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has emerged in Asia the Highly Pathogenic AI (HPAI) H5N1 virus. ... cause mortality. Similarly virus subtypes that cause disease in domestic fowl do not ...

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1 MICHIGAN SURVEILLANCE AND RESPONSE PLAN FOR HIGHLY PATHOGENIC AVIAN INFLUENZA IN FREERANGING WILDLIFEPage 11MICHIGAN SURVEILLANCE AND RESPONSE PLAN FOR HIGHLY PATHOGENIC AVIAN INFLUENZA IN FREERANGING WILDLIFEMichigan Department of Natural Resources Wildlife DivisionPhoto Credit: U.S. Department of the Interior/ U.S. Geological SurveyJanuary 27 2006Great Lakes Great Times Great Outdoors www.michigan.gov/dnr Page 22Michigan Surveillance and Response Plan for Highly Pathogenic Avian Influenza in Freeranging Wildlife Michigan Department of Natural Resources Wildlife Division Avian influenza (AI) is a disease caused by a virus found in wild birds especiallywaterfowl and shorebirds. The virus is found only in small numbers of birds in the wild and infection typically causes few if any symptoms. The virus is shed in fecal droppings saliva andnasal discharges. Since 2003 a strain of AI virus capable of causing particularly severe disease has emerged in Asia the Highly Pathogenic AI (HPAI) H5N1 virus. HPAI H5N1 probably originated from domestic poultry in Asia. It is of critical concern because: 1) it poses a threat todomestic poultry especially chickens; 2) it has caused illness in approximately 150 persons including the deaths of at least 74 people as of January 6 2006; and 3) the emergence of HPAI H5N1 in humans poses a potential global pandemic (i.e. worldwide epidemic) influenza threat. Most human HPAI H5N1 cases are thought to have acquired HPAI H5N1 virus infection through direct handling of infected poultry consumption of uncooked poultry products or contact with viruscontaminated surfaces/materials. Limited persontoperson transmission of HPAI H5N1 has also been documented. Avian influenza viruses other than HPAI H5N1 have been found in many bird species but are most often found in migratory waterfowl. However the only documentedmortality event in wild birds prior to the current MPAI H5N1 outbreak killed common terns in South Africa in 1961. This document prop ...

Source: www.michigan.gov

 

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