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One of the ways to counter the AIDS epidemic on a global scale is by first, education and then second, detection. Detection is expensive, but there's also a better solution. Putting an AIDS clinic in a $1 card helps.

The mChip can diagnose HIV and syphilis in 15 minutes, and it only costs a dollar. It has a one hundred percent detection rate, although there's a 4-6% chance of a false positive. That alone is a high number already to sit on. Not bad at all.

The mChip was developed by researchers at the Columbia University and they hope to debut it in Rwanda, where results will be sent to remote servers for easy patient organization. [Columbia via FastCo]