1. Kuno, G., Chang, G. J., Tsuchiya, K. R., Karabatsos, N. & Cropp, C. B. Phylogeny of the genus Flavivirus. J. Virol. 72, 73–83 (1998).
2. Lindenbach, B. D. & Rice, C. M. in Fields Virology (eds Knipe, D. M. & Howley, P. M.) 991–1041 (Lippincott Williams & Wilkins, Philadelphia, 2001).
3. Burke, D. S. & Monath, T. P. in Fields Virology (eds Knipe, D. M. & Howley, P. M.) 1043–1125 (Lippincott Williams & Wilkins, Philadelphia, 2001).
4. Gubler, D. J. Epidemic dengue/dengue hemorrhagic fever as a public health, social and economic problem in the 21st century. Trends Microbiol. 10, 100–103 (2002).
5. WHO. Dengue factsheet. [online], < http://www.who.int/mediacentre/factsheets/fs117/en/ > (2002).