Cho Shin-Hyeong, Lee Won-Ja, Kim Tong-Soo, Seok Won-Seok, Lee Taejoon, Jeong Kyungjin, Na Byoung-Kuk, Sohn Woon-Mok
Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea.
Department of Parasitology and Inha Research Institute for Medical Sciences, Inha University College of Medicine, Incheon 400-103, Korea.
Korean J Parasitol. 2014 Aug;52(4):399-412. doi: 10.3347/kjp.2014.52.4.399. Epub 2014 Aug 29.
The infection status of zoonotic trematode metacercariae was investigated in a total of 2,293 freshwater fish collected from 11 rivers or streams in 9 administrative regions of Gangwon-do, Korea for 5 years (2009-2013). All fish were collected by netting methods and examined using the artificial digestion methods. Clonorchis sinensis metacercariae were detected in 4 fish species, i.e., Pungtungia herzi, Squalidus japonicus coreanus, Acheilognathus rhombeus, and Ladislabia taczanowskii, from only Hantangang in Cheorwon-gun. Metagonimus spp. metacercariae were found in 1,154 (50.3%) fish and their average number per infected fish was 55.8. Among the positive fish species, especially Tribolodon hakonensis from Namdaecheon in Yangyang-gun and Plecoglossus altivelis from Osipcheon in Samcheok-si were most heavily infected. Centrocestus armatus metacercariae were detected in 611 (26.7%) fish and the average metacercarial burden per infected fish was 1,032. Two chub species, Zacco platypus and Zacco temminckii were highly and heavily infected with C. armatus metacercariae in almost all regions surveyed. Echinostoma spp. metacercariae were also found in 24 fish from a few localities, but their numbers per fish infected were very low. From the above results, it is confirmed that the metacercariae of intestinal flukes, especially Metagonimus spp. and C. armatus, were heavily infected, while C. sinensis metacercariae were rarely found in fish from Gangwon-do, Korea.
在韩国江原道9个行政区的11条河流或溪流中，历时5年（2009 - 2013年）共采集了2293条淡水鱼，调查其体内人兽共患吸虫囊蚴的感染状况。所有鱼类均采用网捕法采集，并通过人工消化法进行检测。仅在铁原郡的汉滩江中，于4种鱼类（即赫氏黄黝鱼、朝鲜银鮈、方氏鳑鲏和塔氏雅罗鱼）中检测到华支睾吸虫囊蚴。在1154条（50.3%）鱼中发现了异形吸虫属囊蚴，每条感染鱼的平均囊蚴数为55.8个。在阳性鱼类中，尤其是襄阳郡南大川的日本七鳃鳗和三陟市乌石川的香鱼感染最为严重。在611条（26.7%）鱼中检测到臂形嗜口吸虫囊蚴，每条感染鱼的平均囊蚴负荷为1032个。在几乎所有调查区域，两种雅罗鱼（宽鳍鱲和马口鱼）均高度且严重感染臂形嗜口吸虫囊蚴。在少数地区的24条鱼中也发现了棘口吸虫属囊蚴，但每条感染鱼的囊蚴数量非常少。根据上述结果，证实韩国江原道鱼类体内肠道吸虫囊蚴，尤其是异形吸虫属和臂形嗜口吸虫感染严重，而华支睾吸虫囊蚴很少见。
