title: Control of clonorchiasis in Korea: effectiveness of health education for community leaders and individuals in an endemic area.
abstract: OBJECTIVE
  To develop effective intervention programmes to control Clonorchis sinensis infection, three interventions were evaluated in a clonorchiasis-endemic area of Korea.
  
  
  METHODS
  Four thousand two hundred and sixty-seven voluntary participants in Sancheong county were tested at baseline and two follow-up surveys after 1 and 3 years. Faecal samples were examined for C. sinensis eggs using the Kato-Katz method. Participants were divided into three intervention groups by areas and year recruited: national prevention programme only (mass health campaign and praziquantel treatment) for Group A; health education for community leaders added for Group B; and individual health education added for Group C.
  
  
  RESULTS
  The prevalence of C. sinensis infection fell substantially in all three intervention groups between baseline and 3-year follow-up: from 31.1% to 14.9% in Group A, from 29.6% to 6.8% in Group B and from 21.9% to 8.6% in Group C. The control effectiveness was highest in Group B with 76.8%. The new infection rate was 16.3%, 12.8% and 7.6% in Group A, B and C, respectively. The reinfection rate was lower in Group B (3.8%) than Group C (12.2%).
  
  
  CONCLUSIONS
  To control C. sinensis infection in endemic areas of Korea, health education for community leaders or individuals on prevention of C. sinensis infection should be added to national control programmes.
authors.affiliation: Division of Cancer Prevention, National Cancer Control Institute, National Cancer Center, Gyeounggi-do, Korea.
authors.forename: Jin-Kyoung
authors.initials: JK
authors.lastname: Oh
authors.forename: Min Kyung
authors.initials: MK
authors.lastname: Lim
authors.forename: E Hwa
authors.initials: EH
authors.lastname: Yun
authors.forename: Heeyoun
authors.initials: H
authors.lastname: Cho
authors.forename: Eun Young
authors.initials: EY
authors.lastname: Park
authors.forename: Min-Ho
authors.initials: MH
authors.lastname: Choi
authors.forename: Hai-Rim
authors.initials: HR
authors.lastname: Shin
authors.forename: Sung-Tae
authors.initials: ST
authors.lastname: Hong
mesh_terms: D000368:Aged; D000818:Animals; D003003:Clonorchiasis / Q000188:drug therapy* / Q000469:parasitology; D003004:Clonorchis sinensis; D019353:Endemic Diseases; D005243:Feces / Q000469:parasitology; D005260:Female; D006266:Health Education; D006293:Health Promotion; D006801:Humans; D007857:Leadership; D008297:Male; D008875:Middle Aged; D010270:Parasite Egg Count; D010353:Patient Education as Topic; D011223:Praziquantel / Q000627:therapeutic use*; D015995:Prevalence; D056910:Republic of Korea / Q000453:epidemiology; D012111:Residence Characteristics
chemical_list: D011223:Praziquantel
keywords: Clonorchis sinensis; Endemicidad; Praziquantel; control effectiveness; contrôle de l'efficacité; educación sanitaria; efectividad del control; endemicity; endémicité; field intervention; health education; intervención de campo; intervention sur le terrain; praziquantel; éducation à la santé