High prevalence of Opisthorchis viverrini infection in a riparian population in Takeo Province, Cambodia.
Opisthorchis viverrini infection was found to be highly prevalent in 3 riverside villages (Ang Svay Chek A, B, and C) of the Prey Kabas District, Takeo Province. This area is located in the southern part of Cambodia, where the recovery of adult O. viverrini worms was recently reported. From May 2006 until May 2010, fecal examinations were performed on a total of 1,799 villagers using the Kato-Katz thick smear technique. In the 3 villages, the overall positive rate for helminth eggs ranged from 51.7 to 59.0% (av. 57.4%), and the percentage positive for O. viverrini was 46.4-50.6% (47.5%). Other helminths detected included hookworms (13.2%), echinostomes (2.9%), Trichuris trichiura (1.3%), Ascaris lumbricoides (0.6%), and Taenia spp. (0.06%). The prevalence of O. viverrini eggs appeared to reflect a lower infection in younger individuals (<20 years) than in the adult population (>20 years). Men (50.4%) revealed a significantly higher (P=0.02) prevalence than women (44.3%). The Ang Svay Chek villages of the Prey Kabas District, Takeo Province, Cambodia have been confirmed to be a highly endemic area for human O. viverrini infection.
Department of Environmental Medical Biology, Institute of Tropical Medicine and Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul 120-752, Korea.
Tai-Soon
TS
Yong
Eun-Hee
EH
Shin
Jong-Yil
JY
Chai
Woon-Mok
WM
Sohn
Keeseon S
KS
Eom
Dong-Min
DM
Lee
Keunhee
K
Park
Hoo-Gn
HG
Jeoung
Eui-Hyug
EH
Hoang
Yoon-Hee
YH
Lee
Hyun-Ju
HJ
Woo
Ji-Hwa
JH
Lee
Sin-Il
SI
Kang
Jae-Ku
JK
Cha
Keon-Hoon
KH
Lee
Cheong-Ha
CH
Yoon
Muth
M
Sinuon
Duong
D
Socheat
D000293:Adolescent; D000328:Adult; D000369:Aged, 80 and over; D000818:Animals; D002160:Cambodia / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D060085:Coinfection / Q000453:epidemiology; D005243:Feces / Q000469:parasitology; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009889:Opisthorchiasis / Q000453:epidemiology*; D009891:Opisthorchis / Q000302:isolation & purification*; D015995:Prevalence; D012424:Rural Population; D055815:Young Adult