Diseases / List of Fungal / Algal Diseases / Disease description:

Malassezia Infection in Ferrets 

INFORMATION AVAILABLE

GENERAL INFORMATION

CLINICAL CHARACTERISTICS & PATHOLOGY

INVESTIGATION & DIAGNOSIS

TREATMENT & CONTROL

SUSCEPTIBILITY & TRANSMISSION

ENVIRONMENT & GEOGRAPHY

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General and References

Disease Summary

Yeast infection commonly associated with other ear infections in dogs. (B627.17.w17)
Ferrets Yeast infection of the ears in association with ear mites. (J3.137.w10)

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Alternative Names (Synonyms)

Malasseziosis

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Disease Type

Fungal Infection

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Infectious/Non-Infectious Agent associated with the Disease

Malassezia spp. yeasts. (B627.17.w17, J3.137.w10)

Note: Seen in association with ear mite infection. (J3.137.w10, J213.6.w3)

Infective "Taxa"

  • Malassezia spp. 

Non-infective agents

--

Physical agents

-- Indirect / Secondary

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References

Disease Author

Dr Debra Bourne MA VetMB PhD MRCVS (V.w5)
Click image for main Reference Section

Major References / Reviews

Code and Title List

Ferrets:
B627.17.w17
J3
.137.w10, J213.6.w3

Other References

Code and Title List

 

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Clinical Characteristics and Pathology

Detailed Clinical and Pathological Characteristics

General Otitis externa or otitis interna in association with mite or other infection. (B627.17.w17)

Clinical Characteristics

--
Ferrets
  • Crusting and necrosis of the ear pinnae, usually bilateral, apparently painful, progressing and spreading to the face in about half the affected individuals. (J3.137.w10)

Incubation

--
Ferrets
  • --

Mortality / Morbidity

  • --
Ferrets
  • Reported only from ferrets in one collection. (J3.137.w10)

Pathology

--
Ferrets Histopathology:
  • Pinna epidermis crusted with yeasts. Yeasts present in intra-corneal or sub-corneal pustules, together with neutrophils and eosinophils. Large areas of haemorrhagic necrosis, associated with thrombosis. (J3.137.w10)

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Human Health Considerations

--

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Susceptibility / Transmission

General information on Susceptibility / Transmission

--
Ferrets
  • Apparent transmission was noted between ferrets, with eight ferrets affected initially, followed by spread to a further six ferrets. (J3.137.w10)
  • Note: apparently secondary to ear mite (Otodectes sp.?) infection. (J3.137.w10)

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Disease has been reported in either the wild or in captivity in:

  • A number of ferrets (14 in the first outbreak, "several" in each of later outbreaks) from one owner. (J3.137.w10)

Further information on Host species has only been incorporated for species groups for which a full Wildpro "Health and Management" module has been completed (i.e. for which a comprehensive literature review has been undertaken). Host species with further information available are listed below:

Host Species List

(List does not contain all other species groups affected by this disease)

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Disease has been specifically reported in Free-ranging populations of:

  • --

Further information on Host species has only been incorporated for species groups for which a full Wildpro "Health and Management" module has been completed (i.e. for which a comprehensive literature review has been undertaken). Host species with further information available are listed below:

Host Species List

  • --

(List does not contain all other species groups affected by this disease)

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Environment/Geography

General Information on Environmental Factors/Events and Seasonality

  • --

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Regions / Countries where the Infectious Agent or Disease has been recorded

  • UK. (J3.137.w10)

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Regions / Countries where the Infectious Agent or Disease has been recorded in Free-ranging populations

  • --

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General Investigation / Diagnosis

General Information on Investigation / Diagnosis

Yeasts may be seen on impression smear: 3 - 8 um diameter, round or oval, often in clusters or adhering to keratinocytes. (B627.17.w17)
Ferrets
  • Presence of yeasts on the pinnae on histopathological examination. (J3.137.w10)
Related Techniques
WaterfowlINDEXDisInvTrCntr.gif (2325 bytes)

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Similar Diseases (Differential Diagnosis)

--
Ferrets
  • Other causes of otitis externa, including ear mites. (J3.137.w10)

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Treatment and Control

Specific Medical Treatment

--
Ferrets
  • Ketoconazole, 50 mg per ferret orally daily, plus topical ear drops (miconazole, polymixin B, prednisolone acetate). (J3.137.w10)
    • Affected and in-contact ferrets were treated. (J3.137.w10)
    • Improvement was obvious within five days. (J3.137.w10)
    • Note: In dogs, treatment continues for 7 - 10 days after clinical signs have resolved. (B627.17.w17)
Related Techniques

 

WaterfowlINDEXDisInvTrCntr.gif (2325 bytes)

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General Nursing and Surgical Techniques

--
Ferrets
  • Pinna amputation was required in a few cases due to the severity of lesions. (J3.137.w10)
Related Techniques
WaterfowlINDEXDisInvTrCntr.gif (2325 bytes)

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Preventative Measures

Vaccination --
Ferrets --
Prophylactic Treatment

--

Ferrets --
Related Techniques
WaterfowlINDEXDisInvTrCntr.gif (2325 bytes)

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Environmental and Population Control Measures

General Environment Changes, Cleaning and Disinfection --

Ferrets

  • --
Population Control Measures --
Ferrets --
Isolation, Quarantine and Screening --
Ferrets --
Related Techniques
WaterfowlINDEXDisInvTrCntr.gif (2325 bytes)

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