Daily Archives: March 8, 2017


USDA Confirms HPAI in Lincoln County, Tennessee

On March 5th the United States Department of Agriculture (USDA) confirmed the detection of Highly Pathogenic H7 Avian Influenza in a commercial chicken breeder flock in Lincoln County, Tennessee, within the Mississippi flyway.  Please see the full announcement from the USDA, included at the end of this post.   We are able to provide you with additional information on this event via staff participation in a USDA industry update, and cooperation from Dr. Hayley Murphy of Zoo Atlanta, who is participating in regional calls as a subject matter expert  on the zoological community for the Georgia Department of Agriculture.  Updates on this event are as follows:  A large Surveillance Zone has been established with a 10-mile radius; this was extended from the standard 10 kilometer radius at the producer’s request.  So far, all samples from other barns on the index premises are negative for HPAI, as are samples from other sites in the surveillance area.   Initial sequencing indicates that this H7 is North American, wild bird origin.  At this time, the risk to human safety appears to be low.  Low path H7 strains have been detected in routine wild bird surveillance this year with no associated outbreaks in poultry.  This is the first HPAI H7 detected in poultry this year.  USDA continues to collect samples and will adjust surveillance strategies as more is known about this virus, or if any other premises become infected. Dr. Hayley Murphy of Zoo Atlanta is participating in regional phone calls as warranted, and will provide any pertinent information for dissemination to this group.  Update:  USDA’s National Veterinary Services Laboratories (NVSL) have identified the virus as North American wild bird lineage H7N9.  This is NOT the same as the China H7N9 virus that has impacted poultry and infected humans in Asia.  See the press release for additional information.  There has also been a detection of Low Pathogenic AI, H5N2 in a turkey flock in Wisconsin.  This is also a North American origin virus and there has not been any morbidity or mortality in connection with the virus in these birds thus far, therefore not meeting any criteria for a case definition of HPAI.  USDA and Wisconsin continue to monitor this situation, and ZAHP will provide addition al updates on this detection as warranted. Depending on location, exhibitors may be contacted about participating in surveillance.  Expect that recommendations will include strong messages about prevention of contact between backyard poultry and wild birds ( this includes domestic poultry in outdoor exhibits).   Facilities looking to evaluate their preparedness for an Avian Influenza outbreak may want to review the HPAI Checklist developed by the ZAHP Fusion Center.  Please do not hesitate to contact us if you have any questions or concerns, or would like to receive updates directly to your inbox.  USDA Confirms Highly Pathogenic H7 Avian Influenza in a Commercial Flock in Lincoln County, Tennessee Last Modified: Mar 6, 2017 Print Contacts: Donna Karlsons, 301-851-4107 Donna.L.Karlsons@aphis.usda.gov Lyndsay Cole, 970-494-7410 Lyndsay.M.Cole@aphis.usda.gov March 5, 2017, Washington – The United States Department of […]