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Deer tick 3D rendering of a male and female deer tick. Ixodes scapularis is the main vector of Lyme disease in North America. [14] The CDC reported over 30,000 new cases of the disease in 2016 alone, the majority of which were contracted in the summer months, which is when ticks are most likely to bite humans. [15]
Most ticks go through four stages: egg, six-legged larva, eight-legged nymph, and adult. After hatching from the egg, a tick must obtain a blood meal at every stage to survive. Ticks can feed on mammals, birds, reptiles, and amphibians. Unlike most tick species, D. variabilis prefers the same host during all of its life stages. [6]
Female (left) and male (right) Dermacentor andersoni Dermacentor andersoni hard ticks are generally brown or reddish brown in color. Females have a distinct dorsal silver-gray ornamentation that turns more gray when the tick feeds, while males are spotted gray and white with no distinctive shield marking. [1]
Ticks have been documented transmitting a wide range of protozoan, bacterial, viral, and fungal pathogens to humans, pets, and livestock. With tick season right around the corner in most areas, we ...
Tick bites are a concern usually associated with summer and hot weather, but experts warn that warmer winters could mean an uptick in ticks and Lyme disease.
Loafman notes that deer ticks are tiny, “so the skin inspection must be thorough and close,” he says. The insects like to burrow snugly against the skin, he adds, which makes the groin ...
In some species an adult female may lay eggs after each feeding. Their life cycles range from months to years. The adult female argasid tick can lay a few hundred to over a thousand eggs over the course of her lifetime. Both male and female adults feed on blood, and they mate off the host.
When the tick bites a vertebrate, B. microti can be transmitted as sporozoites into the vertebrate host. [1] The parasite starts infecting red blood cells, where it digests hemoglobin for amino acids. After this, B. microti undergoes asexual reproduction and differentiation to male and female gametocytes.