This discusses a finding actually from 2003, but newish journal article.
From a July 14 entry at ProMedMail.org:
Source: Virology, 17 Jun 2005 (abstract link)
From a July 14 entry at ProMedMail.org:
Source: Virology, 17 Jun 2005 (abstract link)
(edited)
Japan: Characterization of an H5N1 Influenza virus in imported Duck Meat
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The following is the abstract of a paper authored by M. Mase and 7 others at
the Department of Infectious Diseases, National Institute of Animal Health, 3-1-
5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan, entitled "Isolation of a
genotypically unique H5N1 influenza virus from duck meat imported into Japan
from China", published ahead of print in Virology 17 Jun 2005.
"An influenza A (H5N1) virus was isolated from duck meat processed for human
consumption, imported to Japan from Shandong Province, China in 2003. This
virus was antigenically different from other H5 viruses, including the Hong
Kong H5N1 viruses isolated from humans in 1997 and 2003. Sequence analysis
revealed that 6 genes (PB1, PA, HA, NA, M, and NS) of this virus showed greater
than 97 percent nucleotide identity with their counterparts from recent H5N1
viruses...
This duck meat isolate was highly pathogenic to chickens upon
intravenous or intranasal inoculation, replicated well in the lungs of mice and
spread to the brain, but was not as pathogenic in mice as H5N1 human isolates...
These results show that poultry products contaminated with influenza viruses of high pathogenic potential to mammals are a threat to public health even in countries where the virus is not enzootic and represent a possible source of influenza outbreaks in poultry.
(The editors or poster at promedmail mentioned: Significant features of this report are: (1) The apparent survival of an avian influenza virus in processed duck meat destined for export...)Japan: Characterization of an H5N1 Influenza virus in imported Duck Meat
------------------------------------------------------------------------
The following is the abstract of a paper authored by M. Mase and 7 others at
the Department of Infectious Diseases, National Institute of Animal Health, 3-1-
5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan, entitled "Isolation of a
genotypically unique H5N1 influenza virus from duck meat imported into Japan
from China", published ahead of print in Virology 17 Jun 2005.
"An influenza A (H5N1) virus was isolated from duck meat processed for human
consumption, imported to Japan from Shandong Province, China in 2003. This
virus was antigenically different from other H5 viruses, including the Hong
Kong H5N1 viruses isolated from humans in 1997 and 2003. Sequence analysis
revealed that 6 genes (PB1, PA, HA, NA, M, and NS) of this virus showed greater
than 97 percent nucleotide identity with their counterparts from recent H5N1
viruses...
This duck meat isolate was highly pathogenic to chickens upon
intravenous or intranasal inoculation, replicated well in the lungs of mice and
spread to the brain, but was not as pathogenic in mice as H5N1 human isolates...
These results show that poultry products contaminated with influenza viruses of high pathogenic potential to mammals are a threat to public health even in countries where the virus is not enzootic and represent a possible source of influenza outbreaks in poultry.