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Chick-News.com Poultry Industry News, Comments and more by Simon M. Shane

Stop Press

01/31/2022

High Prevalence of H5 HPAI in NC Waterfowl

 

The North Carolina Department of Agriculture and Consumer Affairs has reported initial results from the surveillance program to detect avian influenza in migratory waterfowl. Swabs from hunter-killed dabbling ducks of three species were collected at costal sites located in Hyde County and the second at the intersection of Pamlico and Bladen Counties. A total of 594 ducks were sampled. Of the pooled tracheal and cloacal swabs, 83 ducks yielded presumptive H5 AIV on initial screening by the State Rollins Laboratory, corresponding to a positive rate of 14 percent. Of the 83 presumptive isolates referred to the NVSL, 60 have been processed to date with 53 confirmed as H5 all with an Eurasian HPAI genome.

 

The conclusion from this survey in progress is that H5 avian influenza virus of Eurasian origin is present in a high proportion of otherwise healthy migratory waterfowl in the mid-region of the Atlantic Flyway. The implications regarding effective structural and operational biosecurity are self-evident for all commercial poultry operations extending from the Maritime Provinces of Canada southward to Florida. 


 
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