Influenza A Virus Infections in Land Birds, People’s Republic of China

Peterson, A. Townsend; Bush, Sarah E.; Spackman, Erica; Swayne, David E.; Ip, Hon S.

doi:10.3201/eid1410.080169

Cited by 31 publications

(33 citation statements)

References 13 publications

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“…In at least two of the five outbreaks, direct contact with Australian wild waterfowl was implicated as the source of the outbreak (Selleck et al 2003;Hamilton et al 2009). Besides direct contact between waterfowl and poultry, intermediate avian hosts from a wide range of bird species that have high contact rates with both freshwater habitats and poultry may play a role in the transmission of these viruses between waterfowl and poultry Gronesova et al 2008;Peterson et al 2008;Hoye et al 2010b). A highly evocative correlation (Fig.…”

Section: What Role Do Resident Birds Play In the Ecology And Epidemiomentioning

confidence: 99%

Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses—an Australian perspective

Klaassen

Hoye

Roshier

2011

Emu - Austral Ornithology

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Section: What Role Do Resident Birds Play In the Ecology And Epidemiomentioning

confidence: 99%

Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses—an Australian perspective

Klaassen

Hoye

Roshier

2011

Emu - Austral Ornithology

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“…AIV, including some HPAIV, have been isolated or detected by reverse transcriptase-polymerase chain reaction (RT-PCR) in samples originating from free-living passerines of at least 24 species, although these detections are relatively rare (Lipkind et al, 1979;Boudreault et al, 1980;Hinshaw & Webster 1982;Roy et al, 1983;Nestorowicz et al, 1987;Mase et al, 2005;Peterson et al, 2008). Surveys in the USA, Canada, Egypt, Hungary, and Slovakia suggest that numerous freeranging passerines become infected with LPAIV, and therefore could potentially play a role in transmission and spread (Romváry et al, 1976, in Stallknecht & Shane, 1988Johnson et al, 1977;Amin et al, 1980;Boudreault et al, 1980;Al-Attar et al, 2008;Fuller et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Shedding and serologic responses following primary and secondary inoculation of house sparrows (Passer domesticus) and European starlings (Sturnus vulgaris) with low-pathogenicity avian influenza virus

et al. 2010

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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 well as captive game birds and poultry. We inoculated and subsequently challenged house sparrows (Passer domesticus) and European starlings (Sturnus vulgaris) with wild-bird origin LPAIV H3N8 to evaluate their potential role in transmission. 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. Infectious LPAIV was cultured from oropharyngeal and cloacal swabs and gastrointestinal and respiratory tissues from both species. Seroconversion was detected as early as 3 days post inoculation (d.p.i.) (16.7% of sparrows and 0% of starlings; n=6 each); 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. Limited shedding and lack of cage-mate transmission suggest that passerines are not significant reservoirs of LPAIV, although species differences apparently exist. Passerines readily and consistently seroconverted to LPAIV, and therefore inclusion of passerines in epidemiological studies of influenza outbreaks in wildlife and domestic animals may provide further insight into the potential involvement of passerines in avian influenza virus transmission ecology.

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“…To date 16 different HAs and nine different NAs are known and wild birds are reservoir hosts for all subtypes of avian influenza viruses [2]–[4].…”

Section: Introductionmentioning

confidence: 99%

Migratory Status Is Not Related to the Susceptibility to HPAIV H5N1 in an Insectivorous Passerine Species

et al. 2009

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Migratory birds have evolved elaborate physiological adaptations to travelling, the implications for their susceptibility to avian influenza are however unknown. Three groups of stonechats (Saxicola torquata) from (I) strongly migrating, (II) weakly migrating and (III) non-migrating populations were experimentally infected with HPAIV H5N1. The different bird groups of this insectivorous passerine species were infected in autumn, when the migrating populations clearly exhibit migratory restlessness. Following infection, all animals succumbed to the disease from 3 through 7 days post inoculation. Viral shedding, antigen distribution in tissues, and survival time did not differ between the three populations. However, notably, endothelial tropism of the HPAIV infection was exclusively seen in the group of resident birds. In conclusion, our data document for the first time the high susceptibility of an insectivorous passerine species to H5N1 infection, and the epidemiological role of these passerine birds is probably limited due to their high sensitivity to HPAIV H5N1 infection. Despite pronounced inherited differences in migratory status, the groups were generally indistinguishable in their susceptibility, survival time, clinical symptoms and viral shedding. Nevertheless, the migratory status partly influenced pathogenesis in the way of viral tropism.

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Influenza A Virus Infections in Land Birds, People’s Republic of China

Cited by 31 publications

References 13 publications

Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses—an Australian perspective

Identifying crucial gaps in our knowledge of the life-history of avian influenza viruses—an Australian perspective

Shedding and serologic responses following primary and secondary inoculation of house sparrows (Passer domesticus) and European starlings (Sturnus vulgaris) with low-pathogenicity avian influenza virus

Migratory Status Is Not Related to the Susceptibility to HPAIV H5N1 in an Insectivorous Passerine Species

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