Final answer:
Cholera was more prevalent in Victorian London than it is today. Poor sanitation and contaminated water sources contributed to the spread of the disease.
Step-by-step explanation:
In Victorian London, cholera was more prevalent than it is today. Cholera is a diarrheal disease caused by the bacterium Vibrio cholerae. During this time period, poor sanitation and contaminated water sources contributed to the spread of cholera in densely populated urban areas.
For example, in 1854, a cholera epidemic broke out in London. Dr. John Snow's investigation traced the source of the outbreak to a contaminated water pump on Broad Street, and by removing the pump handle, the spread of cholera was significantly reduced.
Today, with advances in sanitation and access to clean water, cholera is less prevalent in developed countries.