Laboratory-based advances in bacteriology and immunology in the late-nineteenth century helped treat and prevent these deadly diseases. By 1930, the successful immunization of thousands of children demonstrated the promise and force of the laboratory in infectious disease control. The development of antibiotics in the 1940s further revolutionized the treatment of infectious bacterial disease. Still, diseases like typhoid fever, identified in the quarantine poster to the left, remain very common worldwide over 60 years after the development of the first antibiotics. This poster illustrates the seriousness of its message in both style and content. The headline names the disease in large, distinctive font and the accompanying message informs the viewer that removal of the notice is punishable by a fine.
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