Tick, deer - adult female

This is an adult female deer tick, Ixodes dammini. It transmits Lyme disease and babesiosis to humans. (Image courtesy of the Centers for Disease Control and Prevention.)

Review Date: 03/11/2011
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; and Jatin M. Vyas, MD, PhD, Instructor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.