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Detection Dogs
This is Freya, a springer spaniel who is very good at her job.
Durham University, Medical Detection Dogs, & London School of Hygiene & Tropical Medicine
▼ Dogs are the superheroes we don’t deserve. They look incredible in capes, can parse human speech, and can even read your mood. They also might be able to sniff out malaria.
A group of researchers in the United Kingdom trained dogs to detect malaria in people infected with the disease but who had no fever or physical symptoms. They presented the resultsthis week at the annual meeting of the American Society of Tropical Medicine and Hygiene in New Orleans.
Malaria is a global problem. Despite $2.7 billion in funding to eradicate the disease, malaria still infected 216 million people and killed 445,000 worldwide in 2016, according to the World Health Organization. Some countries have had success—Sri Lanka, for example, declared itself malaria-free that same year—but others, like South Africa, have fallen behind the WHO’s goal of eliminating malaria in that country by the year 2020.
The effort to train malaria-sniffing dogs developed out of a paperpublished earlier this year that identified the smell of malaria, says James Logan, head of the disease control department at the London School of Hygiene and Tropical Medicine who was involved in both studies. Logan and his colleagues found people infected with the malaria parasite, even if they show no symptoms of the disease, give off a distinct perfume of aldehyde compounds. Mosquitoes happen to love this smell, and will seek out the person putting this funk out into the world. If mosquitoes can home in on these compounds, Logan and his colleagues wondered if dogs could do the same.
It’s not a totally crazy idea—dogs are known for their sense of smell, and specially trained puppers can sniff out cancer. Dog sniffers could be faster and less invasive than current diagnostic tests, says Logan, which involve taking blood samples and analyzing them with special equipment. And if dogs could detect the smell on people who experience no symptoms of malaria, it would be possible to stop those individuals from spreading malaria unknowingly. (▪ ▪ ▪)
► Please, read the full note/article here: Source |
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