Changes

==Introduction==

==Introduction==

''Psoroptes ovis'' are astigmatic, non-burrowing mites around 750μm (0.75mm) in length, and oval shaped. They are extremely pruritic, and cause a contagious skin disease, as well as a loss in body condition.  They also cause the host to rub and bite the infected areas, resulting in further trauma.

''Psoroptes ovis'' are astigmatic, non-burrowing mites of the class ''Arachnida''.  They are around 750μm (0.75mm) in length, and oval shaped. They are extremely pruritic, and cause a contagious skin disease, as well as a loss in body condition.  They also cause the host to rub and bite the infected areas, resulting in further trauma.

==Hosts==

==Hosts==