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Clin Diagn Lab Immunol. 2001 Sep;8(5):884-90.

Molecular investigation of transmission of human immunodeficiency virus type 1 in a criminal case.

Author information

  • 1Retrovirus Laboratory, Department of Virology, Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen S, Denmark. rma@ssi.dk

Abstract

Very few criminal cases involving human immunodeficiency virus type 1 (HIV-1) transmission have been described. We report on an HIV-1 transmission case with a child being infected by an HIV-1-positive man. The objective was to determine through molecular epidemiology and phylogenetic analyses whether HIV-1 from the HIV-1-positive man could be the source of infection in the HIV-1-positive child, as claimed by the authorities. We conducted genetic analysis of three different parts of the HIV-1 genome (gag, pol, and env) by PCR, direct-sequencing, and phylogenetic analyses. We used maximum likelihood, maximum parsimony, and neighbor-joining methods for the phylogenetic analyses to investigate whether the sequences from the man and the child were related. We found that the viral sequences from the man and the child formed separate clusters in all of the phylogenetic analyses compared to the local controls. A unique amino acid deletion was identified in the C2-V3-C3 region of the env gene in the virus from the man and the child. These results were used in the criminal court to elucidate whether the virus from the man was related to the virus from the child. In summary, the results from the phylogenetic analyses, the sequence distances between the virus from the man and the virus from the child, and the identification of the unique molecular fingerprint in the env gene together indicated that the virus from the man and the virus from the child were epidemiologically linked.

PMID:
11527797
[PubMed - indexed for MEDLINE]
PMCID:
PMC96165
Free PMC Article

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