Epidemiological survey on the infection of intestinal flukes in residents of Muan-gun, Jeollanam-do, the Republic of Korea.
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.
Cho
Shin-Hyeong
SH
National Institute of Health, Centers for Disease Control and Prevention, Seoul 122-701, Korea.
Cho
Pyo-Yun
PY
Lee
Dong-Min
DM
Kim
Tong-Soo
TS
Kim
In-Sang
IS
Hwang
Eun-Jung
EJ
Na
Byoung-Kuk
BK
Sohn
Woon-Mok
WM
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
D000871:Anthelmintics; D011223:Praziquantel; D008278:Magnesium Sulfate