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Avian flu confirmed in commercial turkey flock in California
Source: AP-Excite
WASHINGTON (AP) Federal agriculture officials say they have found avian influenza in a commercial turkey flock in central California.
The U.S. Department of Agriculture said Saturday that the facility in Stanislaus County has been quarantined and birds from the affected flock will not enter the food system.
Testing occurred after the flock experienced a spike in deaths.
FULL story at link.
Read more: http://apnews.excite.com/article/20150124/us--avian_flu-california-89c8c36601.html
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Avian flu confirmed in commercial turkey flock in California (Original Post)
Omaha Steve
Jan 2015
OP
SoapBox
(18,791 posts)1. At the link...
Says strain H5N8 is not known to be contracted by humans.
Hubert Flottz
(37,726 posts)2. How long before H5N8 mutates into
a strain that attacks humans. Best to nip it in the bud.
DhhD
(4,695 posts)3. Origin of H5N8 from other Subtypes; H5N8 being HPAI-highly pathogenic avian influenza.
http://wwwnc.cdc.gov/eid/article/20/6/pdfs/14-0233.pdf
snip
A BLAST (www.ncbi.nlm.nih.
gov/genomes/FLU/FLU.html) search
and phylogenetic analysis showed
that these novel H5N8 subtype viruses
likely originated from reassortment between A/duck/Jiangsu/k1203/2010
(H5N8) virus and other subtypes of
avian influenza virus, all of which cocirculated
in birds in eastern China
during 20092012 (10). A phylogenetic
tree of partial HA gene sequences
for the 3 virus isolates from South
Korea and other H5 subtype viruses (n
= 72), showed that Gochang1, Buan2,
and Donglime3 belong to the proposed
H5 clade 2.3.4.6 (Figure) (10).
More at site source. On Page 2, of three pages, is a clade of the phylogeny of Subtypes.
As you can see the subtype genes can move between viruses in the same organism. There are several web links to more information in the study.
I believe that the current Flu Vaccine (not for Avian Flu) is based on immunization for Subtype genes for current human A and B types.
snip
A BLAST (www.ncbi.nlm.nih.
gov/genomes/FLU/FLU.html) search
and phylogenetic analysis showed
that these novel H5N8 subtype viruses
likely originated from reassortment between A/duck/Jiangsu/k1203/2010
(H5N8) virus and other subtypes of
avian influenza virus, all of which cocirculated
in birds in eastern China
during 20092012 (10). A phylogenetic
tree of partial HA gene sequences
for the 3 virus isolates from South
Korea and other H5 subtype viruses (n
= 72), showed that Gochang1, Buan2,
and Donglime3 belong to the proposed
H5 clade 2.3.4.6 (Figure) (10).
More at site source. On Page 2, of three pages, is a clade of the phylogeny of Subtypes.
As you can see the subtype genes can move between viruses in the same organism. There are several web links to more information in the study.
I believe that the current Flu Vaccine (not for Avian Flu) is based on immunization for Subtype genes for current human A and B types.