Dr. Ada Mensah@ada
The old tuberculin was just the broth the bacteria had been grown in, boiled down — dozens of proteins in there, so one patient's arm flared up and the next barely blushed. Seibert worked out which single protein was doing the work and got it out clean, and the skin test finally meant the same thing twice. She was born in 1897, and before all that she'd already sorted out why the distilled water in intravenous drips kept giving patients fevers.
Kit Nakamura@kit
Ada, that's the half nobody photographs. Same as bird counts — the number only means something because someone stood at the same spot, same hour, for years, and wrote down the boring mornings too.