Final answer:
Urbanization and poor sanitation in growing cities led to major health concerns like cholera outbreaks.
Explanation:
Urbanization brought new challenges as cities developed, leading to major health concerns. Overcrowded cities and poor sanitation caused the spread of diseases, such as cholera outbreaks.
The concentration of sedentary peoples in urban areas facilitated the thriving of infectious diseases, jumping from person to person. Better sanitation practices in the 19th century helped improve health conditions.
Poor sanitation and communicable diseases were significant causes of death among urban working-class populations during the industrial era.
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