Sunday, February 8, 2015

Now there’s a way to diagnose HIV with a smartphone

Researchers at Columbia University have developed a gadget that can test for syphilis and HIV via a smartphone or tablet.

Here’s how it works: The “dongle” device takes a prick of blood and tests it to see whether there are a higher-than-normal number of the antibodies that fight HIV and syphilis in the blood. That immune system reaction indicates that the patient is positive, explains Wan Laksanasopin, a biomedical engineering PhD student at Columbia who helped develop the device.
The dongle attaches to any smartphone or tablet through the audio jack, and the device’s app reads the results, giving a diagnosis in about 15 minutes, Laksanasopin tells Quartz. (The team has so far only developed an iOS app for Apple devices.) The app provides directions to the health care worker administering the test, as well as the results.
Offering a simple, mobile method to test for HIV and syphilis could make a big difference in developing countries, particularly in helping to prevent mother-to-child transmission of HIV. Syphilis can put a child at greater risk for HIV, and for pregnant women it can cause birth complications or neonatal death, says Laksanasopin.
The mobility of the device means that health care workers can go door to door to provide tests, instead of requiring people to come to clinics, which patients may avoid for reasons ranging from stigma against HIV to transportation difficulties.
The dongle costs $34 to make (much less expensive than other options), while the cartridge needed for each test costs $2, Laksanasopin says.
While promising, the dongle still has some bugs, and isn’t ready for widespread use just yet. The researchers tested the device with 96 patients in Rwandan clinics and testing centers, and found that it sometimes results in false positives, Laksanasopin said. The results of those tests were published in the journal Science Translational Medicine.
This isn’t the first attempt to develop HIV-testing technology for remote places. The US National Institutes of Health funded the development of a device that uses a chemical reaction to test blood samples for HIV, for example, though that process can take longer than an hour.




Related Posts:

  • JK to launch Africa-China young leaders' forum UVCCM Secretary General, Sixtus Mapunda. President Jakaya Kikwete is expected to be the guest of honour at an international forum titled ‘Africa–China young leaders’ forum’ to be held in Arusha later this mo… Read More
  • Swala launches 49bn/- trust for community development Swala Oil and Gas (Tanzania) plc has launched Swala Energy Trust Company Limited (the “Trust”).  The Trust will own 7.5 million shares in Swala and will invest profits from the gradual sale of the same to support a… Read More
  • UN urges more action to achieve gender equality To mark International Women's Day, senior United Nations officials highlighted the Beijing Declaration and Platform for Action, a historic roadmap signed by 189 governments 20 years ago that set the agenda for realizing w… Read More
  • Home care best for Aids Researchers now believe that the number of patients dying with advanced HIV/Aids can be cut down if governments in Africa invest in improving the patients’ home care and adopt low-cost interventions. In a clinical … Read More
  • Tanga Cement yatoa msaada kwa wahanga wa mafuriko Kahama. Mkuu wa Mkoa wa Shinyanga, Ally Rufuga (katikati) akipokea sehemu ya msaada wa vitu mbalimbali vyenye thamani ya zaidi ya sh milioni 17 kutoka kwa Meneja Biashara wa Kampuni ya Saruji Tanga (Tanga Cement Plc), Mattheus Ro… Read More

0 comments:

Post a Comment