Outdoor Host Seeking Behavior of Malaria Mosquitoes on Bioko Island
Author Information
Author(s): Michael Reddy, Hans J Overgaard, Simon Abaga, Vamsi P Reddy, Adalgisa Caccone, Anthony E Kiszewski, Michel A Slotman
Primary Institution: Yale University
Hypothesis
The study evaluates the importance of outdoor host seeking behavior of Anopheles gambiae mosquitoes in relation to malaria vector control interventions.
Conclusion
An. gambiae mosquitoes seek hosts outdoors as much as indoors, which may undermine the effectiveness of indoor-based malaria control measures.
Supporting Evidence
- An. gambiae mosquitoes were found to seek hosts outdoors at least as much as indoors.
- Approximately 40% of An. gambiae were feeding outdoors when people were active.
- Repeated sampling showed outdoor biting behavior was consistent across seasons.
Takeaway
Mosquitoes that spread malaria are biting people outside as much as inside, which means the usual ways to stop them might not work well.
Methodology
Human landing collections were conducted indoors and outdoors in three villages during different seasons over three years to assess mosquito host-seeking behavior.
Potential Biases
Potential bias in human landing collections due to varying outdoor human activity levels was not measured.
Limitations
The study did not include pre-intervention data to compare changes in mosquito behavior over time.
Participant Demographics
The study involved communities in three rural villages on Bioko Island.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website