Image of the Week: A raised erythematous lesion on a pregnant woman’s chest

A 28-year-old woman presents with a one-week history of a slightly raised erythematous lesion on her chest. She has been experiencing fatigue and joint pain since taking a walk through the woods in eastern Massachusetts earlier this month. She is 33-weeks pregnant and is otherwise well. An enzyme-linked immunosorbent assay (ELISA) test comes back negative for Lyme antibodies. What treatment should be administered? Learn more about this case, take the quiz, and join the conversation on Figure 1

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