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Development of Human Granulocytic Anaplasmosis Infection Despite Prophylaxis With a One-Time Dose of Oral Doxycycline After Recent Tick Exposure

Kim, Brian B. MD*; Carey, Jeanne M. MD†; Yancovitz, Stanley R. MD†; Fischer, Harry D. MD‡

Infectious Diseases in Clinical Practice: May 2009 - Volume 17 - Issue 3 - pp 184-186
doi: 10.1097/IPC.0b013e31817e5c03
Case Reports

In this brief report, we present a case of human granulocytic anaplasmosis (HGA) infection despite a 1-time 200-mg oral dose of doxycycline. Prophylaxis with a 1-time dose of doxycycline after recent tick exposure has been shown to be effective in reducing the rate of Lyme disease. However, there is no current evidence that evaluates the efficacy of this single dose as a method of prophylaxis against HGA. This case report suggests that it may be ineffective in preventing HGA after recent tick exposure.

From the *Department of Medicine; Divisions of †Infectious Diseases, and ‡Rheumatology, Department of Medicine, Beth Israel Medical Center, NewYork, NY.

Reprints: Harry D. Fischer, MD, Division of Rheumatology, Beth Israel Medical Center, 10 Union Square East Suite 3D, New York, NY 10003. E-mail: HFischer@chpnet.org.

© 2009 by Lippincott Williams & Wilkins.