4 h fungal diseases
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Fungal Diseases
4-H Veterinary ScienceExtension Veterinary Medicine
Texas AgriLife Extension ServiceCollege of Veterinary Medicine and Biomedical Sciences
Texas A&M Systemhttp://aevm.tamu.edu
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Objectives
Describe dermatophytosis Describe dermatophilosis Describe mycoses List the systemic mycotic diseases
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Remember Five infectious diseases
Bacterial Viral Fungal Parasitic Rickettsial
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Infectious disease An illness due to a specific infectious agent or its
toxic products that arises through transmission of that agent or its products from an infected person, animal or reservoir to a susceptible host, either directly or indirectly
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Overview
Fungi Microorganisms that can infect various tissues of
animals Called
Mycoses Mycotic infections Fungal infections
Single organism – fungus Multiple organisms – fungi Affect
Superficial skin Various body systems
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Skin
Dermatophytosis Aka ringworm Infects skin of
Dogs Cats Horses Cattle pigs Humans Sheep Goats
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Transmission Direct contact
Fomites: (any inanimate object or substance capable of carrying infectious organisms)
Soil Bedding Carpet Furniture Tack Blankets Brushes Clippers
Infected animals Humans
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Young are most susceptible Symptoms
Characteristic lesions Hair loss Scaly around loss Circumscribed edges Raised and reddened Pruritus
Diagnosis Skin scrapings Culture
Treatment Spontaneous recovery Prevent spread
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Dermatophilosis Aka Rain Gall Cutaneous (skin) Infects
Horses Cattle Sheep Goats
Transmission Vectors
Biting flies
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Exudative dermatitis Symptoms
Scabs Raised, crusty lumps covered with hair
“Paintbrush lesion” Develop
Lower legs Chest Back Hips
Diagnosis Cultures Biopsies Skin scrapings
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General
Systemic mycoses Infect body systems
Cutaneous Respiratory Digestive
Diagnosis Radiographs Culture Serology Skin immunologic tests
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Diseases Aspergillosis Candidosis Coccidioidomycosis Histoplasmisis Blastomycosis Sporotrichosis