USGS and collaborators from U.S. Southeast Poultry Research Laboratory of the U.S. Department of Agriculture, the University of Texas and the University of Georgia examined the genetic relationships of avian paramyxoviruses isolated from wild bird samples from across the U.S. to examine the evidence for exchange of viruses among different types of birds such as cormorants, ducks, shorebirds, and gulls. The authors also examined how viruses are dispersed across the continent.
“We found new genetic diversity in these wild bird samples but nothing that suggests that ducks or shorebirds are a reservoir for viruses causing Newcastle disease or strains that are likely to be harmful to domestic poultry,” said Ramey. The authors also found that some genetic diversity of avian paramyxoviruses appears to be widespread among different species and geographic locations whereas other viruses may be limited to certain regions or particular hosts.
The new report is entitled, “Assessment of contemporary genetic diversity and inter-taxa/inter-region exchange of avian paramyxovirus serotype 1 in wild birds sampled in North America” and is available at the website for Virology Journal.