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Dermacentor variabilis, also known as the American dog tick or wood tick, is a species of tick that is known to carry bacteria responsible for several diseases in humans, including Rocky Mountain spotted fever and tularemia (Francisella tularensis). It is one of the best-known hard ticks. Diseases are spread when it sucks blood from the host.
There are many different species of ticks, but the detail that matters is whether you were bitten by a deer tick (a.k.a. a black-legged tick) or dog tick, which are known to transmit these two ...
Unlike ticks from other genera, [8] deer ticks do not have eyes. [3] [8] The scutum is dark, inornate (plain), and, in unfed females, contrasts with the exposed orange or red remainder of the idiosoma. [3] There are no festoons. [3] [9] Ixodes ticks have an anal groove that resembles a horseshoe [9] on their underside anterior to the anal pore.
For an individual to acquire infection, the feeding tick must also be infected. Not all ticks are infected. In most places in the US, 30-50% of deer ticks will be infected with Borrelia burgdorferi (the agent of Lyme disease). Other pathogens are much more rare. Ticks can be tested for infection using a highly specific and sensitive qPCR procedure.
Ticks can be tough to spot. So tough that you may not even know one bit you. But pictures of tick bites — and knowing a little about their behavior — can help you identify their marks.
Summer 2017 has already been declared an especially bad season for ticks due to the mild winter and growing deer and mice populations.. Amid mounting fears over the potentially deadly diseases the ...
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