Pearl Kenderick and Grace Eldering: The American Scientists Who Developed a Vaccine for Whooping Cough

At its height in the 1930s, whooping cough killed more American infants than polio, measles, tuberculosis, and all other childhood diseases combined. Thanks to Eldering and Kendrick's vaccine, whooping cough has become preventable, and the vaccine has been credited with saving over 15 million lives so far.