Sentences with phrase «wild bird flu»
Thus, scientists have found that wild bird flu is almost always mild.
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In this study, researchers analyzed throat swabs and other biological samples taken from 22,892 wild ducks and other aquatic birds collected before, during and after a 2014 - 15 H5 flu outbreak in poultry.
A close examination of the flu's pattern of spreading found that it did not in fact coincide with the main wild bird migration routes.
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.
Such viruses have not been identified in any of the more than 100,000 wild birds tested since the flu surveillance sampling began 43 years ago, Webster said.
H5N1 flu, first identified as a threat to humans in Hong Kong in 1997, spreads from Asia around the world, apparently carried by wild birds.
He thinks surveillance of an entire rural ecosystem — pigs, birds, people, as well as dogs, cats, horses, and other domesticated and wild animals — would finally yield some deeper insights into why and how flu viruses evolve.
More than 100 species of wild waterfowl have been identified as natural, usually asymptomatic hosts of a variety of avian influenza A (bird flu) subtypes.
The resulting 198 possible subtypes, from H1N1 to H18N11, could all be called «bird flu» because wild birds are influenza A's natural reservoirs.
Wild birds rarely sicken enough to die from avian flu.
In 2007, the European Union banned imports of wild - caught birds, concerned that they might carry avian flu.
That said, large North American poultry producers isolate their birds from wild birds, and even from humans who have the flu.
When traveling in areas where bird flu is common, travelers can protect themselves by avoiding contact with domestic and wild birds because extensive studies of human cases indicate that direct contact with infected poultry was the cause of the infection.