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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.
Dogs that are severely affected can die from this disease. Although people can get ehrlichiosis, dogs do not transmit the bacteria to humans; rather, ticks pass on the ehrlichia organism. Clinical signs of human ehrlichiosis include fever, headache, eye pain, and gastrointestinal upset.
Dogs and medium-sized mammals are the preferred hosts of an adult American dog tick, although it feeds readily on other large mammals, including human beings. This tick is the most commonly identified species responsible for transmitting R. rickettsii to humans.
Most ticks are specific for some animal, so there are dog ticks, pig ticks, cattle ticks — these ticks really don’t like humans much. But the lone star tick really does like humans,” Platts ...
A typical Rhipicephalus species is Rhipicephalus sanguineus, the tropical dog tick, specialized to feed only on dogs. It is distributed globally throughout the warm countries, wherever humans with their dogs live. Typical Rhipicephalus species that feed on cattle in Africa are R. appendiculatus, the brown ear-tick, and R. evertsi, the red ...
The other is the fact that the first sign may be a life-threatening allergic reaction known as anaphylaxis (think: throat-swelling, difficulty breathing) in people who develop the condition, often ...
The occurrence of ticks and tick-borne illnesses in humans is increasing. [7] Tick populations are spreading into new areas, in part due to climate change . [ 8 ] [ 9 ] Tick populations are also affected by changes in the populations of their hosts (e.g. deer, cattle, mice, lizards) and those hosts' predators (e.g. foxes).
Worms and other internal parasites can be treated easily but are some of the most common problems seen in dogs. Some of the internal parasites that cause diarrhea and loose stools in puppies ...