A 22-year-old presents 24 hours after an Ixodes scapularis tick bite in Connecticut. The tick was engorged and attached for approximately 48 hours; he...

Question

A 22-year-old presents 24 hours after an Ixodes scapularis tick bite in Connecticut. The tick was engorged and attached for approximately 48 hours; he has no symptoms. What is the recommended prophylaxis?

Accepted Answer

Single dose doxycycline 200 mg within 72 hours of tick removal

Answer

No prophylaxis; observe only

Answer

Doxycycline 100 mg twice daily for 14 days

Answer

Amoxicillin 500 mg three times daily for 10 days

Answer

Ceftriaxone 2 g IV once

us-abfm MCQ (SBA): Lyme Disease Prophylaxis

A 22-year-old presents 24 hours after an Ixodes scapularis tick bite in Connecticut. The tick was engorged and attached for approximately 48 hours; he has no symptoms. What is the recommended prophylaxis?