John Snow Has Been Credited with Founding Epidemiology Because, Through

question 5

Multiple Choice

John Snow has been credited with founding epidemiology because, through careful investigations, he identified that _____.

• A) rat fleas caused the bubonic plague
• B) cigarette smoking was a primary cause of lung cancer
• C) cases of puerperal fever were being caused by contamination from an autopsy laboratory
• D) contaminated water caused a cholera outbreak