A group of students are reviewing the history of how medical care has changed and evolved over the years. Some of these changes are related to various social changes and policies that have emphasized improving the situation or environment to improve the health of the community. Which result best relates to a social change leading to a health improvement during the first half of the 20th century?

Question

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Social policy changes in the first half of the 20th century (1900-1950) would include measures such as elimination of child labor, development of vaccines, clean water and sewage treatment, refrigeration and preservation of food, worker safety policies, development and use of antibiotics, and improved nutrition. The other choices occurred in the second half of the 20th century.

A Group of Students Are Reviewing the History of How