In the early twentieth century,the vaccine that raised the most safety concerns in the United States was for the prevention of

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In the early twentieth century, the vaccine that raised the most safety concerns in the United States was for the prevention of tuberculosis. This was primarily due to the use of live bacteria in the vaccine, which could cause serious side effects, including the development of tuberculosis itself. It was also difficult to produce a consistent vaccine, which added to the safety concerns.

In the Early Twentieth Century,the Vaccine That Raised the Most