Final answer:
Jane D. Kellogg describes the danger of disease in Western travel.
Step-by-step explanation:
Jane D. Kellogg describes the danger of disease in Western travel. In her quote, she mentions an epidemic of cholera caused by drinking water from the holes dug by campers. She also mentions seeing people burying their dead at a graveyard along the way. This indicates the serious threat of disease that travelers faced while traveling in the Western frontier.
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