Dermacentor variabilis
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| Dermacentor variabilis |
Dermacentor variabilis, also known as the American dog tick, is a species of tick that is known to carry bacteria responsible for several diseases in humans, including Rocky Mountain spotted fever. It is one of the most well-known of hard ticks. D. variabilis does not cause Lyme disease, that is carried by the deer tick Ixodes dammini.
