Abundance and dengue virus dynamics of Aedes aegypti and Aedes albopictus in selected urban areas of Kegalle and Peradeniya

Distribution of dengue vectors, Aedes aegypti and Aedes albopictus, in a few selected semi-urban areas of the Central Province of Sri Lanka

“…Dengue NS1 antigen can be used to detect the presence of dengue virus in mosquitoes. 13 However, in the present study, the NS1 antigen test was negative in all emerged A. albopictus and A. aegypti pools. This might be because adult mosquitoes which emerged directly from the larvae were tested rather than those directly from the field.…”

“…Findings of the current study are supported by a few other studies done in Sri Lanka in similar urban and suburban regions. 10,11 A study on the prevalence and breeding habitats of A. aegypti and A. albopictus in the semi-urban areas of Kandy and Kurunegala with contrasting climatic patterns over a 12 month period from June 2007 to May 2008 reported the predominance of A. albopictus in the study areas. 9 Another study carried out by Ekiriyagala et al 10 from July to September 2011 from selected urban and suburban areas of Kegalle and Peradeniya also found A. albopictus to be the more abundant vector.…”