Chai Jong-Yil, Sohn Woon-Mok, Jung Bong-Kwang, Yong Tai-Soon, Eom Keeseon S, Min Duk-Young, Insisiengmay Bounnaloth, Insisiengmay Sithat, Phommasack Bounlay, Rim Han-Jong
Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea.
Department of Parasitology and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
Korean J Parasitol. 2015 Aug;53(4):439-45. doi: 10.3347/kjp.2015.53.4.439. Epub 2015 Aug 25.
A survey of intestinal helminths was undertaken in riparian people in Xieng Khouang Province, Lao PDR. Fecal specimens were collected from 643 people (289 males and 354 females) residing in 4 districts (Nonghet, Kham, Phoukout, and Pek) and were examined by the Kato-Katz technique. The overall helminth egg positive rate was 41.2%, and hookworms revealed the highest prevalence (32.7%) followed by Trichuris trichiura (7.3%) and Ascaris lumbricoides (5.6%). The positive rate for small trematode eggs (STE), which may include Opisthorchis viverrini, heterophyids, and lecithodendriids, was 4.4%. For recovery of adult helminths, 12 STE or nematode/cestode egg-positive people were treated with 40 mg/kg praziquantel and 15 mg/kg pyrantel pamoate, and then purged. Mixed infections with 2 Haplorchis species (H. pumilio and H. taichui), Centrocestus formosanus, Opisthorchis viverrini, a species of cestode (Taenia saginata), and several species of nematodes including hookworms and Enterobius vermicularis were detected. The worm load for trematodes was the highest for H. pumilio with an average of 283.5 specimens per infected person followed by C. formosanus, H. taichui, and O. viverrini. The worm load for nematodes was the highest for hookworms (21.5/infected case) followed by E. vermicularis (3.2/infected case). The results revealed that the surveyed areas of Xieng Khouang Province, Lao PDR are endemic areas of various species of intestinal helminths. The STE found in the surveyed population were verified to be those of heterophyids, particularly H. pumilio.
在老挝人民民主共和国川圹省的河岸居民中开展了一项肠道蠕虫调查。从居住在4个区（农赫、坎、普库特和佩克）的643人（289名男性和354名女性）收集粪便样本，并采用改良加藤厚涂片法进行检查。蠕虫虫卵总体阳性率为41.2%，钩虫的感染率最高（32.7%），其次是鞭虫（7.3%）和蛔虫（5.6%）。小型吸虫卵（STE）的阳性率为4.4%，其中可能包括猫后睾吸虫、异形吸虫和枝睾吸虫。为了获取成虫，对12名STE或线虫/绦虫虫卵阳性者给予40mg/kg吡喹酮和15mg/kg噻嘧啶，然后进行驱虫。检测到2种哈氏属吸虫（矮小哈氏吸虫和泰国哈氏吸虫）、台湾棘带吸虫、猫后睾吸虫、一种绦虫（牛带绦虫）以及包括钩虫和蠕形住肠线虫在内的几种线虫的混合感染。吸虫的虫负荷以矮小哈氏吸虫最高，每名感染者平均有283.5条虫，其次是台湾棘带吸虫、泰国哈氏吸虫和猫后睾吸虫。线虫的虫负荷以钩虫最高（每例感染者21.5条），其次是蠕形住肠线虫（每例感染者3.2条）。结果显示，老挝人民民主共和国川圹省的调查地区是多种肠道蠕虫的流行区。在被调查人群中发现的STE经证实为异形吸虫的虫卵，尤其是矮小哈氏吸虫。
