was 18.33% (range 11.00-46.66 %, n = 420) and the intensity was 4.07±5.86 cysts/fish (mean ± SD), while in Khammouane Province the prevalence was 51.85% (range 9.09-70.58%, n=673) and the intensity was 6.67±12.88 cysts/fish. Among the cyprinid fish species examined, the infection were associated with fish body size and predominantly found in Hampala dispar (86.45%), Cyclocheilichthys armatus (73.23%), and Puntius brevis (42.68%). The distribution of O. viverrini metacercariae in fish was skewed, with the majority of fish having a low worm burden with an average of 4-6 cyst/fish. The findings that seasonality, sampling locality, fish size as well as species of fish plays roles in the risk of O. viverrini infection imply that these host and environmental factors are important for the transmission dynamics and control of O. viverrini. |
| Keyword |
Opisthorchis viverrini, cyprinid fish, seasonality, body size, species diversity, metacercariae, Thailand, Lao PDR |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
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| Citation |
0
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Journal Publication
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