Shortly after returning from a trip to several continents, a young man experiences episodes of fever, chills, muscle aches, and headache that recur at irregular intervals. The young man reports carrying only a large backpack and commonly staying in hostels along the way while traveling. Which of the following diseases is he likely to have?
A. anaplasmosis
B. scrub typhus
C. louse-borne relapsing fever
D. Lyme disease
E. yaws
Answer: C
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