title: Epidemiological survey on the infection of intestinal flukes in residents of Muan-gun, Jeollanam-do, the Republic of Korea.
abstract: Infection status of intestinal flukes was investigated in residents of Muan-gun, Jeollanam-do, the Republic of Korea. Total 1,257 fecal samples of residents were examined by formalin-ether sedimentation technique and Kato-Katz thick smear method. Helminth eggs were detected from 95 (7.6%) residents, and eggs of heterophyid flukes and Clonorchis sinensis were found from 62 (4.9%) and 40 (3.2%) cases, respectively. The larger heterophyid eggs, somewhat dark-brown in color and 37.7 x 21.5 microm in average size, and found in 32 (2.6%) out of 62 egg positive cases of heterophyid flukes. To confirm the adult flukes, we performed worm recovery from 12 cases after praziquantel treatment and purgation with MgSO(4). A total of 1,281 adult flukes, assigned to 7 species, were recovered from 9 cooperative cases. Heterophyes nocens (total 981 specimens) was collected from 9 cases, Stictodora fuscata (80) from 7, Gymnophalloides seoi (75) from 5, Pygidiopsis summa (140) from 3, Stellantchasmus falcatus (3) from 2, and Stictodora lari and Acanthotrema felis (each 1 worm) from 1 case each. The intrauterine eggs of S. fuscata collected from the recovered worm were identical with the larger heterophyid eggs detected in the stool examination. By the present study, it was confirmed that A. felis is a new intestinal fluke infecting humans, and residents in Muan-gun, Jeollanam-do are infected with variable species of intestinal trematodes.
authors.affiliation: National Institute of Health, Centers for Disease Control and Prevention, Seoul 122-701, Korea.
authors.forename: Shin-Hyeong
authors.initials: SH
authors.lastname: Cho
authors.forename: Pyo-Yun
authors.initials: PY
authors.lastname: Cho
authors.forename: Dong-Min
authors.initials: DM
authors.lastname: Lee
authors.forename: Tong-Soo
authors.initials: TS
authors.lastname: Kim
authors.forename: In-Sang
authors.initials: IS
authors.lastname: Kim
authors.forename: Eun-Jung
authors.initials: EJ
authors.lastname: Hwang
authors.forename: Byoung-Kuk
authors.initials: BK
authors.lastname: Na
authors.forename: Woon-Mok
authors.initials: WM
authors.lastname: Sohn
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000008:administration & dosage; D005243:Feces / Q000469:parasitology; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology* / Q000469:parasitology; D008278:Magnesium Sulfate / Q000008:administration & dosage; D008853:Microscopy; D011223:Praziquantel / Q000008:administration & dosage; D015995:Prevalence; D056910:Republic of Korea / Q000453:epidemiology; D014200:Trematoda / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification*; D014201:Trematode Infections / Q000453:epidemiology* / Q000469:parasitology
chemical_list: D000871:Anthelmintics; D011223:Praziquantel; D008278:Magnesium Sulfate