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  • influenza in sparrows

    checking pubmed for influenza and sparrows:
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    Waterfowl and shorebirds are well-recognized natural reservoirs of low-pathogenicity avian influenza viruses (LPAIV); however, little is known about the role of passerines in avian influenza virus ecology. Passerines are abundant, widespread, and commonly come into contact with free-ranging birds as …

    LPAIV H3N8
    Oropharyngeal shedding was short lived, and was detected in more
    starlings (97.2%) than sparrows (47.2%; n=36 of each).
    Cloacal shedding was rare in both species (8.3%; n=36 of each)
    and no cage-mate transmission occurred
    50% of these individuals seroconverted by 5 d.p.i., and nearly
    all birds (97%; n=35) seroconverted by 28 d.p.i.
    In general, pre-existing homologous immunity led to reduced shedding
    and increased antibody levels within 7 days of challenge
    ... passerines are not significant reservoirs
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    HP H5N1 A/duck/Laos/25/06
    sparrows and chickens.
    Inoculated birds shed virus at high titers from the oropharynx and cloaca, and infection was fatal.
    Waterborne transmission from inoculated sparrows to contact chickens was absent,
    while 25% of sparrows were infected via waterborne transmission from chickens.
    The viral shedding and susceptibility to infection we observed in sparrows,
    coupled with their presence in poultry houses, could facilitate virus spread
    among poultry and wild birds in the face of an H5N1 influenza virus outbreak.
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    A/tree sparrow/Jiangsu/1/08) genotype V A/Jiangsu/1/07 (H5N1),
    genotype V : most of human fatal cases in China during 2005-2008
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    Terrestrial wild birds commonly associated with poultry farms have the potential to contribute to the spread of H5N1 highly pathogenic avian influenza (HPAI) virus within or between poultry facilities or between domesticated and wild bird populations. This potential, however, varies between species …

    A/whooper swan/Mongolia/244/05 (H5N1
    house sparrows were highly susceptible
    excreted virus via the oropharynx and cloaca for several days prior to the onset of clinical signs
    pigeons were resistant duration of viral shedding was brief, and viral titers were low
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    Influenza virus (H5N1) in live bird markets and food markets, Thailand.
    only during the 3-month winter season (November?January
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    The paper presents the results of interpreting the epizootic outbreak etiologically associated with high-virulent influenza virus A/H5N1 among domestic and wild birds in the Zernogradsky and Tselinsky districts of the Rostov Region. Epizooty was characterized by a high infection rate in the synanthr …

    Rostow-region,2007:
    RT-PCT revealed influenza virus A/H5 in 60% of pigeons and crows and in around
    20% of starlings and 10% of tree sparrows
    Fifteen viral strains from chickens (Gallus gallus domesticus),
    Indian ducks (Cairina moschata), rooks (Corvus frugilegus),
    rock pigeons (Columba livia), tree sparrows (Passer montanus),
    common starlings (Sturnus vulgaris), and great white herons (Egretta alba) were isolated
    ----------------------------------------------------------------------
    House sparrows, European starlings, and Carneux pigeons were inoculated with 4 influenza A (H5N1) viruses isolated from different avian species. We monitored viral replication, death after infection, and transmission to uninfected contact birds of the same species. Sparrows were susceptible to sever …

    Sparrows were susceptible to severe infection; 66%-100% of birds died within 4-7 days. High levels of virus were detected from oropharyngeal and cloacal swabs and in organs of deceased sparrows. Inoculation of starlings caused no deaths, despite high levels of virus shedding evident in oropharyngeal swabs. Least susceptible were pigeons, which had no deaths and very low levels of virus in oropharyngeal and cloacal swabs. Transmission to contact birds did not occur frequently: only A/common magpie/Hong Kong/645/2006 virus was shown to transmit to 1 starling.
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    A total of 1 330 oropharyngeal swabs collected from wild and domestic birds in Lebanon were examined by reverse transcriptase-polymerase chain reaction (RT-PCR) for type A avian influenza virus (AIV) during the migratory season between the autumn of 2005 and winter of 2006. Twenty-five species of bi …

    1330 oropharyngeal swabs collected from wild and domestic birds in Lebanon
    190(14.3%) positive by RT-PCR
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    Since 1997, high-pathogenicity avian influenza (HPAI) virus infection in poultry "avian plague" has emerged as a potential threat to human health, with some fatal cases of bird-to-human transmission. These sporadic infections are caused by H7N7 and H5N1 viruses in Europe and Asia, respectively. The …

