And so as soon as his newborn incubator had been installed at Maternité, the fragile infants warmed by hot water bottles below the wooden boxes, Tarnier embarked on a quick study of five hundred babies. The results shocked the Parisian medical establishment: while 66 percent of low-weight babies died within weeks of birth, only 38 percent died if they were housed in Tarnier’s incubating box. You could effectively halve the mortality rate for premature babies simply by treating them like hatchlings in a zoo.
