Table 1 Effectiveness of TIRS applied at contact locations in preventing dengue symptomatic infections during the 2008–2009 DENV outbreak that occurred in Cairns, Australia.
ScenarioTreatmentTotal locationsNo. of DENV-positive locationsProportion infectionEffectiveness
All casesIRS1007520.0520.861
Control3691370.371
Excluding first 10 days*IRS817110.0130.961
Control3251130.348

*This scenario excludes the first 10 days after intervention to exclude transmission events likely originated before the intervention.