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Lyme and Other Tickborne Diseases

May 22, 2015

CDC Lyme Disease Widget. Flash Player 9 or above is required.
CDC Lyme Disease Widget.
Flash Player 9 or above is required.

Lyme and other tickborne diseases are spread to humans and animals by the bite of an infected tick. In New Hampshire, and across the United States, Lyme disease is the most commonly reported tickborne disease. Anaplasmosis, babesiosis and Powassan virus are other tickborne diseases that have been documented in New Hampshire, while ehrlichiosis, tularemia and Rocky Mountain Spotted Fever are tickborne diseases that may be encountered in travel to other parts of the country, including other New England states.

Lyme disease, anaplasmosis, babesiosis and Powassan virus are transmitted by the bite of the black-legged tick (lxodes scapularis), formerly known as the deer tick. Black-legged ticks have four life stages: eggs, larvae, nymphs and adults. The black-legged tick nymphs are most active in the late spring through summer months (usually May through August) and are the most likely to infect humans with tickborne diseases.

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