NAGA News September/October 2016 26 T he viruses causing outbreaks of highly pathogenic H5 avian flu that spread across North American poultry farms in late 2014 into the sum- mer of 2015 did not persist in wild aquatic birds like ducks, suggesting they are not an ongoing source of highly pathogenic avian influenza (HPAI) viruses, according to a new study published in Proceedings of the National Academy of Sciences. “The findings provide a scientific basis for the decision by officials to use culling and quarantines to stop the 2014-15 outbreak in domes- tic poultry,” corresponding author Robert Webster, PhD, an emeritus member of the St. Jude Department of Infectious Diseases, said in a St. Jude news release. “Now, research is needed to identify the mechanism that has evolved in these wild birds to disrupt the perpetuation of highly pathogenic influenza.” While wild ducks and other aquatic birds are known to be natural hosts for low pathogenic flu viruses associated with milder symptoms, the results of this study indicate that is not the case with the highly pathogenic flu viruses that are associated with more severe illness. The research suggests that wild ducks and other aquatic birds are not an ongoing source of highly pathogenic flu infection in domestic poultry. St. Jude and other U.S. research- ers analyzed swabs from birds’ throats and anal regions, as well as bird droppings from 22,892 wild ducks and other aquatic birds col- lected before, during, and after the 2014-15 HPAI outbreak, which has been linked to HPAI H5N8 from Asia. Samples were collected in the United States Game Bird Health And Biosecurity Study Suggests Wild Birds Not Long- Term Reservoir For High-Path H5 Strains Upcoming Issues Advertising and Submission Deadlines: Mar/April 2017 Health And Wellness (Jan. 25, 2017) Jan/Feb 2017 Added Value (Nov. 25, 2016) Nov/Dec 2016 Tools Of The Trade (Sept 25, 2016) Have you “liked” the North American Gamebird Association Facebook page yet? We can use this as an extra com- munication tool to keep you in- formed of breaking and pertinent news, as well as member informa- tion that is not contained in the NAGA News… Advertisers allow NAGA to bring you this magazine without using membership funds. Please support them! “The waterfowl tested positive for H5 strains only during the outbreak—not before or after. In addition, a review of historical North American wild waterfowl samples turned up only low-pathogenic H5 viruses during the past 43 years.” Study, continued on page 30
Transcript
NAGA News September/October 201626
T he viruses causing outbreaks of highly pathogenic H5 avian flu that spread across North
American poultry farms in late 2014 into the sum-mer of 2015 did not persist in wild aquatic birds like ducks, suggesting they are not an ongoing source of highly pathogenic avian influenza (HPAI) viruses, according to a new study published in Proceedings of the National Academy of Sciences.
“The findings provide a scientific basis for the decision by officials to
use culling and quarantines to stop the 2014-15 outbreak in domes-tic poultry,” corresponding author
Robert Webster, PhD, an emeritus member of the St. Jude Department
of Infectious Diseases, said in a St. Jude news release. “Now, research is needed to identify the mechanism that has evolved in these wild birds to disrupt the perpetuation of highly pathogenic influenza.”
While wild ducks and other aquatic birds are known to be natural hosts for low pathogenic flu viruses associated with milder
symptoms, the results of this study indicate that is not the case with the highly pathogenic flu viruses that are associated with more severe illness. The research suggests that wild ducks and other aquatic birds are not an ongoing source of highly pathogenic flu infection in domestic poultry.
St. Jude and other U.S. research-ers analyzed swabs from birds’ throats and anal regions, as well as bird droppings from 22,892 wild ducks and other aquatic birds col-lected before, during, and after the 2014-15 HPAI outbreak, which has been linked to HPAI H5N8 from Asia. Samples were collected in the United States
Game Bird Health And Biosecurity
Study Suggests Wild Birds Not Long-Term Reservoir For High-Path H5 Strains
Upcoming Issues Advertising and Submission Deadlines:
Mar/April 2017Health And Wellness(Jan. 25, 2017)
Jan/Feb 2017Added Value(Nov. 25, 2016)
Nov/Dec 2016Tools Of The Trade(Sept 25, 2016)
Have you “liked” the North American Gamebird Association Facebook page yet?
We can use this as an extra com-munication tool to keep you in-formed of breaking and pertinent news, as well as member informa-tion that is not contained in the NAGA News…
Advertisers allow NAGA to bring
you this magazine without using
membership funds. Please support
them!
“The waterfowl tested positive for H5 strains only during the outbreak—not
before or after. In addition, a review of historical North American wild
waterfowl samples turned up only low-pathogenic H5 viruses during the
past 43 years.”
Study, continued on page 30
NAGA News September/October 201630
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Water HazardThrough the pitch-black night, a ship’s captain sees a light dead-ahead on a collision course with his vessel. He sends a signal:
“Change your course ten degrees east.”
The light signals back: “Change yours, ten degrees west.”
Angry, the captain retorts: “I’m a Navy captain! Change your course, sir!”
To which comes the reply: “I’m a seaman, second class. Change your course sir.”
Now the captain is furious. “I’m a battleship! I’m not changing course!”
There’s one last reply. “I’m a lighthouse. Your call.”
and Canada. The H5N8 virus reasserted, or mixed genes, with other influenza viruses in North American waterfowl and went on to trigger 248 flu outbreaks in commercial and backyard turkey and chicken farms in the U.S. and Canada at a cost of nearly $5 billion in losses.
The waterfowl tested positive for H5 strains only during the outbreak—not before or after. In addition, a review of historical North American wild waterfowl samples turned up only low-pathogenic H5 viruses
during the past 43 years.The findings suggest that undis-
covered mechanisms might restrict the emergence and perpetuation of HPAI in wild aquatic birds, the authors wrote.
They conclude, “Timely and effi-cient strategies used to successfully prevent and eradicate HPAIVs infect-ing poultry, without the use of vac-cines, appear to complement natural biological mechanisms in disrupting the perpetuation and possible spread of HPAIVs by wild aquatic birds.” H
Study, continued from page 26
Numbers GameFour men are in the hospital waiting room because their wives are having babies. A nurse approaches the first guy and says, “Congratulations! You’re the father of twins.”
“That’s odd,” answers the man. “I work for the Minnesota Twins!”
A nurse then tells the second man, “Congratulations! You’re the father of triplets!” “That’s weird,” answers the second man. “I work for the 3M company!”
A nurse goes up to the third man, saying, “Congratulations! You’re the father of quadruplets.” “That’s strange,” he answers. “I work for the Four Seasons hotel!”
At that point the last man begins wailing and banging his head against the wall. “What’s wrong?” the others ask. To which he groans, “I work for 7 Up!”
