Final answer:
The source supports the interpretation that Ohio must upgrade its public health system to contribute to post-WWI global reconstruction and the defense of democracy.
Step-by-step explanation:
The historical passage provided reflects the sentiments and priorities of Ohio, as a representation of American states, in the aftermath of World War I. It highlights the necessity for states to contribute to national efforts of reconstruction and defense of democratic ideals. The passage underscores that Ohio needs to update its public health infrastructure to ensure the well-being of its citizens, asserting that this is a patriotic duty akin to supporting wartime funding efforts. In this context, the historical interpretation that the source most supports is that Ohio, and by extension the United States, saw the remodeling of public health systems as integral to playing a part in international reconstruction and the maintenance of democratic ideals post-World War I.