Emerging Infectious Disease ISSN: 1080-6059

Severe Dengue Epidemics in Sri Lanka, 2003–2006

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)

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Figure 7

Phylogram of dengue serotype 4 viruses (DENV-4) from Sri Lanka (SL), 1978–2004, and other DENV-4 viruses. The tree is based on a 296-bp for positions 787–1083 coding for portions of premembrane and envelope proteins. The tree was constructed as described in Figure 4 and rooted by using a sylvatic DENV-4 strain. Classification and naming of different DENV-4 genotypes is based on the report by Rico-Hesse (5). Scale bar represents number of base substitutions per site.

Figure 7. Phylogram of dengue serotype 4 viruses (DENV-4) from Sri Lanka (SL), 1978–2004, and other DENV-4 viruses. The tree is based on a 296-bp for positions 787–1083 coding for portions of premembrane and envelope proteins. The tree was constructed as described in Figure 4 and rooted by using a sylvatic DENV-4 strain. Classification and naming of different DENV-4 genotypes is based on the report by Rico-Hesse (5). Scale bar represents number of base substitutions per site.

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¹Deceased.

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