Surveillance and Control of Dengue Hemorrhagic Fever (DHF) in Southern Areas of North-Eastern, Thailand

  • Chaikoolvatana A.


Dengue fever (DF) and Dengue Hemorrhagic Fever (DHF) are important public health diseases mainly transmitted by Aedes aegypti especially in southern areas of North-Eastern Thailand. The ArcGIS database was developed via software called “ArcView ver 3.2”. Fifteen villages from three provinces, Ubon Ratchathani, Sri-Sa-Ket, and Amnart Charoen, were selected for the study based on the high number of cases and morbidity rates, especially during the pre-outbreak period. Larval vector surveys showed all dengue indices in the villages were normally higher during the pre-outbreak period compared to the outbreak and post-outbreak periods. Comparisons between provinces revealed that Sri-Sa-Ket had the highest dengue indices during the outbreak period. All dengue indices during and in the post-outbreak periods decreased. In all provinces, results showed the overall post-scores were higher than the pre-scores for DHF perception and prevention behaviors.