    Highly pathogenic avian influenza in poultry (fowl plague); implications for human health].
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    http://www.ncbi.nlm.nih.gov/pmc/arti...2/?tool=pubmed ,2005
    New genotype of avian influenza H5N1 viruses isolated from tree sparrows in China.
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    http://www.ncbi.nlm.nih.gov/pubmed/12627709 , 2003
    A/chicken/Hong Kong/220/97
    zebra finches (Taeniopygia guttata), house finches (Carpodacus mexicanus),
    house sparrows (Passer domesticus), European starlings (Sternus vulgaris),
    and budgerigars (Melopsittacus undulatus) after intranasal administration.
    Zebra finches were the most severely affected of the five species,100% mortality
    Significant morbidity and mortality in house finches and budgerigars.
    house sparrows suffered only mild transient depression
    Starlings demonstrated no clinical disease
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    http://www.ncbi.nlm.nih.gov/pubmed/18679964 ,1990,Spain
    Of 927 sera taken from poultry from 84 flocks, 33% proved seropositive
    Notable high infection rates were found among Anatidae (43%),
    flamingoes (43%) and sparrows (31%); the latter species may play an
    important role in carrying the disease from its natural reservoirs to domestic farms
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    http://www.ncbi.nlm.nih.gov/pubmed/3660587 , 1987 Australia
    A/Starling/Victoria/5156/85
    serological evidence of H7N7 virus infection was found in sparrows.
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    http://www.ncbi.nlm.nih.gov/pubmed/2420068 Ukraine,1985
    A/sparrow/Ukraine/83
    A/sparrow/Ukraine/83 was isolated from a member of synanthropic birds, a tree sparrow, near Kanev. This virus showed low pathogenicity and immunologic activity in experimental infection of sparrows and other birds. Sera from a number of avian and mammal species had antibodies to this virus which indicates that synanthropic and semi-synanthropic birds may be a connecting link in spread of influenza virus.
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    I'm interested in expert panflu damage estimates
    my current links: http://bit.ly/hFI7H ILI-charts: http://bit.ly/CcRgT

  • #2
    Re: influenza in sparrows

    http://www.ncbi.nlm.nih.gov/pubmed/3055662 , 1988
    Isolation of avian influenza virus (AIV) has been reported from 12 orders and 88 species of free-living birds
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    Mapping the risk of avian influenza in wild birds in the US
    13,046 cloacal samples collected from 225 bird species in 41 US states between 2005 and 2008
    indicates that the average prevalence of influenza in passerines is greater than the prevalence in
    8 other avian orders. Our regression model identifies the Great Plains and the Pacific Northwest
    as high-risk areas for AIV. Highly significant predictors of AIV include the amount of harvested
    cropland and the first day of the year when a county is snow free.
    Conclusions
    Although the prevalence of influenza in waterfowl has long been appreciated,
    we show that 22 species of song birds and perching birds (order Passeriformes)
    are influenza reservoirs in the contiguous US.

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    [+] Antbirds (1 C, 6 P),[×] Antpittas (2 P),[×] Bushbirds (1 P)
    [+] Flycatchers (2 C),[×] Leaftossers (1 P)M,[×] Manakins (1 P)
    [×] Ovenbirds (1 P),[×] Pittas (1 P),[×] Reedhaunters (1 P)
    [+] Songbirds (35 C, 1 P)S cont.,[×] Spinetails (2 P),[×] Tapaculos (1 P)
    [×] Tityras (2 P),[×] Woodcreepers (2 P
    I'm interested in expert panflu damage estimates
    my current links: http://bit.ly/hFI7H ILI-charts: http://bit.ly/CcRgT

    Comment


    • #3
      Re: influenza in sparrows

      1-8 : A/tree sparrow/HK/864/2002(H5N1))
      4,6,7,8 : A/sparrow/Phang-Nga/Thailand/CU-203/04(H5N1))
      4,8 : A/sparrow/Thailand/Phitsanulok-01/2004(H5N1))
      1-8 : A/tree sparrow/Henan/1/2004(H5N1))
      1-8 : A/tree sparrow/Henan/2/2004(H5N1))
      1-8 : A/tree sparrow/Henan/3/2004(H5N1))
      1-8 : A/tree sparrow/Henan/4/2004(H5N1))
      1-8 : A/tree sparrow/Rachaburi/VSMU-16-RBR/2005(H5N1))
      4,6 : A/tree sparrow/Thailand/VSMU-12-KRI/2005(H5N1))
      1-8 : A/tree sparrow/Thailand/VSMU-14-KRI/2005(H5N1))
      1-8 : A/tree sparrow/Thailand/VSMU-16-RBR/2005(H5N1))
      4,6 : A/sparrow/Guangxi/09/2005(H9N2))
      4,6 : A/sparrow/Guangxi/11/2005(H9N2))
      4 : A/house sparrow/Turkey/Ladik ist29/2006(H5N1))
      4 : A/sparrow/Turkey/Bafra 1095/2006(H5N1))
      4: A/sparrow/Turkey/Bafra 1096/2006(H5N1))
      4,6 : A/sparrow/Guangxi/31/2006(H9N2))
      7 : A/fox sparrow/Idaho/CTR-AIV10/2006)
      7 : A/song sparrow/Washington/CTR-AIV29/2006)
      4,6 : A/sparrow/Guangxi/47/2006(H9N2))
      4,6 : A/sparrow/Guangxi/93/2006(H9N2))
      4 : A/sparrow/Turkey/Merkez 495/2007(H5N1))
      4,6 : A/sparrow/Guangxi/121/2007(H9N2))
      1-8 : A/tree sparrow/Jiangsu/1/2008(H5N1))
      I'm interested in expert panflu damage estimates
      my current links: http://bit.ly/hFI7H ILI-charts: http://bit.ly/CcRgT

      Comment

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