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Ear mites are mites that live in the ears of animals. The most commonly seen species in veterinary medicine is Otodectes cynotis (Gk. oto =ear, dectes =biter, cynotis =of the dog). This species, despite its name, is also responsible for 90% of ear mite infections in felines.
There is a single species of mite in this genus, Otodectes cynotis. [1] This mite is within the class Arachnida and subclass Acari for mites and ticks. Otodectes are external parasites (ectoparasites) of dogs, cats and ferrets, [2] but can be found on many other mammals. [3] Otodectes is found worldwide. [4]
Infections can be caused by both bacterial and fungal origin, as well as small organisms such as ear mites. Malassezia pachydermatis is a common fungal agent for ear infections in dogs. Staphylococcus intermedius is the most common bacterial infection. A more serious ear infection, with pus in the ear, may be caused by Pseudomonas aeruginosa.
The Demodex mite lives at low levels in most dogs, not usually causing a problem. However, in young or immunocompromised animals those mites can multiply causing hair loss.
Mites. Ear mites are microscopic members of the species Otodectes cynotis. Symptoms include itching, inflammation, and black debris in the ear. [34] Cheyletiellosis is a mild pruritic skin disease caused by Cheyletiella yasguri. Humans can be transiently infected. [34]
The individual mites remain external to the epidermis within the follicle, but appear to be within the skin because they are below the general outer surface of the host. The mite Demodex canis is a common cause of demodicosis in dogs. Demodex mites are microscopic, cigar-shaped and have very short legs. These mites seem to feed on epidermal cells.