Daily Archives: March 17, 2017


USDA Confirms Second Case of HPAI in TN

Yesterday the United States Department of Agriculture (USDA) confirmed a second case of Highly Pathogenic Avian Influenza (HPAI) in a commercial flock in Lincoln County, Tennessee.  This is the same North American wild bird origin H7N9 strain that was previously confirmed in TN. It is NOT the same H7N9 that infected humans in Asia.  The full announcement has been included at the bottom of this email.  As you may be aware,  Low Pathogenic Avian Influenza (LPAI) has also been detected in Tennessee (https://www.tn.gov/agriculture/news/49066) .  While the epidemiology  for both the low and high path strains found is ongoing, they are believed to be closely related. Facilities in the affected area should monitor information provided on their State Animal Health Official’s Websites.   If you would like to stay up to date on surveillance efforts there are a number of reports available here,  https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian-influenza-disease/defend-the-flock/defend-the-flock-ai-wild-birds , including Monthly Summary Data from the National Wild Bird Avian Influenza Surveillance Program.  Looking abroad, the current HPAI outbreak in Europe sadly affected a zoo last week.  Despite being kept in a tent since December as a preventative measure, one of the pelicans at the Schoenbrunn Zoo in Vienna, Austria became acutely ill and was euthanized early last week.  Subsequent testing confirmed the presence of HPAI H5N8  in the rest of the flock, and they were culled in order to protect the zoos remaining bird stock (http://www.agriculture.com/markets/newswire/vienna-zoo-puts-20-pelicans-to-sleep-after-bird-flu-virus-found). A number of you have already contacted the ZAHP Fusion Center with questions and concerns as you work on updating plains for avian influenza, and we encourage you to continue to reach out with your questions.  One commonly requested item is plan examples,  and we do have a handful of de-identified institutional plans that can be provided as an additional resource upon request.  Please send any questions or request to azielinski@aza.org.    USDA Confirms Second Case of Highly Pathogenic Avian Influenza in a Commercial Flock in Lincoln County, Tennessee The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed a second case of highly pathogenic H7N9 avian influenza in a commercial breeder flock in Lincoln County, Tennessee.  This H7N9 strain is of North American wild bird lineage and is the same strain of avian influenza that was previously confirmed in Tennessee.  It is NOT the same as the China H7N9 virus that has impacted poultry and infected humans in Asia.  The flock of 55,000 chickens is located in the Mississippi flyway, within three kilometers of the first Tennessee case. Samples from the affected flock, which displayed signs of illness and experienced increased mortality, were tested at Tennessee’s Kord Animal Health Diagnostic Laboratory and confirmed at the APHIS National Veterinary Services Laboratories (NVSL) in Ames, Iowa. USDA is working with the Tennessee Department of Agriculture on the joint incident response.  State officials quarantined the affected premises, and depopulation has begun.  Federal and State partners will conduct surveillance and testing of commercial and backyard poultry within a 10 kilometer (6.2 mile) radius of the site.   The United States has […]