| Abstract: | The objective of this study was to evaluate the effectiveness of Aedes
aegypti mass trapping using the sticky trap MosquiTRAP (MQT) by
performing a cluster randomised controlled trial in Manaus, state of Amazonas,
Brazil. After an initial questionnaire and baseline monitoring of adult Ae.
aegypti abundance with BG-Sentinel (BGS) traps in six clusters, three
clusters were randomly assigned to the intervention arm where each participating
household received three MQTs for mass trapping during 17 months. The remaining three
clusters (control arm) did not receive traps. The effect of mass trapping on adult
Ae. aegypti abundance was monitored fortnightly with BGS traps.
During the last two months of the study, a serological survey was conducted. After
the study, a second questionnaire was applied in the intervention arm. Entomological
monitoring indicated that MQT mass trapping did not reduce adult Ae.
aegypti abundance. The serological survey indicated that recent dengue
infections were equally frequent in the intervention and the control arm. Most
participants responded positively to questions concerning user satisfaction.
According to the results, there is no evidence that mass trapping with MQTs can be
used as a part of dengue control programs. The use of this sticky trap is only
recommendable for dengue vector monitoring. |
