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to determining a cause of death disease investigation specialists provide useful ... highly pathogenic avian influenza (HPAI) both in response to disease ...

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ATTACHMENT 2Page 1ATTACHMENT 2Migratory Bird Flyways in Asia and North America Figure 21: Asian Migratory Bird Flyways Figure 22. North American Migratory Bird Flyways Pacific FlywayAtlantic FlywayCentral FlywayMississippi FlywayPage 2ATTACHMENT 3Investigation of Morbidity and Mortality Events in Wild Birds Overview The systematic investigation of morbidity and mortality events in wild birds to determine if the highly pathogenic H5N1 avian influenza subtype of avian influenza (AI) is playing a role in causing illness and death offers the highest and earliest probability of detecting the virus if it is introduced by migratory birds into the United States. There is increasing evidence that highly pathogenic H5N1 avian influenza virus is capable of killing wild birds which is not the usual characteristic of AI viruses. As such the documentation of the movement of the virus through Asia and into Europe has been discovered in part through the investigation of mortality events of wild migratory birds. Benefits gained from conducting disease investigations of wildlife mortality events are not unique to AI. Many other important diseases have been discovered and described after initial detection through the wildlife disease investigation process (e.g. West Nile Virus). The investigation of wildlife diseases operates with consistent procedures while maintaining enough flexibility to accommodate the unique characteristics of specific disease agents involved. The initial detection of a mortality event is strongly dependent upon welltrained and observant field personnel. These people in turn communicate with an experienced staff of disease investigation specialists that obtain the maximum amount ofinformation surrounding the event. Depending upon the significance and intensity of the mortality event these highly trained investigators may visit the site of the mortality event to conduct field investigations so as to obtain further information first hand. In addition t ...

Source: www.usda.gov

 

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