Includes bibliographical reference.

"Louis was born at a time when doctors were still trying to figure out what made people sick. As a teen, he discovered a love for science. As an adult, his curiosity led him to discover that microbes cause illnesses, and his groundbreaking research resulted in the creation of vaccines that have saved countless lives around the world. This amazing story of one of the fathers of modern medicine features a fact and photo section at the back."--