Under Torress-Cook, Pacific Hospital's infection rate for the so-called superbug MRSA is down to 0.01 per 1, 000 discharges, 430 times better than the national average.

CNN: Unsung heroes work hard to cut hospital-acquired infections

U. including the ones at Sinai-Grace Hospital cut its quarterly infection rate to zero.

NEWYORKER: The Checklist

Four times as many were perishing from infection and disease as were dying in battle, and the death rate in Nightingale's hospital was higher than in others until the Sanitary Commission arrived and flushed out the sewers upon which the hospital was built.

BBC: The lady without the lamp