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Concept explainers
The tropical skin disease called yaws is transmitted by direct contact. Its causative agent, Treponema pallidum pertenue, is indistinguishable from T. pallidum. Syphilis epidemics in Europe coincided with the return of Columbus from the New World. How might T. pallidum pertenue have evolved into T. pallidum in the temperate climate of Europe?
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Chapter 26 Solutions
Microbiology: An Introduction Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition) (What's New in Microbiology)
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