Historical Prevalence and Distribution of Avian Influenza Virus A(H7N9) among Wild Birds

Olson, Sarah H.; Gilbert, Martin; Cheng, Ming; Mazet, Jonna A. K.; Joly, Damien O.

doi:10.3201/eid1912.130649

Cited by 12 publications

(10 citation statements)

References 8 publications

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“…Morbidity associated with H7N9 infection had not been previously reported in people, and little was known about this subtype in wild bird populations. To inform on the investigation and potential role of wild birds as sources of the human infections, the consortium examined the prevalence and distribution of influenza A (H7N9) virus previously reported in wild bird populations and the sample size needed to detect this strain in wild birds (Olson et al, 2013). The prevalence of H7N9 in wild birds was very low, requiring high sample sizes (>30,000 wild birds) for detection.…”

Section: Addressing Re-emerging Disease Threats Of Major Global Impormentioning

confidence: 99%

“…The prevalence of H7N9 in wild birds was very low, requiring high sample sizes (>30,000 wild birds) for detection. Given the low prevalence in wild birds, PREDICT and its partners recommended targeted risk-based surveillance as an efficient and cost-effective strategy to monitor wild bird populations as a potential source of continued H7N9 infections in poultry and people (Olson et al, 2013).…”

Section: Addressing Re-emerging Disease Threats Of Major Global Impormentioning

confidence: 99%

See 1 more Smart Citation

One Health proof of concept: Bringing a transdisciplinary approach to surveillance for zoonotic viruses at the human-wild animal interface

Kelly

Karesh

Johnson

et al. 2017

Preventive Veterinary Medicine

Self Cite

143

117

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As the world continues to react and respond inefficiently to emerging infectious diseases, such as Middle Eastern Respiratory Syndrome and the Ebola and Zika viruses, a growing transdisciplinary community has called for a more proactive and holistic approach to prevention and preparedness - One Health. Such an approach presents important opportunities to reduce the impact of disease emergence events and also to mitigate future emergence through improved cross-sectoral coordination. In an attempt to provide proof of concept of the utility of the One Health approach, the US Agency for International Development's PREDICT project consortium designed and implemented a targeted, risk-based surveillance strategy based not on humans as sentinels of disease but on detecting viruses early, at their source, where intervention strategies can be implemented before there is opportunity for spillover and spread in people or food animals. Here, we share One Health approaches used by consortium members to illustrate the potential for successful One Health outcomes that can be achieved through collaborative, transdisciplinary partnerships. PREDICT's collaboration with partners around the world on strengthening local capacity to detect hundreds of viruses in wild animals, coupled with a series of cutting-edge virological and analytical activities, have significantly improved our baseline knowledge on the zoonotic pool of viruses and the risk of exposure to people. Further testament to the success of the project's One Health approach and the work of its team of dedicated One Health professionals are the resulting 90 peer-reviewed, scientific publications in under 5 years that improve our understanding of zoonoses and the factors influencing their emergence. The findings are assisting in global health improvements, including surveillance science, diagnostic technologies, understanding of viral evolution, and ecological driver identification. Through its One Health leadership and multi-disciplinary partnerships, PREDICT has forged new networks of professionals from the human, animal, and environmental health sectors to promote global health, improving our understanding of viral disease spillover from wildlife and implementing strategies for preventing and controlling emerging disease threats.

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Section: Addressing Re-emerging Disease Threats Of Major Global Impormentioning

confidence: 99%

Section: Addressing Re-emerging Disease Threats Of Major Global Impormentioning

confidence: 99%

One Health proof of concept: Bringing a transdisciplinary approach to surveillance for zoonotic viruses at the human-wild animal interface

