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Can anyone please help me understand #2 of this assignment? Here is the assignment with the questions below. This is due by midnight on 3/15/2018 (in about 4 hours). Any help is appreciated!

“Watch the video clip: Mike Jay on John Snow and the Soho Cholera Outbreak of 1854 – The Broad Street Pump Handle and the Birth of Epidemiology at http://wellcomecollection.org/mike-jay-john-snow-and-soho-cholera-outbreak-1854 (Links to an external site.)Links to an external site.. Based on the findings from the video, please answer the following prompts.”

1. Identify strategies utilized in the outbreak investigation.

2. How is a causal relationship proven? What data must be collected to support causal relationships?

3. Based on your interpretation of causal relationship, did John Snow prove that contaminated drinking water causes cholera? Provide the rationale for your response.

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