University of Maryland Extension

Avian Influenza (A.I.) Updates/Information

Biosecurity Update - Avian Influenza
Jonathan Moyle, Poultry Specialist, University of Maryland Poultry Extension

  • Spring Commercial Poultry Newsletter  (2017)

    March 5, 2017, Washington – The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed the presence of highly pathogenic H7 avian influenza (HPAI) of North American wild bird lineage in a commercial chicken breeder flock in Lincoln County, Tennessee. This is the first confirmed case of HPAI in commercial poultry in the United States this year. The flock of 73,500 is located within the Mississippi flyway. Samples from the affected flock, which 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.  Virus isolation is ongoing, and NVSL expects to characterize the neuraminidase protein, or “N-type”, of the virus within 48 hours.

     APHIS is working closely with the Tennessee Department of Agriculture on a joint   incident response. State officials quarantined the affected premises and birds on the property will be depopulated to prevent the spread of the disease. Birds from the flock will not enter the food system.




For general information on Avian Influenza, visit the AI eXtension homepage:

Also visit the Avian Influenza Facebook page for recent developments and discussions on AI:

To track AI outbreaks in the U.S., go to:



For AI biosecurity Moodle courses, go to: then click on

Create an eXtension username and password if you don’t have an eXtension account.

For AI Biosecurity for backyard flock owners and emergency responders, go to: 

For AI biosecurity for youth and 4-H members, go to: then click on Avian Influenza Biosecurity for Youth and 4H Members

For other helpful resources on AI, go to:

For current status of A.I. in Maryland, see the Bird Flu Blog at:


  and follow @MdBirdFlu on Twitter.   Also, see the Bird Flu Press Kit at:




Prepared By The University of Maryland Poultry Extension Team

Jonathan Moyle, Ph.D., Poultry Specialist

Nathanial L. Tablante, DVM, MPVM, MS, DACPV

Associate Professor and Extension Poultry Veterinarian

Jennifer L. Rhodes, Sr. Agent, Extension Educator

Nickolas G. Zimmerman, Ph.D., Animal & Avian Sciences



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