How do people get anaplasmosis?
Anaplasmosis is transmitted to humans by tick bites primarily from the blacklegged tick (Ixodes scapularis) in the eastern United States and the western blacklegged tick (Ixodes pacificus) in the western United States. Of the four distinct phases in the tick life-cycle (egg, larvae, nymph, adult), nymphal and adult ticks are most frequently associated with transmission of anaplasmosis to humans. The disease also occurs in temperate regions outside of the United States. In these areas, Ixodes ricinus and Ixodes persulcatus serve as primary vectors.
