engorged and unfed hard ticks on white background.

acari alloscutum animal arachnid argasid argasidae bacteria basis bean blood borne borrelia borreliosis capitulum castor cat chelicera clinical conscutum diagnosis diagnostic disease dog ectoparasite engorged feeding festoons gnathosoma hard healthy hematophages hematophagy host hypostome illness infected infection infectious ixodes ixodid ixodidae ixodoidea large lyme mammillated medicine mouthparts order ovoid palpal parasite parasitic parasitiformes pathogen pet prevent prevention pulvillus ricinus scutum shield small soft subclass tick ticks transmit transmitting veterinarian veterinary