Question

A 52-year-old man presents with erythema migrans rash after a hiking trip in a high-risk Lyme area in Ontario. He is otherwise well. According to Canadian Lyme disease treatment guidance, what is the recommended first-line therapy?

Accepted Answer

Doxycycline 100 mg orally twice daily for 14-21 days

Answer

No treatment; observe only

Answer

Single-dose doxycycline 200 mg only

Answer

IV ceftriaxone for 4 weeks in all cases

Answer

Topical antibiotics only

Practice question

A 52-year-old man presents with erythema migrans rash after a hiking trip in a high-risk Lyme area in Ontario. He is otherwise well. According to Canadian Lyme disease treatment guidance, what is the recommended first-line therapy?