What did John Snow help develop in medicine?
Chemotherapy
Anaesthesia
X-rays
Penicillin
Answer
John Snow was a British physician and epidemiologist who played a key role in the development of anaesthesia and the discovery of the cause of cholera. In 1853, Snow conducted a study of the Broad Street cholera outbreak in London and concluded that the disease was spread through contaminated water. His findings led to the development of the modern sewage system and the adoption of clean water practices.
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