title: Case report of a haemovigilance investigation using phylogenetic analysis of HIV-1 in Brazil.
abstract: OBJECTIVE
  The aim of this work is to provide the first report of a transfusion-acquired HIV-1 infection and to verify transmission from the donor to the recipients using phylogenetic analysis of HIV-1 DNA sequences in a Brazilian blood bank.
  
  
  BACKGROUND
  Although haemovigilance procedures based on phylogenetic analysis of HIV have been reported in several countries, this type of study has yet to be conducted in Latin America.
  
  
  METHODS
  Upon identifying a HIV-1-positive repeat blood donor by enzyme immunoassay (EIA) blood screening, all recipients of the donor's previous donation were identified and tested for HIV-1 by EIA, nucleic acid amplification test and HIV-1 DNA sequencing and phylogenetic analysis.
  
  
  RESULTS
  One of the recipients tested positive for HIV-1. The phylogenetic analysis showed a high genetic similarity among the viruses, thus supporting the hypothesis of transmission from the donor to the recipient.
  
  
  CONCLUSIONS
  Phylogenetic analysis of HIV-1 DNA sequences has been a decisive tool in verifying suspected transmission of the virus from blood donor to recipient in Brazil.
authors: Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil.
authors: A R
authors: AR
authors: Pinto
authors: A
authors: A
authors: Petry
authors: T
authors: T
authors: Gräf
authors: R
authors: R
authors: Vandresen
authors: E
authors: E
authors: Kupek
mesh_terms: D000328:Adult; D001771:Blood Banks; D001782:Blood Donors; D058731:Blood Safety; D001803:Blood Transfusion; D017848:Blood-Borne Pathogens; D001938:Brazil; D004279:DNA, Viral / Q000235:genetics*; D005260:Female; D015658:HIV Infections / Q000235:genetics / Q000635:transmission; D015497:HIV-1 / Q000235:genetics*; D006801:Humans; D010802:Phylogeny
chemical_list: D004279:DNA, Viral