Lone Star Ticks

This tick, Amblyomma americanum (36,38), is identified by a white dot at the top of the back in females and white curved back markings in males, which allows relatively easy separation from deer ticks. Although native Texans, lone star ticks now range to the Atlantic coast and as far north as New York. They do not transmit Lyme disease but can produce a mild disorder that mimics it as well as a mild form of borreliosis. They can transmit tularemia and Rocky Mountain spotted fever. As these diseases are rare, prophylaxis is not indicated. Throughout their lives, the ticks feed on deer and other large herbivores; they can attack humans at any stage. They firmly attach to the skin, like deer ticks, and so must be treated in the same way. Walking near a deposited egg mass can result in an acute massive infestation, in which the chest and pelvis can appear to vibrate; pyrethroid shampoo, head to foot, and laundering of sheets and clothes are curative.

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