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Bird samples from Mongolia confirmed as H5N1 avian flu

the lake. The percentage of sick or dead birds was miniscule according to Gilbert following the survey, suggesting that either the virus had little effect on the birds or that very few were actually infected by the bug. Early results suggest that it may be the latter.

Supported by the U.N.'s Food and Agriculture Organization (F.A.O.), the team has sent the samples (774 in total) to the U.S.D.A.'s Poultry Research Laboratory in Athens, Georgia, for further testing to determine whether this virus is the H5N1 strain that has killed over 50 people in Southeast Asia and more than 5,000 wild birds in western China. As of today, preliminary tests from one dead whooper swan collected in Mongolia have shown the presence of the H5N1 strain of Avian Influenza using RT-PCR, while results from 30 live whooper swans living at the same site and also a nearby lake were negative for the virus. Samples collected from other live birds at the two sites, including sixty ruddy shelducks, twenty-four bar-headed geese, and twenty-five black-headed gulls, were found to be negative for the virus.

Whereas prior outbreaks in wild birds have happened either in close proximity to infected domestic poultry and waterfowl, or in regions where such contact could not be excluded, Mongolia's paucity of domestic poultry suggests a new vector of avian flu. Finding the H5N1 strain during this expedition suggests that while the highly pathogenic avian influenza can be carried across long distances, the waterfowl species typically identified in recent outbreaks appear to be victims rather than effective carriers of the disease.

The multidisciplinary, collaborative response to this latest outbreak reflects the WCS One World-One Health approach to making informed, multidisciplinary decisions on global health crises that intersect human, wildlife, and livestock health. WCS experts are warning that to contain this potential epidemic, prevention activities must
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Source:Wildlife Conservation Society


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