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Volume 5, Number 1—February 1999
Research

Dual and Recombinant Infections: An Integral Part of the HIV-1 Epidemic in Brazil

Artur Ramos*†, Amilcar Tanuri†, Mauro Schechter†, Mark A. Rayfield*, Dale J. Hu*, Maulori C. Cabral†, Claudiu I. Bandea*, James Baggs‡, and Danuta Pieniazek*Comments to Author 
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Universidade Federal do Rio de Janeiro, Brazil; ‡Emory University, Atlanta, Georgia, USA

Main Article

Figure 2

Phylogenetic classification of HIV-1 sequences from Brazilian patients (denoted with BR prefix). The trees were constructed on the basis of DNA sequences of prt (a), env (b), gag-p24 (c), and gag-p17 (d) by the neighbor-joining method. Numbers at the branch nodes connected with subtypes indicate bootstrap values. An arrow indicates dually infected specimens; an asterisk shows viral sequences, which clustered into different lineages depending on which parts of viral genome were analyzed; ! repres

Figure 2. Phylogenetic classification of HIV-1 sequences from Brazilian patients (denoted with BR prefix). The trees were constructed on the basis of DNA sequences of prt (a), env (b), gag-p24 (c), and gag-p17 (d) by the neighbor-joining method. Numbers at the branch nodes connected with subtypes indicate bootstrap values. An arrow indicates dually infected specimens; an asterisk shows viral sequences, which clustered into different lineages depending on which parts of viral genome were analyzed; ! represents hypermutated sequences; ? represents unclassified subtype of p24 gag sequences. The distinct HIV-1 subtypes are delineated. The scale bar indicates an evolutionary distance of 0.10 nucleotides per position in the sequence. Vertical distances are for clarity only. GenBank accession numbers: prt [AF099155-99171;AF079986-79989; AF079991; and AF079994-79996]; env [AF113560-113576]; p17gag [AF115443-115451]; p24gag [AF115780-115797].

Main Article

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