Assessment of Duration of Tick Feeding by the Scutal Index Reduces Need for Antibiotic Prophylaxis After Ixodes scapularis Tick Bites

Falco Richard C; Daniels Thomas J; Vinci Vanessa; McKenna Donna; Scavarda Carol; Wormser Gary P<sup>*</sup>

doi:10.1093/cid/ciy221

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Assessment of Duration of Tick Feeding by the Scutal Index Reduces Need for Antibiotic Prophylaxis After Ixodes scapularis Tick Bites

作者：Falco Richard C; Daniels Thomas J; Vinci Vanessa; McKenna Donna; Scavarda Carol; Wormser Gary P^*

来源：Clinical Infectious Diseases, 2018, 67(4): 614-616.

DOI：10.1093/cid/ciy221

摘要

Doxycycline is recommended for persons with Ixodes scapularis tick bites in certain geographic areas, if the tick had fed for at least 36 hours. Based on the scutal index, over 40% of I. scapularis tick bites from patients seen at the Lyme Disease Diagnostic Center did not warrant antibiotic prophylaxis.