A current review of avian influenza in pigeons and doves (Columbidae)

Abolnik, Célia

doi:10.1016/j.vetmic.2014.02.042

Cited by 54 publications

(51 citation statements)

References 73 publications

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“…The number of samples collected from doves in this study was limited and no isolates were obtained from the rRT-PCR positive samples. There is natural and experimental evidence that doves and pigeons are susceptible to infection with IAV, including the H7N9 subtype from Asia (1). Although their role in IAV transmission remains unclear, association with habitats where waterfowl species are abundant, such as wetlands, may increase the probability of exposure to IAV in terrestrial birds.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and Diversity of Low Pathogenicity Avian Influenza Viruses in Wild Birds in Guatemala, 2010–2013

et al. 2016

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Summary Waterfowl species are known to harbor the greatest diversity of low pathogenicity influenza A virus (LPAIV) subtypes and are recognized as their main natural reservoir. In Guatemala there is evidence of circulation of LPAIV in wild ducks, however the bird species contributing to viral diversity during the winter migration in Central America are unknown. In this study, samples obtained from 1,250 hunter-killed birds from 22 different species were collected on the Pacific coast of Guatemala during three winter migration seasons between 2010 and 2013. Prevalence of LPAIV detected by real-time reverse-transcriptase polymerase chain reaction was 38.2%, 23.5% and 24.7% in the 2010-11, 2011-12, and 2012-13 seasons respectively. The highest virus prevalence was detected in the northern shoveler (Anas clypeata), followed by the blue-winged teal (Anas discors). The majority of positive samples and viral isolates were obtained from the blue-winged teal. Analysis of LPAIV prevalence over time in this species indicated a decreasing trend in monthly prevalence within a migration season. Sixty-eight viruses were isolated and 9 HA and 7 NA subtypes were identified in 19 subtype combinations. In 2012-13, the most prevalent subtype was H14, a subtype identified for the first time in the western hemisphere in 2010. The results from this study represent the most detailed description available to date of LPAIV circulation in Central America.

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Section: Discussionmentioning

confidence: 99%

Prevalence and Diversity of Low Pathogenicity Avian Influenza Viruses in Wild Birds in Guatemala, 2010–2013

et al. 2016

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“…Numerous previous studies have examined the susceptibility of pigeons to different subtypes of avian influenza virus and the role of pigeons in the transmission of avian influenza virus (Panigrahy et al, 1996;Abolnik, 2014). Although several reports described the isolation of avian influenza virus from pigeons or the detection of different subtypes of influenza virus by RT-PCR (Gronesova et al, 2009;Mansour et al, 2014), the majority of the studies showed that pigeons are generally resistant to avian influenza virus replication and are not likely to be a major reservoir and transmission host for avian influenza virus (Liu et al, 2007;Kohls et al, 2011;Smietanka et al, 2011;Yamamoto et al, 2012;Teske et al, 2013;Kalthoff et al, 2014;PantinJackwood et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Two more recent studies have reported that pigeons are resistant to H7N9 infection, but virus was detected from oropharyngeal swabs at early time points after intranasal inoculation (Kalthoff et al, 2014;Pantin-Jackwood et al, 2014), suggesting low level of virus replication in pigeons. Abolnik reviewed many studies regarding the susceptibility of pigeons to avian influenza virus and concluded that minimal virus replication occurs in pigeons, but is not sufficient to transmit the virus to other susceptible hosts (Abolnik, 2014). Here, we used three different types of pigeon, two different doses of virus and two inoculation methods to further determine the susceptibility of pigeons and chickens to this novel H7N9 avian influenza virus.…”

Section: Introductionmentioning

confidence: 99%

Pigeons are resistant to experimental infection with H7N9 avian influenza virus

et al. 2015

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To determine the susceptibility of pigeons to the newly emerged avian influenza virus subtype H7N9, we experimentally infected three different types of pigeons (meat, town, and racing) with two different doses (2 × 10(4) or 2 × 10(5) EID50) of H7N9 avian influenza virus A/Chicken/China/2013 by either intranasal and intraocular inoculation (IN + IO) or intravenous injection (IV). In addition, the potential transmission of H7N9 to pigeons by direct close contact with experimentally infected pigeons and chickens was assessed. Results showed that none of the experimentally infected pigeons exhibited any clinical signs regardless of the infection route and dose. Of the 12 racing pigeons that were randomly selected and necropsied, none of them had any gross lesions. In agreement with this finding, virus was not isolated from all pigeons. No detectable H7-specific antibodies were found in any pigeon. In contrast, 11 of 31 chickens that were either directly infected with H7N9 by IN + IO inoculation or by contact with IN + IO-infected chickens had conjunctivitis. Virus was isolated from all 31 chickens and H7-specific antibodies were detected in these chickens. However, none of the IV-infected chickens or chickens in direct contact with IV-infected chickens had any clinical signs. No virus was isolated from these chickens and no H7-specific antibody was detected. Overall, we conclude that pigeons are less or not susceptible to the H7N9 virus at the doses used and are not likely to serve as a reservoir for the virus. However, the virus does cause conjunctivitis in chickens and can transmit to susceptible hosts by direct contact.

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“…One of 10 paired pigeon foot swabs was H7 positive on rRT-PCR, but none of the tissues tested positive. Free-flying wild birds may thus have aided in fomite transmission of the H7N7 infection between closely situated ostrich farms, but pigeons and doves on the farm are not expected to have been carriers and multipliers of the virus (2).…”

Section: Serological Detection Of Aiv Detection In Ostriches 2011-2014mentioning

confidence: 99%