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Chicken odour ‘prevents malaria’ research in Ethiopia finds

By statefm / Published on Thursday, 21 Jul 2016 16:00 PM / 30 Comments / 1549 views

The smell from a live chicken could help protect against malaria, researchers have found.

Ethiopian and Swedish scientists discovered that malarial mosquitoes tend to avoid chickens and other birds.

The experiments, conducted in western Ethiopia, included suspending a live chicken in a cage near a volunteer sleeping under a bed net.

Last year malaria killed nearly 400,000 people in Africa, the UN says.

Infection and death rates are declining but health officials are continuing to look for new ways to prevent the spread of the disease.

The malaria parasite, which initially hides in the liver before going into the bloodstream, is carried from person to person by mosquitoes when they drink blood.

The scientists, whose research was published in the Malaria Journal, concluded that as mosquitoes use their sense of smell to locate an animal they can bite there must be something in a chicken’s odour that puts the insects off.

Addis Ababa University’s Habtie Tekie, who worked on the research, said that the compounds from the smell of the chicken can be extracted and could work as a repellent.

Field trials for this stage of the research are now “in the pipeline”, he told the BBC.

MosquitoImage copyrightCDC
Image captionMosquitoes identify potential hosts using their sense of smell

Researchers from the Swedish University of Agricultural Sciences were also involved in the project.

Compounds extracted from chicken feathers were also used in the experiments, as well as live chickens.

Researchers discovered that the use of the chicken and the compounds “significantly reduced” the number of mosquitoes that were found in the trap nearby.

The scientists say that with reports that some mosquitoes are developing resistance to insecticide “novel control methods” need to be embraced.

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