Kelly

Karesh

Johnson

et al. 2017

Preventive Veterinary Medicine

Self Cite

143

117

View full text Add to dashboard Cite

show abstract

“…It is important to mention that the genome of the H7N9 strain of AIV that infected humans in 2013, and that is currently circulating in China, had its origin in three different avian sources, which gave the new strain the molecular characteristics that allow transmission from person to person (39,40,41). Although none of the viruses from which the H7N9 strain originated has caused a significant outbreak or pandemic, the basic characteristics and current situation of the three avian viruses, the H7N9, and the H7N3 and the H2N6 that gave rise to the H7N9 influenza virus strain, need to be addressed.…”

Section: The Ongoing Story Of Ever-present Influenza: How Influenza Vmentioning

confidence: 99%

The role of animal reservoirs in social–environmental landscapes: remarks on the control of avian influenza and preparedness for pandemics

Ortiz-Rodriguez¹,

Ramírez-Nieto²,

Villamil-Jiménez³

2016

Rev. Sci. Tech. OIE

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Influenza viruses are well known for their ability to infect and cause disease in a broad range of hosts. Modern advances in reverse genetics have enabled scientists to probe the mutations that allow influenza viruses to perform host switching. Despite this detailed understanding of the molecular modifications that allow host switching and adaptation, there is a gap in knowledge regarding the factors external to the virus and their interactions that act as triggers leading to a pandemic. Studies on the ecology of zoonotic pathogens should be the new paradigm for understanding not only influenza viruses but any other infectious disease that can be a threat to animal and human health. The literature regarding influenza pandemics and influenza virus reservoirs was reviewed to analyse how social and economic changes can influence the appearance of new outbreaks of influenza. In addition, the importance of new research in a dynamic environment driven by the expansion of human territories and animal production systems is highlighted. A new paradigm is proposed for novel research approaches to infectious diseases such as influenza.

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“…4 Reports indicate minimal evolution and apparent signs of disease in almost all natural reservoirs, but the occurrence of accumulated mutations in the genome or in certain fragments might benefit cross-species transmission. [4][5][6][7] Influenza A viruses have the capacity to evolve rapidly and cause epidemics or even pandemics in domestic poultry, lower mammals, and humans. Avian influenza virus (AIV) transmission has been reported in several countries, with sporadic human infections owing to transfer of the virus from wild birds (e.g., migrating or wild aquatic birds) to domestic poultry.…”

Section: Introductionmentioning

confidence: 99%

Virus-induced pathogenesis, vaccine development, and diagnosis of novel H7N9 avian influenza A virus in humans: a systemic literature review

Mrc

et al. 2019

J Int Med Res

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H7N9 avian influenza virus (AIV) caused human infections in 2013 in China. Phylogenetic analyses indicate that H7N9 AIV is a novel reassortant strain with pandemic potential. We conducted a systemic review regarding virus-induced pathogenesis, vaccine development, and diagnosis of H7N9 AIV infection in humans. We followed PRISMA guidelines and searched PubMed, Web of Science, and Google Scholar to identify relevant articles published between January 2013 and December 2018. Pathogenesis data indicated that H7N9 AIV belongs to low pathogenic avian influenza, which is mostly asymptomatic in avian species; however, H7N9 induces high mortality in humans. Sporadic human infections have recently been reported, caused by highly pathogenic avian influenza viruses detected in poultry. H7N9 AIVs resistant to adamantine and oseltamivir cause severe human infection by rapidly inducing progressive acute community-acquired pneumonia, multiorgan dysfunction, and cytokine dysregulation; however, mechanisms via which the virus induces severe

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Historical Prevalence and Distribution of Avian Influenza Virus A(H7N9) among Wild Birds

Cited by 12 publications

References 8 publications

One Health proof of concept: Bringing a transdisciplinary approach to surveillance for zoonotic viruses at the human-wild animal interface

One Health proof of concept: Bringing a transdisciplinary approach to surveillance for zoonotic viruses at the human-wild animal interface

The role of animal reservoirs in social–environmental landscapes: remarks on the control of avian influenza and preparedness for pandemics

Virus-induced pathogenesis, vaccine development, and diagnosis of novel H7N9 avian influenza A virus in humans: a systemic literature review

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