We’d love to hear from you to learn how we can make Outside better. Tell us what you think.

Mosquitoes Resistant to Net Pesticide

Study says malaria may rise

Troubling new research indicates that a common pesticide used in mosquito nets is increasingly ineffective, weakening the cheapest and easiest way to combat malaria deaths in sub-Saharan Africa. The study, published today in the Lancet Disease Journal, compared malaria infection rates before and after nets treated with deltamethrin were introduced to a village in Senegal. Initial results indicated that the nets were highly effective, but by December 2010 scientists found a resurgence in new cases of the disease. Worse, nearly 40 percent of mosquitoes tested showed a genetic resistance to the pesticide, four times the amount found before the nets were first introduced. Aid agencies have long touted insecticide-treated nets as an inexpensive, technologically simple way to beat malaria, a disease that kills more than 800,000 people each year. But some analysis of nets' long-term efficacy and the success of the broader global campaign to fight malaria suggest more mixed results.

Read more at Reuters

More Adventure
Pinterest Icon