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(a) Ticks were scored for engorgement on a scale from 0 to 5. This image is an example of the scoring scale for Rh. sanguineus s. l. adult females. Each life stage was scaled appropriately, except males were grossly indistinguishable and were therefore not scored for engorgement. (b) Removing ticks from participating dog ears upon inspection. This individual Chihuahua had 526 Rh. sanguineus s. l. attached.
