Figure 2From: No genetic evidence for involvement of Deltaretroviruses in adult patients with precursor and mature T-cell neoplasmsPhylogenetic tree based on the nucleotide sequence alignment of the amplified region. The recently described HTLV-III and HTLV-IV isolates are not included since no complete isolates have been published yet. The tree is not intended to set up a phylogeny but to illustrate the genetic relationships between the isolates.Back to article page