title: [Study on the immuno-effects of recombinant hepatitis B vaccination in adults].
abstract: OBJECTIVE
  To evaluate the immuno-effects of hepatitis B (HB) vaccination in adults.
  
  
  METHODS
  Five groups were sampled by means of cluster sampling, and serum HBsAg, anti-HBs and anti-HBc were tested in every group at people aged from 18 to 50. Recombinant HB vaccine was injected to the ones that HBsAg, anti-HBs and anti-HBc were all negative. Concentration of anti-HBs in serum was tested after one year and three years of vaccination. Immuno-effects of recombinant HB vaccination in adults at different ages and between sexes, were then calculated.
  
  
  RESULTS
  Good immuno-effects of recombinant HB vaccination in adults were noticed. After one year and three years of vaccination with 5 micro g recombinant HB vaccine, the anti-HBs positive rates were 82.76%, 70.77% while the serum concentrations of anti-HBs were 55.91 mIU/ml and 35.41 mIU/ml respectively. When 10 micro g was used, the concentrations were 83.74%, 72.22%, 56.89 mIU/ml and 30.29 mIU/ml respectively. The effects did not show significant differences between different doses on 10 micro g and of 5 micro g. Concentration of anti-HBs reduced when time went by. The factors such as age and sex influenced the effects of immunity on recombinant HB vaccination.
  
  
  CONCLUSIONS
  Good immunity could be obtained when recombinant hepatitis B was vaccinated in vulnerable population aged 18 to 50.
authors.affiliation: Rizhao Public Health and Anti-epidemic Station, Rizhao 276800, China.
authors.forename: Feng-mei
authors.initials: FM
authors.lastname: Zhang
authors.forename: Qing-xin
authors.initials: QX
authors.lastname: Zhao
authors.forename: Jing-hua
authors.initials: JH
authors.lastname: Han
authors.forename: Quan-he
authors.initials: QH
authors.lastname: Zhou
authors.forename: Mao-ci
authors.initials: MC
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Miao
authors.forename: Ruo
authors.initials: R
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006509:Hepatitis B / Q000517:prevention & control*; D006510:Hepatitis B Antibodies / Q000097:blood; D006512:Hepatitis B Core Antigens / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000276:immunology; D017325:Hepatitis B Vaccines / Q000276:immunology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014611:Vaccination; D014614:Vaccines, Synthetic / Q000276:immunology*
chemical_list: D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens; D017325:Hepatitis B Vaccines; D014614:Vaccines, Synthetic