Category: and the Salk polio vaccine in the early 1950s
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even with the introduction of penicillin in about 1940
The standards of vaccination studies and practices have extensively changed throughout the course of the last century, as advancement in medical technology has propelled our research and medicine. Before the 1900s, diseases were much more deadly. For instance, tuberculosis, as anyone exposed, would be diagnosed with a terminal illness and would be expected to die.…