Question

A 36-year-old hiker had an Ixodes tick attached for approximately 48 hours in an endemic area; the tick was removed 24 hours ago. He is asymptomatic. What is the best prophylaxis?

Accepted Answer

Single dose doxycycline 200 mg PO within 72 hours

Answer

Amoxicillin 500 mg PO TID for 10 days

Answer

Doxycycline 100 mg PO BID for 10 days

Answer

No prophylaxis; obtain Lyme serology now

Answer

Topical permethrin to the bite site

Practice question

A 36-year-old hiker had an Ixodes tick attached for approximately 48 hours in an endemic area; the tick was removed 24 hours ago. He is asymptomatic. What is the best prophylaxis?