Final answer:
The statement that early U.S. public health was linked to social reform movements is true. These reforms addressed education, employment, urban sanitation, and housing to improve overall public health and productivity.
Step-by-step explanation:
The early history of U.S. public health was indeed closely tied to social reform movements such as campaigns for safe housing and trade unions. This statement is true.
During the late 19th and early 20th centuries, there was a significant movement toward social reform to improve living and working conditions for the population, particularly the working class. These reforms included legislation for free education for children, fair employment practices based on qualifications, and actions to address urban sanitation and housing. For instance, Britain's Public Health Act of 1848 and America's various city ordinances tackled health hazards by setting standards for sanitation and pollution control. These efforts were part of a larger push for public health improvements that aimed to promote hygienic practices, curb disease spread, and ultimately, foster a more productive workforce by ensuring a healthier citizenry.