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FAD Simon J. Kenyon Ross University
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FAD Myths FADs are a problem for large animal veterinarians FADs look like the pictures USDA/APHIS/VS doesn’t like false alarms It can’t happen to me
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Jan Jun 2010 Jul Dec 2009
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WHO 2003-9: "An influenza pandemic occurs when a new influenza virus appears against which the human population has no immunity, resulting in epidemics worldwide with enormous numbers of deaths and illness“ WHO 2010: "An influenza pandemic may occur when a new influenza virus appears against which the human population has no immunity" CDC 1997: "The hallmark of pandemic influenza is excess mortality" CDC: "There are some pandemics that look very much like a bad flu season"
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MassLive.com
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Some recent cases Screwworm, Sept 2007, Mississippi Avian Influenza HPAI, 2004 - H5N2 Texas, H7N3 British Columbia Exotic Newcastle Disease 2003 – California, Texas BSE, 2003 - 2007 – imported and US bred cattle Monkey Pox, multi-state, June 2003 Bluetongue – Montana, Wyoming 2007
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Monkey Pox Imported Gambian Giant Rat Prairie Dogs Humans
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Screwworm Image from “The Gray Book”, University of Georgia
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Screwworm Screwworm - Third instar larvae, Cochliomyia hominivorax
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Recent Outbreaks Exotic Newcastle Disease – California, Texas etc Sept. 2003
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Opportunities for Veterinarians Initial Accreditation Training Course USDA/APHIS/VS and State Animal Health Depts. Animal Surveillance Emergency Response Teams (ASERT) Purdue’s Graduate Certificate Program in Veterinary Homeland Security
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www.EDEN.lsu.edu
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FMD - Cattle
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Vesicles or blisters on tongue, dental pad, or teats
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FMD
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Hogs and other species – vesicles on coronary band
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Hog - Vesicle on snout
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Clinical Comparisons: Snouts Swine Vesicular Disease Vesicular Stomatitis Foot and Mouth Disease Vesicular Exanthema
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FMD
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Swine Vesicular Disease
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Sheep – disease may be very mild
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Diff. Diagnosis of Vesicular Dis. CattleSheepSwineHorse FMDSSSR Vesicular stomatitisSSSS Vesicular Exanthema of Swine RRSR Swine Vesicular Disease RRSR
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Airborne Spread? “O Lausanne 1965 ”
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National Animal Health Laboratories Network (NAHLN) 2003
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Proposed Biosafety Level 4 sites Flora, Mississippi Athens, Georgia San Antonio, Texas Butner, North Carolina Manhattan, Kansas
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African Horse Sickness
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Avian Influenza
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Low Pathogenicity (LPAI) High Pathogenicity (HPAI) Avian influenza Natural Host: Waterfowl (ducks, geese etc.) Domestic species affected –Chickens, ducks, geese, turkeys, guinea fowl, quail and pheasant –Some pet birds
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Symptoms of HPAI A lot of birds affected –Dead birds –Very sick birds –Coughing and sneezing –Swollen combs and wattles –Discolored and swollen joints –Diarrhea
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Avian Influenza
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Cyanotic Comb
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VVND Edema and hemorrhage of the head esp. eyelids
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VVND Hemorrhages in proventriculus
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VVND Necrosis of cecal tonsil and Peyer’s patches
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African Swine Fever Reddening of ears and skin (non-specific)
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African Swine Fever Enlarged dark red or black spleen. Note kidney
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African Swine Fever Hemorrhagic gastro-hepatic lymph nodes
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African Swine Fever Enlarged, hemorrhagic peri-renal lymph nodes
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Hog Cholera Conjunctivitis and exudate at medial canthus
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Hog Cholera Tonsillar necrosis
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Hog Cholera Splenic infarcts
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Hog Cholera Petechial hemorrhages in renal cortex
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Rinderpest
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BVD
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EHD in a cow
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Rinderpest Necrosis of Peyer’s patches
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Rinderpest Zebra stripe hemorrhages of colonic mucosa
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Peste des Petits Ruminants Zebra stripe hemorrhages of colonic mucosa - goat
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Stomatitis-Enteritis Case Definition Ocular Discharge Nasal Discharge And Fever Oral Erosions/Lesions Salivation Corneal Opacity Diarrhea Death Outbreaks of contagious disease exhibiting discharge (ocular and nasal) and any two of the above-mentioned symptoms should be reported as stomatitis-enteritis outbreaks. Note that it is the outbreak that must meet the case definition, not individual animals. The stomatitis-enteritis case definition is used to ensure that all case that could be Rinderpest are investigated
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How to Do the Gel Diffusion Test for Rinderpest
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Bluetongue EHD
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Contagious Bovine Pleuropneumonia
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Malignant Catarrhal Fever
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Cutaneous lymphosarcoma
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Lumpy Skin Disease
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Lumpy skin disease massive lymphadenopathy and edema of the forelimb is common
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Lumpy Skin Disease
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From: The Gray Book Sheep pox lesions on underside of tail of a sheep
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Recovered case of lumpy skin disease. The scars are called “sitfasts”
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