Medical Research Council - London Institute of Medical Sciences

Now in our 9th year of bringing you beautiful imagery from biomedical science every day

Better Net

Improving bed nets by treating them with a chemical cocktail reduces incidence of malaria

08 September 2018

Better Net

In the UK and many temperate countries, mosquitoes are mostly just a seasonal annoyance. But in countries where malaria is prevalent, they can be deadly. The malaria parasite, transmitted by the insects’ bite, infects approximately 200 million people a year, killing roughly half a million. Bed nets like the ones pictured, typically treated with an insecticide, are an effective way of preventing bites, but, as the results of a recent trial show, such nets can be improved. A new type of net treated with a chemical cocktail – an insecticide and a hormone that limits mosquito reproduction – has been tested in Burkina Faso where, compared with traditional nets, the new ones led to a 12 percent reduction in the number of malaria cases in two years. That’s a sizeable drop – if the results were extrapolated to the country’s population, the new nets could prevent more than a million cases of malaria.

Written by Ruth Williams

Search The Archive

Submit An Image

What is BPoD?

BPoD stands for Biomedical Picture of the Day. Managed by the MRC London Institute of Medical Sciences the website aims to engage everyone, young and old, in the wonders of biomedicine. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

Read More

BPoD is also available in Catalan at with translations by the University of Valencia.