Deer and dog tick



	Ticks are small, insect-like creatures that live in woods and fields. They can attach to people or animals as they brush past bushes, plants, and grass. Ticks can be fairly large, as big as a pencil eraser, or so small that they are almost impossible to see. While most ticks do not carry diseases, some ticks can cause Lyme disease, Rocky Mountain spotted fever, Colorado tick fever, and tularemia.

Review Date: 12/15/2011
Reviewed By: Jacob L. Heller, MD, MHA, Emergency Medicine, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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