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http://dx.doi.org/10.3347/kjp.2020.58.1.67

Echinostoma aegyptica (Trematoda: Echinostomatidae) Infection in Five Riparian People in Savannakhet Province, Lao PDR  

Chai, Jong-Yil (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Jung, Bong-Kwang (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Chang, Taehee (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Shin, Hyejoo (Institute of Parasitic Diseases, Korea Association of Health Promotion)
Sohn, Woon-Mok (Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine)
Eom, Keeseon S. (Department of Parasitology and Parasite Research Center, Parasite Resource Bank, Chungbuk National University School of Medicine)
Yong, Tai-Soon (Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine)
Min, Duk-Young (Department of Microbiology and Immunology, Eulji University School of Medicine)
Phammasack, Bounlay (Department of Hygiene and Prevention, Ministry of Health)
Insisiengmay, Bounnaloth (Department of Hygiene and Prevention, Ministry of Health)
Rim, Han-Jong (Department of Parasitology, Korea University College of Medicine)
Publication Information
Parasites, Hosts and Diseases / v.58, no.1, 2020 , pp. 67-72 More about this Journal
Abstract
Human infection with Echinostoma aegyptica Khalil and Abaza, 1924 (Trematoda: Echinostomatidae) is extremely rare. In this study, we confirmed E. aegyptica infection in 5 riparian residents living along the Mekong River in Savannakhet Province, Lao PDR. The patients revealed eggs of Opisthorchis viverrini/minute intestinal flukes, echinostomes, and other parasites in fecal examinations using the Kato-Katz technique. Following treatment with praziquantel 30-40 mg/kg and pyrantel pamoate 10-15 mg/kg in a single dose and purging with magnesium salts, adult specimens of various helminth species were collected. Among the trematodes, echinostome flukes of 4.5-7.6 mm in length (n = 134; av. 22.3 specimens per case) were of taxonomic interest and subjected in this study. The flukes were morphologically characterized by having total 43-45 collar spines arranged in 2 alternating rows (corner spines usually 5 on each side) and compatible with previous descriptions of E. aegyptica. The patients were mixed-infected with other helminths, so specific clinical manifestations due to this echinostome fluke were difficult to determine. The present paper describes for the first time human E. aegyptica infections in Lao PDR. This is the second report of human infection (2nd-6th cases) with E. aegyptica in the world following the first one from China.
Keywords
Echinostoma aegyptica; echinostome; Savannakhet; Lao PDR;
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Times Cited By KSCI : 10  (Citation Analysis)
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