title: [Residual risk research of HIV infection after blood screening in one county in China].
abstract: OBJECTIVE
  To estimate the risk of HIV infections from blood transfusions, to evaluate existing blood screening measures, and to make recommendations to improve current blood screening practices.
  
  
  METHODS
  Research was conducted in a county blood station. A statistical model and retrospective method were used to analyse the data.
  
  
  RESULTS
  Between June 1995 and March 1998, 19 blood donors tested positive for HIV antibodies and among them, 7 were repeat blood donors. Twenty - two blood recipients were identified from these 7 donors during six months, 9 are still alive today, while one patient was infected with HIV from a blood transfusion while undergoing an operation. The residual risk of the blood station using a statistical model and retrospective methods were 1/1,773 - 1/28,867 and 1/2,008 - 1/2,730 donations respectively.
  
  
  CONCLUSIONS
  The residual risk of HIV after screening in the county blood station was high. We recommend further improvements to current blood screening practices.
authors.affiliation: National Center for AIDS Prevention and Control, Beijing 100050, China.
authors.forename: X
authors.initials: X
authors.lastname: Zheng
authors.forename: Z
authors.initials: Z
authors.lastname: Mei
authors.forename: C
authors.initials: C
authors.lastname: Wang
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: P
authors.initials: P
authors.lastname: Guo
authors.forename: X
authors.initials: X
authors.lastname: Qiao
authors.forename: A
authors.initials: A
authors.lastname: Liu
authors.forename: Y
authors.initials: Y
authors.lastname: Mao
mesh_terms: D015492:AIDS Serodiagnosis / Q000706:statistics & numerical data; D000328:Adult; D001782:Blood Donors / Q000706:statistics & numerical data; D017848:Blood-Borne Pathogens; D002681:China / Q000453:epidemiology; D005260:Female; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission*; D006679:HIV Seropositivity / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D065227:Transfusion Reaction