Median knock-down time as a new method for evaluating insecticide-treated textiles for mosquito control
2008

Evaluating Insecticide-Treated Textiles for Mosquito Control

Sample size: 11 publication Evidence: moderate

Author Information

Author(s): Skovmand Ole, Bonnet Julien, Pigeon Olivier, Corbel Vincent

Hypothesis

Is the median knock-down time (MKDT) dependent on insecticide dosage on various treated materials?

Conclusion

The study presents a new method for measuring regeneration time of insecticide-treated nets, showing that MKDT is a reliable indicator of insecticide bioavailability.

Supporting Evidence

  • MKDT was a linear function of log insecticide dosage on glass and nettings.
  • Mortality data were either 0 or 100% for most concentrations except for a narrow range.
  • The regeneration time of the net increased with the number of washes.

Takeaway

This study found a new way to check how long it takes for mosquito nets to work again after washing, which helps keep people safe from malaria.

Methodology

The study measured the median knock-down time (MKDT) of mosquitoes on treated surfaces after washing to determine regeneration time.

Limitations

The method may not account for all variables affecting insecticide effectiveness, such as mosquito behavior.

Participant Demographics

Anopheles gambiae s.s. Kisumu strain mosquitoes were used, which are fully susceptible to insecticides.

Statistical Information

P-Value

0.018

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1186/1475-2875-7-114

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