Office of Disease Prevention and Control 12

Songkhla, Thailand

Office of Disease Prevention and Control 12

Songkhla, Thailand
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Ditsuwan T.,Office of Disease Prevention and Control 12 | Liabsuetrakul T.,Prince of Songkla University | Ditsuwan V.,Thaksin University | Thammapalo S.,Office of Disease Prevention and Control 12
Tropical Medicine and International Health | Year: 2012

Objectives To access the costs of standard indoor ultra-low-volume (SID-ULV) space spraying for controlling dengue vectors in Thailand. Methods Resources related to SID-ULV space spraying as a method to control dengue vectors between July and December 2009 were identified, measured and valued taking a societal perspective into consideration. Information on costs was collected from direct observations, interviews and bookkeeping records. Uncertainty of unit costs was investigated using a bootstrap technique. Results Costs of SID-ULV were calculated from 18 new dengue cases that covered 1492 surrounding houses. The average coverage of the SID-ULV was 64.4%. In the first round of spraying, 53% of target houses were sprayed and 44.6% in the second round, of which 69.2% and 54.7% received entire indoor space spraying. Unit costs per case, per 10 houses and per 100m2 were USD 705 (95% Confidence Interval CI, 539-888), 180 (95% CI, 150-212) and USD 23 (95% CI, 17-30). The majority of SID-ULV unit cost per case was attributed to productivity loss (83.9%) and recurrent costs (15.2%). The unit cost of the SID-ULV per case and per house in rural was 2.8 and 1.6 times lower than municipal area. The estimated annual cost of SID-ULV space spraying from 2005 to 2009 using healthcare perspective ranged from USD 5.3 to 10.3 million. Conclusions The majority of the cost of SID-ULV space spraying was attributed to productivity loss. Potential productivity loss influences the achievement of high coverage, so well-planned SID-ULV space spraying strategies are needed to reduce costs. © 2012 Blackwell Publishing Ltd.


PubMed | Office of Disease Prevention and Control 12
Type: Journal Article | Journal: Tropical medicine & international health : TM & IH | Year: 2012

To access the costs of standard indoor ultra-low-volume (SID-ULV) space spraying for controlling dengue vectors in Thailand.Resources related to SID-ULV space spraying as a method to control dengue vectors between July and December 2009 were identified, measured and valued taking a societal perspective into consideration. Information on costs was collected from direct observations, interviews and bookkeeping records. Uncertainty of unit costs was investigated using a bootstrap technique.Costs of SID-ULV were calculated from 18 new dengue cases that covered 1492 surrounding houses. The average coverage of the SID-ULV was 64.4%. In the first round of spraying, 53% of target houses were sprayed and 44.6% in the second round, of which 69.2% and 54.7% received entire indoor space spraying. Unit costs per case, per 10 houses and per 100 m(2) were USD 705 (95% Confidence Interval CI, 539-888), 180 (95% CI, 150-212) and USD 23 (95% CI, 17-30). The majority of SID-ULV unit cost per case was attributed to productivity loss (83.9%) and recurrent costs (15.2%). The unit cost of the SID-ULV per case and per house in rural was 2.8 and 1.6 times lower than municipal area. The estimated annual cost of SID-ULV space spraying from 2005 to 2009 using healthcare perspective ranged from USD 5.3 to 10.3 million.The majority of the cost of SID-ULV space spraying was attributed to productivity loss. Potential productivity loss influences the achievement of high coverage, so well-planned SID-ULV space spraying strategies are needed to reduce costs.

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