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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.
Tick-borne diseases, which afflict humans and other animals, are caused by infectious agents transmitted by tick bites. [1] They are caused by infection with a variety of pathogens , including rickettsia and other types of bacteria , viruses , and protozoa . [ 2 ]
Lyme disease, also known as Lyme borreliosis, is a tick-borne disease caused by species of Borrelia bacteria, transmitted by blood-feeding ticks in the genus Ixodes. [4] [9] [10] The most common sign of infection is an expanding red rash, known as erythema migrans (EM), which appears at the site of the tick bite about a week afterwards. [1]
Known for infesting dogs and other domestic animals, the American dog tick can also bite and cause harm to humans. This tick species carries Rocky Mountain spotted fever (RMSF), a potentially ...
After a tick bite, some people do develop a small, red, itchy bump, ... When ants bite humans, it grabs the skin and also sprays a compound called formic acid, Frye explains. Ant bites tend to be ...
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.
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. Rocky Mountain wood ticks (D. andersoni) are found in the Rocky Mountain states and ...
Tis the season of the ticks — and a time for residents to cover up and take precautions. A bite from a tiny tick can cause Lyme and other diseases, such as Ehrlichiosis, Babesiosis, Anaplasmosis ...