Demonstration of the second intermediate hosts of Clinostomum complanatum in Korea.
A species of metacercariae recovered from the fresh-water fish, collected from Kaumji (Pond), Kaechonji (Pond) and Ssanggyechon (River). Uisong-gun, Kyongsangbuk-do, Korea, was identified as Clinostomum complanatum by morphological observation and experimental infection to chicks. The excysted metacercariae, tongue-shaped and progenetic, were 3.28-4.27 mm in length and 0.94-1.46 mm in width. The adult flukes recovered from the chicks four days after infection were 4.20-4.86 mm long and 1.14-1.49 mm wide. Twelve species of the fresh-water fish were found to be infected with the metacercariae. The infection rate ranged from 1.6% (Zacco temminkii) to 88.9% (Acheilognathus rhombea and Microphysogobio yaluensis). The intensity was highest in Carassius auratus (13.0/fish infected) and the abundance (relative density) was highest in A. rhombea (7.8/fish examined). This survey demonstrated for the first time the source of human infection by C. complanatum in Korea.
Chung
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Department of Parasitology, Kyungpook National University School of Medicine, Taegu, Korea.
Kong
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Moon
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D000818:Animals; D001717:Birds / Q000469:parasitology*; D002645:Chickens; D005399:Fishes / Q000469:parasitology*; D006790:Host-Parasite Interactions; D006801:Humans; D007723:Korea; D014200:Trematoda / Q000033:anatomy & histology* / Q000302:isolation & purification