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In early May, a wing of Ohio State University’s Wexner Medical Center was eerily empty. The space had been cleared of patients as the pandemic raged. But it wasn’t going to waste.

Inside, a group of nurse practitioners were playing a game of digital tag. Lauren Chrzanowski, who has type 1 diabetes, was wearing a continuous glucose monitor, an implant with a transmitter that sends real-time glucose measurements to a dedicated receiver — when they’re close enough, anyway. On that day, she was trying to figure out just how far away her CGM could be from its receiver and still work.

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