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Fungal Diseases 4-H Veterinary Science Extension Veterinary Medicine Texas AgriLife Extension Service College of Veterinary Medicine and Biomedical Sciences Texas A&M System http://aevm.tamu.edu Objectives Describe dermatophytosis Describe dermatophilosis Describe mycoses List the systemic mycotic diseases Remember Five infectious diseases Bacterial Viral Fungal Parasitic Rickettsial 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 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 Skin Dermatophytosis Aka ringworm Infects skin of Dogs Cats Horses Cattle pigs Humans Sheep Goats 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 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 Dermatophilosis Aka Rain Gall Cutaneous (skin) Infects Horses Cattle Sheep Goats Transmission Vectors Biting flies Exudative dermatitis Symptoms Scabs Raised, crusty lumps covered with hair “Paintbrush lesion” Develop Lower legs Chest Back Hips Diagnosis Cultures Biopsies Skin scrapings General Systemic mycoses Infect body systems Cutaneous Respiratory Digestive Diagnosis Radiographs Culture Serology Skin immunologic tests Diseases Aspergillosis Candidosis Coccidioidomycosis Histoplasmisis Blastomycosis Sporotrichosis