Rhee Jae Ku, Rim Moon Ho, Baek Byeong Kirl, Lee Ho Il
Department of Veterinary Parasitology, Jeonbug National University, Korea.
Kisaengchunghak Chapchi. 1984 Dec;22(2):190-202. doi: 10.3347/kjp.1984.22.2.190.
In an attempt to clarify the epidemiological feature of distomiasis in Tongjin riverside area, the prevalence of distomiasis in the residents and infection rates of the metacercariae in fresh-water fishes were investigated at the upper, middle and lower reaches of the river from January to April 1984. The results obtained were summarized as follows: Out of a total of 931 fresh-water fishes which composed of 33 different species, 611 fishes (65.6 %) of 31 species were found positive with digenetic trematode metacercariae of 16 different species, and there were some differences in infection rates of the metacercariae among the fishes in the 3 parts of the river; 53.8 percent in upper, 80.7 % in middle, and 61.0 % in lower reaches, respectively. Infection rates of the metacercariae of Exorchis oviformis, Metagonimus yokogawai, Echinochasmus japonicus, Metorchis orientalis and Clonorchis sinensis in the fishes were 48 %, 29 %, 11 %, 7.9 % and 6.3 %, respectively. The average number of the encysted larvae of Clonorchis found in fish body/gram showed 4.44 in Pseudorasbora parva, Gnathopogon coreanus (1.2), Microphysogobio yaluensis(0.76), Abbottina springeri(0.4), Acanthorhodeus asmussi (0.21) and Cultriculus eigenmanni (0.17), respectively. The average number of the metacercariae of Metagonimus found in fish body/gram disclosed 34.01 in Zacco platypus, Zacco temmincki (16.46), Carassius carassius (5.35), Moroco oxycephalus (1.54), Aphyocypris chinensis (1.5) and etc., respectively. Detection rates of the eggs of Clonorchis and Metagonimus among residents were 1.1 % and 0.8 %, respectively, out of a total 923 persons.
为阐明桐津河畔地区吸虫病的流行病学特征，于1984年1月至4月对该河上游、中游和下游居民的吸虫病患病率及淡水鱼体内囊蚴感染率进行了调查。结果总结如下：在总共931条由33个不同物种组成的淡水鱼中，31个物种的611条鱼（65.6%）被发现感染了16个不同物种的复殖吸虫囊蚴，且该河三段区域的鱼囊蚴感染率存在差异；上游为53.8%，中游为80.7%，下游为61.0%。卵形异盘吸虫、横川后殖吸虫、日本棘隙吸虫、东方次睾吸虫和华支睾吸虫在鱼体内的囊蚴感染率分别为48%、29%、11%、7.9%和6.3%。每克鱼体中华支睾吸虫囊蚴的平均数量在麦穗鱼中为4.44个，在朝鲜颌须鮈中为1.2个，在鸭绿江小鳔鮈中为0.76个，在斯氏麦穗鱼中为0.4个，在长刺鳑鲏中为0.21个，在艾氏田中鳑鲏中为0.17个。每克鱼体中后殖吸虫囊蚴的平均数量在宽鳍鱲中为34.01个，在马口鱼中为16.46个，在鲫中为5.35个，在尖头鱥中为1.54个，在中华细鲫中为1.5个等。在总共923人中，居民中华支睾吸虫卵和后殖吸虫卵的检出率分别为1.1%和0.8%。
