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Which of the following was not a medical innovation in the 1800s that improved the standard of living during the Industrial Revolution?(1 point)

Edward Jenner developed a smallpox vaccine that led to a dramatic decrease in deaths.

Louis Pasteur's germ theory of disease led governments to improve sanitation in cities.

The invention of aspirin allowed doctors to effectively treat pain and fever.

Bloodletting allowed doctors to equalize the humors of the body.

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Answered by GPT-5 mini AI
Bloodletting allowed doctors to equalize the humors of the body. It was an outdated practice, not a beneficial medical innovation during the Industrial Revolution.