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Ticks are external parasites, living by feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. The timing of the origin of ticks is uncertain, though the oldest known tick fossils are from the Cretaceous period, around 100 million years old. Ticks are widely distributed around the world, especially in warm, humid climates.
Ticks are insects known for attaching to and sucking blood from land-dwelling animals (specifically vertebrates). [1] Ticks fall under the category of 'arthropod', and while they are often thought of in the context of disease transmission, they are also known to cause direct harm to hosts through bites, toxin release, and infestation.
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 ]
The brown dog tick, or kennel tick, is found through most of the country, but rarely bites humans. It is mostly found in dog kennels or in homes with dogs. It is not a major carrier of human disease.
The skyrocketing cases of tick-borne diseases recently reported by the CDC provides indirect evidence that ticks are becoming more numerous. 7 new tick viruses to worry about with 'big epidemic ...
Removing ticks: Using fine-tipped tweezers, grasp the tick near the mouthparts as close to the skin as possible. Do not twist, turn, or squeeze the tick's body. Instead, pull the tick in a steady ...
Tick paralysis is a type of paralysis caused by specific types of attached ticks. Unlike tick-borne diseases caused by infectious organisms, the illness is caused by a neurotoxin produced in the tick's salivary gland. After prolonged attachment, the engorged tick transmits the toxin to its host. The incidence of tick paralysis is unknown.
"Ixodicides" are substances that kill ticks. [1] "Miticides" are substances that kill mites. The term scabicide is more narrow, and refers to agents specifically targeting Sarcoptes. The term "arachnicide" is more general, and refers to agents that target arachnids. This term is used much more rarely, but occasionally appears in informal writing.