Page 845 - The Veterinary Care of the Horse
P. 845
• In severe cases it can spread to the upper limbs and trunk.
• If left untreated, the lesions coalesce and become large open sores with matted hair which
VetBooks.ir may become secondarily infected with bacteria including Staphylococcus spp. and
Dermatophilus congolensis.
• Long-standing infestations can lead to thickened skin with a rather greasy appearance.
Diagnosis
Diagnosis is made on the clinical signs and can be confirmed by the presence of mites in
brushings of scurf from the skin, collection on transparent adhesive tape or skin scrapes taken
by the vet. They are easily visible when examined under a microscope (Figure 18.14).
