Gunawardene, Y.I.N.S.; de Silva, N.R.; Abeyewickreme, W.
(Sri Lanka College of Microbiologists, 1999)
Dengue Fever (DF) Dengue Haernorrhagic Fever (DHF) is now a significant problem in Sri Lanka. The incidence of DHF has increased cyclically since the first recognized outbreak in 1989. Of the 203 suspected DHF cases recorded ...