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Published byBruce Sherman Modified over 9 years ago
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Avian Influenza 101 Prepared by the Indiana State Board of Animal Health May 2006
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Goals: Understand differences in flu types Recognize relative risk Discuss food safety aspects Know how to handle dead birds
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3 Categories of Flu Pandemic flu is NOT bird flu!
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3 Categories of Flu Pandemic Flu Does not currently exist Warnings are based on predictions An existing virus must mutate first Human-to-human transmission Predicted based on historical cycles About 3 every century
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3 Categories of Flu Avian Influenza H5N1 One strain of many Most active in Asia Has not been found in North America
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3 Categories of Flu All other avian influenzas Many other strains of the virus May or may not have human health affects Most do not Considered a general economic, as well as health, threat to poultry industry Routine flock testing by industry, USDA and Indiana State Board of Animal Health
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What Is Avian Flu? Simple Answer: A Virus
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Avian Influenza Numerous subtypes HxNx: 16 Hs and 9 Ns Theoretically 144 combinations Antigens on the virus surface Few have human health impact H5N1, H7N2, H7N3, H7N7, H9N2 Most no more than conjunctivitis
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Avian Influenza Why the concern about H5N1? Unique transmission directly to people Only with very close contact with birds No sustained human-to-human transmission Some similarities to 1918 strain High death rate among reported cases
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Low-Path AI: Key Facts Does occur periodically in the U.S. Naturally in wild bird populations No known human health affects Is not cause for fear
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High Path AI: Key Facts Not currently found in N. America Texas, British Columbia: 2004 Pennsylvania: 1983-84 H5N1 currently not readily transmissible to humans No sustained human-human spread High death rate in birds
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HPAI: Clinical Signs Sudden death without signs Lack of energy, appetite Reduced egg production Swollen head, eyelids, comb, wattles Discolored purple wattles, comb, legs Nasal discharge, coughing, sneezing Report cases to: 866-536-7593
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What is Our Risk of H5N1? Indiana is not a high-risk state
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H5N1 Risk U.S. ban on trade with countries with HPAI infection No live birds, eggs or poultry products Most U.S. poultry raised indoors High biosecurity in commercial flocks Close bird contact is uncommon In homes
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H5N1 Risk Migratory birds Waterfowl on international fly-ways Nationwide testing of wild birds Pacific rim/Alaska Indiana is not on a major fly-way Resident Canada geese are low risk USDA, DNR targeted surveillance
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Can I Get AI From Eating Eggs or Poultry? AI is not a food safety threat
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Food Safety If properly handled, AI is no threat Wash your hands when handling food Clean all surfaces in contact with raw meat Keep foods cold before and after cooking Do not cross-contaminate Cook poultry to 170 degrees F Avian influenza virus is killed at 140 F
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Food Safety Poultry products are inspected Twice: before and after slaughter Sick, dead birds are not processed All flocks are tested for AI Infected flocks are destroyed without entering the food chain
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How Do I Know My Food Supply Is Safe? Testing and Inspection
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Food Supply Safety U.S. agriculture is different Commercial flocks raised indoors Biosecurity prevents wild bird exposure Poultry raised away from other species Animals not kept in homes/close human contact Flocks regularly tested for disease 75,000+ birds in IN this year
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HOGS HOG MANURE
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Sleeping with peacock
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Food Supply Safety U.S. food consumption is different Healthy birds slaughtered under inspection Cultural food preferences are lower risk Thorough cooking Live bird markets uncommon in U.S. Birds are slaughtered on-the-spot Indiana has banned traditional markets
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What If I Find A Dead Bird? Don’t worry!
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Birds Die for Lots of Reasons Natural deaths Predators, severe weather, short life span Accidents Impacts with power lines, aircraft, buildings Toxicants Legal & illegal pest control methods Spoiled grain and dirty bird feeders Environmental contamination
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Birds Die for Lots of Reasons Diseases Most do not have human health affects! West Nile virus Blue jays, robins, crows, cardinals, raptors Call your LOCAL health department Avian influenza Migratory geese, ducks, swans, shorebirds Call Wildlife Conflicts Hotline 800-893-4116
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Tips for Dead Wild Birds Do not handle it Treat it like dog poop! Wear disposable gloves or place a plastic bag over your hand to pick it up Place it in a plastic bag Wash your hands afterward Dispose of it in your garbage
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