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International Journal of Mosquito Research
Vol. 2, Issue 4, Part A (2015)
Wavelet analysis of dengue transmission pattern in Sri Lanka
Author(s): Thiyanga Talagala, Ravindra Lokupitiya
Abstract: Dengue fever is a deadly infectious mosquito borne disease that has placed an enormous economic burden upon the health system in Sri Lanka. The geographic distribution of dengue, both classical dengue fever and its more severe form dengue hemorrhagic fever has been expanded dramatically in recent decades. However, we have a limited understanding of the disease transmission pattern in Sri Lanka. The objective of this study is to identify the epidemic outbreak patterns of dengue cases in 25 districts in Sri Lanka. Wavelet analyses were performed on weekly notified dengue cases from January 2009 to September 2014 to explore periodicity in dengue counts. Dengue dynamics showed multiple periodic patterns (1-8 weeks, 26 weeks and 52 weeks) across twenty five districts which can be divided into two groups based on wavelet cluster analysis. These findings will provide a scientific basis for dengue control and prevention in Sri Lanka.
How to cite this article:
Thiyanga Talagala, Ravindra Lokupitiya. Wavelet analysis of dengue transmission pattern in Sri Lanka. 2015; 2(4): 13-18.