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Think Foot-and-Mouth Disease when you see… Texas A&M University Texas A&M University College of Veterinary Medicine College of Veterinary Medicine Jeffrey Musser DVM, PhD, DABVP Jeffrey Musser DVM, PhD, DABVP Suzanne Burnham, DVM Suzanne Burnham, DVM
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Foot-and-Mouth Disease Blisters and Excess Salivation
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Foot-and-Mouth Disease Click image to start movie
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Foot-and-Mouth Disease Think Foot-and-Mouth Disease when you see…
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Foot-and-Mouth Disease Think foot-and-mouth disease when you see cattle with excessive salivation
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Foot-and-Mouth Disease Image courtesy of Dr Tom McKenna
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Foot-and-Mouth Disease
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Foot-and-mouth Disease P T Hooper
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Foot-and-Mouth Disease Foot-and-mouth Disease FAO
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Foot-and-Mouth Disease
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Lesions in cattle
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Foot-and-Mouth Disease
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Blisters on the tongue Day One
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Foot-and-Mouth Disease Blisters on the tongue Blister on bovine tongue http://www.fao.org/Regional/LAmerica/prior/segalim/animal/aftosa/default.htm
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Foot-and-Mouth Disease Blisters become erosions Day Four Salivation increases as vesicles form and rupture. Symptoms increase in intensity.
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Foot-and-Mouth Disease Blisters become erosions Day Four Salivation increases as vesicles form and rupture. Symptoms increase in intensity. Day Six
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Foot-and-Mouth Disease Days 8-14 Animals may recover in 2 weeks. Only 1-5% die from FMD
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Foot-and-Mouth Disease
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Think Foot-and-Mouth Disease when you see lame cattle – look for blisters between the toes
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Foot-and-Mouth Disease Lameness Coronary band lesion first appears blanched Blisters and erosions form between the digits Stamping and shaking of feet Trembling
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Foot-and-Mouth Disease
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Clinical Signs in Cattle Feet Inter-digital space Coronary band Teats Blisters form on: Mouth Tongue Dental pad Gums Soft palate Muzzle Nostrils
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Foot-and-Mouth Disease Clinical Signs in Cattle Clinical Signs in Cattle Rarely fatal except in young animals Young calves may die without showing any clinical signs
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Foot-and-Mouth Disease In young animals there is focal necrosis of cardiac muscle. “Tiger heart” of cardiac muscle. “Tiger heart” 50-80% young infected animals die USDAUSDA
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Foot-and-Mouth Disease Extra-epithelial replication limited to myocardium, immature animals only USDA
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Foot-and-Mouth Disease Recovery Phase Recovered animals are permanently unthrifty
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Foot-and-Mouth Disease Recovery
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Foot-and-Mouth Disease in Swine Foot-and-Mouth Disease in Swine
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Foot-and-Mouth Disease In Swine
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Foot-and-Mouth Disease
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Pigs –Reluctance to move, painful toes
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Foot-and-Mouth Disease
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Pigs –Reluctance to move
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Foot-and-Mouth Disease Lesions in Swine
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Foot-and-Mouth Disease Lesions in Swine
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Foot-and-Mouth Disease Lesions in Swine
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Foot-and-Mouth Disease
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Lesions in Swine
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Foot-and-Mouth Disease Lesions in Swine Lesions in Swine Blisters on teats and udders
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Foot-and-Mouth Disease Lesions in Swine Lesions in Swine Mastitis
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Foot-and-Mouth Disease
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Clinical Signs in Sheep and Goats not When sheep or goats become infected with FMD, the disease may not be diagnosed for a considerable time because the clinical signs may be very mild.
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Foot-and-Mouth Disease
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Lame sheep
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Foot-and-Mouth Disease Signs in Sheep and Goats
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Foot-and-Mouth Disease Signs in Sheep and Goats
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Foot-and-Mouth Disease Foot-and-mouth Disease in sheep Lameness
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Foot-and-Mouth Disease Foot-and-mouth Disease in Sheep
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Foot-and-Mouth Disease Lesions in Sheep
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Foot-and-Mouth Disease Lesions in sheep
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Foot-and-Mouth Disease Lesions in sheep
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Foot-and-Mouth Disease Lesions in giraffe
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Foot-and-Mouth Disease Lesions in elephants
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Foot-and-Mouth Disease Bibliography Committee on Foreign Animal Diseases of the United States Animal Heath Association, “Foreign Animal Diseases” 1992, Ch. Vesicular Diseases, p. 368-382. W. A. Geering, et.al, Exotic Diseases of Animals: a field guide for Australian veterinarians, 1995, Ch Foot-and-mouth disease, p.112- 131 Ninth Edition of Merck Veterinary Manual M. Van Vuuren, Foot-and-mouth Disease, an Overview, University of Pretoria 2005, Presentation given at Knoxville, Tenn. FEAD course. Thomson, G. R. and Bastos, A. D. S. “Foot-and-mouth disease” Ch 125 of Infectious Diseases of Livestock, Volume 2. Ed. J. A. W. Coetzer and R. C. Tustin. Oxford University Press, second edition, 2004, 1324-1365.
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Foot-and-Mouth Disease Bibliography Tomasula, P.M. and R.P. Konstance. “The Survival of Foot-and-Mouth Disease Virus in Raw and Pasteurized Milk and Milk Products”. Journal of Dairy Science, 2004; 87:1115-1121. Callis, J.J. et al. “Foot-and-mouth Disease – A Review”. JAVMA, 1968; 153:12, 1798-1802. Musser, J.M.B. “A practitioner’s primer on foot-and-mouth disease”. JAVMA, 2004; 224:8, 1261-1268. Alexandersen, S., et al. “The Pathogenesis and Diagnosis of Foot-and- Mouth Disease”. J. Comp. Path. 2003; 129:1-36. O.I.E. USDA, APHIS, VS, The Grey Book. And associated websites. Personal interviews with Dr Logan, Dr McKenna, Dr Coetzer, Dr VanVuuren and Dr Waldrup
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Foot-and-Mouth Disease Foot-and-mouth Disease Acknowledgements Special thanks to Linda Logan, DVM PhD Ken Waldrup, DVM PhD Robin Sewell, DVM Kelsey Pohler- Research Assistant Tom McKenna, DVM PhD Corrie Brown, DVM PhD
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