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Rapid, Low-Cost, Point-of-Care Diagnosis of Loa loa Microfilaremia by Handheld Fluorescence Photodetection

Jason Andrews and colleagues from Massachusetts General Hospital in the U.S. have developed a low-cost handheld device that allows rapid and quantitative detection of Loa loa helminthic parasites in the bloodstream by fluorescent photometry. Quantitative detection is important because individuals with high levels of Loa loa can be fatally sensitive to a widely administered drug used to treat another common parasitic worm Onchocerca volvulans. Conventional detection by microscopy is labor-intensive, time-consuming, and often impractical in the field. They will calibrate the device, and then conduct a pilot study at an established field site.

More information about New Approaches in Model Systems, Diagnostics, and Drugs for Specific Neglected Tropical Diseases (Round 10)

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The Bill & Melinda Gates Foundation is part of the Grand Challenges partnership network. Visit www.grandchallenges.org to view the map of awarded grants across this network and grant opportunities from partners.