For 14 weeks in the late summer of 1853, London suffered one of its worst cholera outbreaks. The leading voices in medicine believed the disease emanated from the foul gasses of London’s polluted ...

John Snow is often called the founder of epidemiology, the study of health in populations. He is best known for his work on tracking the spread of cholera during an epidemic in London in 1854.

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In 1848, there was a second outbreak of cholera in London. Dr John Snow, a physician and specialist in medical hygiene, doubted that bad air caused the disease. Dr Snow carried out his own ...

Two major developments in the mid-1800s showed why impure water is dangerous. First, physician John Snow traced a deadly cholera outbreak to contaminated water from London's Broad Street pump. Second, ...

It was made in 1854 by a London physician named John Snow. He suspected that the cholera outbreak in London’s Soho neighborhood, which killed 616 people, was spread through water, not air. At that ...

who was the first to find evidence that cholera spreads through tainted water. John Snow started mapping incidences of the disease in Soho, and noticed clusters around the Broad Street water pump.