Bypassing the Petri Dish

Genomic diagnostic tests—which produce results in hours rather than weeks—offer the first sea change in diagnostic testing since the 19th century Petri dish method.
A clutch of start-ups are hard at work developing their own versions. One touts a “coffee maker-size” product and promises results in under an hour.
The method could also help quell the growing crisis of antibiotic-resistant superbugs. By identifying infections quickly, doctors can avoid “shot-in-the-dark” antibiotics that spur resistance.
But few products are FDA approved, and many are still striving for 100% accuracy.

They’re also quite expensive—up to $3,000—and insurance rarely covers the cost.  
The New York Times

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