title: [Hepatitis viruses infection situation in human population of the Gansu province].
abstract: OBJECTIVE
  To investigate the seroprevalence of hepatitis viruses in human population of Ganso province.
  
  
  METHODS
  ELISA was used for detecting anti-HAY IgG, HBsAg/HBsAb, anti-HCV IgG and anti-HEV IgG of the serum samples. All sample were collected in four areas of KL, LT, HN and ZhL of Gansu province in 2008.
  
  
  RESULTS
  1977 samples were detected, The positive rates of anti-HAY, HBsAg/HBsAh, anti-HCV, and anti-HEY are 84.57% (1672/1977), 4.81% (95/1977) and 28.73% (568/1977), 0.46% (9/1977),and 13.10% (259/1977), respectively. The positive rate at different age group, for anti-HAY was 43.21% of c 9 years old, 80.23% of 10-19 years old, 93.02% of 20-29 years old, 95.55% of 30-39 years old, 95.60%-97.52% of 40-60 years old. For HBsAg/HBsAb were 2.09% or 29.27%, 3.02% or 21.81%, 6.20% or 36.43%, 5.93% or 31.16%, 6.43% or 3l.43%, 7.32% or 24.88%, 3.33% or 28.89% at the same age group, respectively, for anti-HCV, was 0.59% of 30-39 years old, 1.79% of 40-49 years old, 0.98% of 50-59 years old. For HEY-IgG was 3.48% of < or =9 years old, 6.05% of 10-19 years old, 8.53% of 20-29 years old, 19.29%-21.67% of 30- > or =60 years old.
  
  
  CONCLUSIONS
  The inoculation againt HAY and HBY is enhanced in the youngster population. HBsAg carrier and UCY infection is decreasing. The HEY infection in the Hid people is lower than the Han nationality.
authors.affiliation: National Institute for Viral Disease Control and Prevention, China CDC, Beijing 100052, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Lu
authors.forename: Hong-yu
authors.initials: HY
authors.lastname: Li
authors.forename: Rui-guang
authors.initials: RG
authors.lastname: Tian
authors.forename: Yong-zhen
authors.initials: YZ
authors.lastname: Jiang
authors.forename: Ya-ning
authors.initials: YN
authors.lastname: Xu
authors.forename: De-shan
authors.initials: DS
authors.lastname: Yu
authors.forename: Jian-xiang
authors.initials: JX
authors.lastname: Jiang
authors.forename: Sheng-li
authors.initials: SL
authors.lastname: Bi
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D006506:Hepatitis A / Q000097:blood / Q000276:immunology*; D006508:Hepatitis Antibodies / Q000097:blood; D006509:Hepatitis B / Q000097:blood / Q000276:immunology*; D006526:Hepatitis C / Q000097:blood / Q000276:immunology*; D016751:Hepatitis E / Q000097:blood / Q000276:immunology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D055815:Young Adult
chemical_list: D006508:Hepatitis Antibodies