The small scabies mites burrow through the stratum corneum to produce the linear lesions, and the mites along with their eggs and feces produce intense pruritus. Scabies is easily transmitted by contact and typically occurs in community outbreaks. Ixodes scapularis is the tick that is the vector for Borrelia burgdorferi organisms, which cause Lyme disease and erythema chronicum migrans. Molluscum contagiosum is caused by a poxvirus that produces a localized, firm nodule. The erythematous macules and pustules of impetigo in children are often caused by staphylococcal and group A streptococcal infection. Tinea corporis is a superficial dermatophytic fungal infection that can produce erythema and crusting.