We come in contact with germs everywhere: the store, school, and in our homes. Not all bacteria make us sick, but those that do can be combatted with antibiotics. First discovered in 1928, penicillin is just one of many antibiotics that are used to treat those who are sick with a bacterial infection or have had surgery. Your readers will find out about the development of antibiotics and to how they work in the body. Resistance and the future of antibiotics are covered, juxtaposed with medical treatments used to help people before antibiotics.