Question Dr. John Snow found that cholera cases in London were (1 point) Responses spatially associated with certain public wells. spatially associated with certain public wells. being punished for their sins. being punished for their sins. being transmitted almost exclusively by French and Irish immigrants. being transmitted almost exclusively by French and Irish immigrants. transmitted through the air in contagious diffusion. transmitted through the air in contagious diffusion. spread through the main seatrading routes by infected rats.

Dr. John Snow found that cholera cases in London were spatially associated with certain public wells.

Dr. John Snow found that cholera cases in London were spatially associated with certain public wells.

The correct answer is: spatially associated with certain public wells.

Dr. John Snow made the groundbreaking discovery that cholera cases in London were spatially associated with certain public wells. However, it's important to note that the other options you provided were not the correct answers. Let's explore how Dr. John Snow arrived at his conclusion.

During the 19th century, cholera was a major public health concern, causing widespread outbreaks and resulting in high mortality rates. In 1854, one such outbreak occurred in the Soho district of London. Dr. John Snow, a physician, took a scientific and evidence-based approach to investigate the source of the outbreak.

Dr. John Snow mapped the locations of cholera cases in the area and noticed a clustering pattern around different public wells. He carefully analyzed these patterns and observed that people who obtained their water from specific contaminated wells were more likely to contract cholera compared to those who used other water sources.

To further confirm his hypothesis, Dr. John Snow conducted interviews with individuals affected by cholera. He found that many of them had a common factor: they all drank water from the same contaminated well, known as the Broad Street pump.

To put his theory to the test, Dr. John Snow requested the local authorities to remove the handle of the Broad Street pump, effectively cutting off access to the contaminated water. Soon after, the number of cholera cases significantly decreased.

This investigation by Dr. John Snow was a pivotal moment in the field of epidemiology. By demonstrating that cholera transmission was linked to a contaminated water source, he paved the way for improved understanding and prevention of infectious diseases.

In summary, Dr. John Snow found that cholera cases in London were spatially associated with certain public wells, particularly the Broad Street pump. His investigation and analysis of the patterns of cholera outbreaks revolutionized our understanding of the disease and led to important public health interventions.