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In 2006 several avian influenza human cases in Azerbaijan and Indonesia were suspected to have contracted H5N1 from poultry feathers. Swan feathers were implicated Azerbiajan. The 18 year old Indonesian was a shuttlecock maker.
Persistence of Avian Influenza Virus (H5N1) in Feathers Detached from Bodies of Infected Domestic Ducks
Applied and Environmental Microbiology, August 2010, p. 5496-5499, Vol. 76, No. 16 doi:10.1128/AEM.00563-10
Yu Yamamoto, Kikuyasu Nakamura, Manabu Yamada, and Masaji Mase <o:p></o:p>
National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba, Ibaraki, Japan <o:p></o:p>
Received 3 March 2010/ Accepted 18 June 2010<o:p></o:p>
Asian lineage highly pathogenic avian influenza virus (H5N1)<sup> </sup>continues to cause mortality in poultry and wild bird populations<sup> </sup>at a panzootic scale. However, little is known about its persistence<sup> </sup>in contaminated tissues derived from infected birds. We investigated<sup> </sup>avian influenza virus (H5N1) persistence in feathers detached<sup> </sup>from bodies of infected ducks to evaluate their potential risk<sup> </sup>for environmental contamination. Four-week-old domestic ducks<sup> </sup>were inoculated with different clades of avian influenza virus<sup> </sup>(H5N1). Feathers, drinking water, and feces were collected on<sup> </sup>day 3 postinoculation and stored at 4?C or 20?C. Viral<sup> </sup>persistence in samples was investigated for 360 days by virus<sup> </sup>isolation and reverse transcription-PCR. Infectious viruses<sup> </sup>persisted for the longest period in feathers, compared with<sup> </sup>drinking water and feces, at both 4?C and 20?C. Viral<sup> </sup>infectivity persisted in the feathers for 160 days at 4?C<sup> </sup>and for 15 days at 20?C. Viral titers of 10<sup>4.3</sup> 50% egg infectious<sup> </sup>doses/ml or greater were detected for 120 days in feathers stored<sup> </sup>at 4?C. Viral RNA in feathers was more stable than the infectivity.<sup> </sup>These results indicate that feathers detached from domestic<sup> </sup>ducks infected with highly pathogenic avian influenza virus<sup> </sup>(H5N1) can be a source of environmental contamination and may<sup> </sup>function as fomites with high viral loads in the environment.
Also, see this thread:<o:p>
</o:p>
http://www.flutrackers.com/forum/showpost.php?p=181776&postcount=1
hat tip to Carol@SC
<o:p></o:p>
Persistence of Avian Influenza Virus (H5N1) in Feathers Detached from Bodies of Infected Domestic Ducks
Applied and Environmental Microbiology, August 2010, p. 5496-5499, Vol. 76, No. 16 doi:10.1128/AEM.00563-10
Yu Yamamoto, Kikuyasu Nakamura, Manabu Yamada, and Masaji Mase <o:p></o:p>
National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba, Ibaraki, Japan <o:p></o:p>
Received 3 March 2010/ Accepted 18 June 2010<o:p></o:p>
Asian lineage highly pathogenic avian influenza virus (H5N1)<sup> </sup>continues to cause mortality in poultry and wild bird populations<sup> </sup>at a panzootic scale. However, little is known about its persistence<sup> </sup>in contaminated tissues derived from infected birds. We investigated<sup> </sup>avian influenza virus (H5N1) persistence in feathers detached<sup> </sup>from bodies of infected ducks to evaluate their potential risk<sup> </sup>for environmental contamination. Four-week-old domestic ducks<sup> </sup>were inoculated with different clades of avian influenza virus<sup> </sup>(H5N1). Feathers, drinking water, and feces were collected on<sup> </sup>day 3 postinoculation and stored at 4?C or 20?C. Viral<sup> </sup>persistence in samples was investigated for 360 days by virus<sup> </sup>isolation and reverse transcription-PCR. Infectious viruses<sup> </sup>persisted for the longest period in feathers, compared with<sup> </sup>drinking water and feces, at both 4?C and 20?C. Viral<sup> </sup>infectivity persisted in the feathers for 160 days at 4?C<sup> </sup>and for 15 days at 20?C. Viral titers of 10<sup>4.3</sup> 50% egg infectious<sup> </sup>doses/ml or greater were detected for 120 days in feathers stored<sup> </sup>at 4?C. Viral RNA in feathers was more stable than the infectivity.<sup> </sup>These results indicate that feathers detached from domestic<sup> </sup>ducks infected with highly pathogenic avian influenza virus<sup> </sup>(H5N1) can be a source of environmental contamination and may<sup> </sup>function as fomites with high viral loads in the environment.
Also, see this thread:<o:p>
</o:p>
http://www.flutrackers.com/forum/showpost.php?p=181776&postcount=1
hat tip to Carol@SC
<o:p></o:p>