Nalaka Kanakaratne, Wahala M.P.B. Wahala, William B. Messer, Hasitha A. Tissera, Aruna Shahani, Nihal Abeysinghe, Aravinda M. de Silva, and Maya Gunasekera1
Author affiliations: Genetech Research Institute, Colombo, Sri Lanka (N. Kanakaratne, M. Gunasekera); University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA (W.M.P.B. Wahala, W.B. Messer, A.M de Silva); Ministry of Health, Colombo (H.A. Tissera, N. Abeysinghe); Apollo Hospital, Colombo (A. Shahani)
Figure 5. Phylogram of dengue serotype 2 viruses (DENV-2) from Sri Lanka (SL), 1981–2004, and other DENV-2 viruses. The tree is based on a 239-bp fragment for positions 2311–2550 coding for amino acids at the envelope protein/nonstructural protein 1 junction. The tree was constructed as described in Figure 4 and was rooted by using a DENV-2 sylvatic strain. Classification and naming of different DENV-2 genotypes is based on the report by Rico-Hesse (5). Scale bar represents number of base substitutions per site.
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