Final answer:
Germ identification, handwashing and sterilization, and industrialization and urbanization were crucial practices in preventing infections in the late 1800s.
Step-by-step explanation:
In the late 1800s, practices like germ identification, handwashing and sterilization, and industrialization and urbanization became crucial in preventing infections.
Germ identification allowed scientists to understand the causes of diseases and develop appropriate prevention measures.
Handwashing and sterilization helped reduce the transmission of pathogens, especially in healthcare settings.
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