What is the mechanism by which insecticide-treated bed nets (ITNs) reduce malaria transmission beyond their physical barrier effect?...

Question

What is the mechanism by which insecticide-treated bed nets (ITNs) reduce malaria transmission beyond their physical barrier effect?

Accepted Answer

They kill mosquitoes that land on the treated net surface through contact toxicity, reducing the overall vector population and longevity (mass killing effect)

Answer

They produce a scent that attracts mosquitoes away from humans

Answer

They reduce humidity inside the net, making the environment unsuitable for parasites

Answer

They emit ultrasonic waves that repel mosquitoes

Answer

They only work as physical barriers

uk-dtmh MCQ (SBA): ITN Dual Mechanism

What is the mechanism by which insecticide-treated bed nets (ITNs) reduce malaria transmission beyond their physical barrier effect?