Merck Manual

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Ixodes scapularis
Ixodes scapularis
Ixodes scapularis

This photo shows an adult deer tick (Ixodes scapularis), which transmits the bacteria that cause anaplasmosis, as well as the bacteria that cause Lyme disease and the protozoa that cause babesiosis.

Image courtesy of James Gathany via the Public Health Image Library of the Centers for Disease Control and Prevention.