By 1914, Dr. Joseph Goldberger had spent fifteen years fighting epidemics of yellow fever, typhus, dengue fever, and typhoid fever. These infectious diseases swept through populations, spreading from person to person, through contaminated water, mosquitoes, fleas, and lice. The resulting epidemics were devastating – in 1905, 900 people in New Orleans died from yellow fever. Fortunately, the recent acceptance of germ theory, which states that microorganisms (like bacteria and viruses) can ca...
