Causes
Direct transmission between animals or through contact with foxes (a common reservoir). The mite survives only briefly off the host, but transmission is easy.
Diagnosis
Skin scraping examined under the microscope (can give a false negative · the mite is hard to find). Sometimes it is diagnosed by the response to treatment.
Treatment
Specific antiparasitics (selamectin, moxidectin, isoxazolines) that kill the mite. Environmental treatment and treatment of all animals in contact. Visible improvement within 2-4 weeks.
Prevention
Regular external antiparasitic, avoid contact with wild animals. If there is a case in the home, treat all animals living there.

