title: [Epidemiologic study and HLA analysis of highly exposed to HIV but persistently seronegative subjects (HEPS) in commercial blood donors in China].
abstract: BACKGROUND
  To investigate epidemiology and HLA typing of highly exposed to HIV but persistently seronegative subjects (HEPS) in commercial blood donors in China.
  
  
  METHODS
  This was a cohort study for epidemiologic characteristics of highly exposed but persistently seronegative subjects. PCR with sequence-specific primer and PCR-SSP for HLA typing were applied.
  
  
  RESULTS
  Eight HEPS were identified. Compared HLA typing with seropositive couple, high frequency of HLA-a24, HLA-B40 genotyping was observed.
  
  
  CONCLUSIONS
  Highly exposed to HIV but persistently seronegative subjects in commercial blood donors in China had high frequency of HLA-A24 and HLA-B40 genotype.
authors.affiliation: Beijing Ditan Hospital, Beijing 100011, China.
authors.forename: Ke-yi
authors.initials: KY
authors.lastname: Xu
authors.forename: Tao
authors.initials: T
authors.lastname: Dong
authors.forename: Wen-hui
authors.initials: WH
authors.lastname: Lun
mesh_terms: D000293:Adolescent; D000328:Adult; D001782:Blood Donors; D002681:China / Q000453:epidemiology; D015331:Cohort Studies; D005260:Female; D006678:HIV / Q000276:immunology; D015483:HIV Antibodies / Q000097:blood; D015658:HIV Infections / Q000453:epidemiology* / Q000821:virology; D018023:HIV Seronegativity; D006680:HLA Antigens / Q000235:genetics; D015234:HLA-A Antigens / Q000235:genetics; D059871:HLA-A24 Antigen; D006650:Histocompatibility Testing / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D055815:Young Adult
chemical_list: D015483:HIV Antibodies; D006680:HLA Antigens; D015234:HLA-A Antigens; D059871:HLA-A24 Antigen