สถาบันวิจัยวิทยาศาสตร์สาธารณสุข

National Institute of Health of Thailand

Survey of Aedes density by random sampling method for dengue haemorrhagic fever surveillance

Authors : Chitti Chansang*, Usavadee Thavara*, U-ruyakorn Chansang*, Apiwat Tawatsin*, Supon Paosriwong*, Prakong Phan U-rai*


Affililations:       *Division of Medical Entomology, Department of Medical Sciences 

           
Source:             Journal of Health Science 1997; 6(1): 82-90
           
Language:        Thai with English abstract
 
Abstract:
 
The objectives of this study were (1) to determine the optimum number of houses for survey (2) to determine to transform data of positive containers into appropriate from for statistic testing, and (3) to compare among the three methods of Aedes vector surveys : larval, egg and adult survey. The larval survey were carried out in seventy three places. The three methods of vector surveys were conducted in village no. 6, Tambon Banphae, Muang district, Rayong province. The results from statistical analysis of random sampling method showed that the optimum number of houses for survey should be between thirty and fifty eight. In practice, the recommended number could be forty per study area or village. The distribution pattern of positive containers were transformed by X0.3 into normal distribution. Comparing the three methods, the larval survey was the most suitable survey followed by egg and adult survey.