STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Male (right) and female (left) Lyme disease ticks mouth parts (Ixodes ricinus), scanning electron micrograph (SEM). This tick is the principal vector of Lyme disease in Europe. In the center of the mouthparts are their barbed blood-sucking mouthparts the hypostome. Sensory pedipalps are on both sides of the mouth. Male ticks attach, but do not feed or become engorged and so do not transmit Lyme disease.The tick is common in Europe and attacks humans, domestic and wild animals. Ixodes ricinus carries the spirochaete bacterium Borrelia burgdorferi, cause of both Lyme disease and a closely-related disease known as erythema migrans. Both diseases cause skin lesions, neurological and cardiac abnormalities and recurrent arthritis. Magnification: x40 when printed at 10cm wide.
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