On a yacht off St. Barts, the future of covid testing is taking shape

Screening involves the customer pouring in a little more liquids, with a lower-tech approach that relies on enzymes, not electronic devices, to create that amplification reaction. It has an app, but no Bluetooth, and the results reach mobile phones in about an hour. Cue’s method, by contrast, relies on electrochemistry to create what is basically a miniature PCR machine, produced in his large Southern California warehouse.

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