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Conteddu K, English HM, Byrne AW, Amin B, Griffin LL, Kaur P, Morera-Pujol V, Murphy KJ, Salter-Townshend M, Smith AF, Ciuti S. A scoping review on bovine tuberculosis highlights the need for novel data streams and analytical approaches to curb zoonotic diseases. Vet Res 2024; 55:64. [PMID: 38773649 PMCID: PMC11110237 DOI: 10.1186/s13567-024-01314-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 03/20/2024] [Indexed: 05/24/2024] Open
Abstract
Zoonotic diseases represent a significant societal challenge in terms of their health and economic impacts. One Health approaches to managing zoonotic diseases are becoming more prevalent, but require novel thinking, tools and cross-disciplinary collaboration. Bovine tuberculosis (bTB) is one example of a costly One Health challenge with a complex epidemiology involving humans, domestic animals, wildlife and environmental factors, which require sophisticated collaborative approaches. We undertook a scoping review of multi-host bTB epidemiology to identify trends in species publication focus, methodologies, and One Health approaches. We aimed to identify knowledge gaps where novel research could provide insights to inform control policy, for bTB and other zoonoses. The review included 532 articles. We found different levels of research attention across episystems, with a significant proportion of the literature focusing on the badger-cattle-TB episystem, with far less attention given to tropical multi-host episystems. We found a limited number of studies focusing on management solutions and their efficacy, with very few studies looking at modelling exit strategies. Only a small number of studies looked at the effect of human disturbances on the spread of bTB involving wildlife hosts. Most of the studies we reviewed focused on the effect of badger vaccination and culling on bTB dynamics with few looking at how roads, human perturbations and habitat change may affect wildlife movement and disease spread. Finally, we observed a lack of studies considering the effect of weather variables on bTB spread, which is particularly relevant when studying zoonoses under climate change scenarios. Significant technological and methodological advances have been applied to bTB episystems, providing explicit insights into its spread and maintenance across populations. We identified a prominent bias towards certain species and locations. Generating more high-quality empirical data on wildlife host distribution and abundance, high-resolution individual behaviours and greater use of mathematical models and simulations are key areas for future research. Integrating data sources across disciplines, and a "virtuous cycle" of well-designed empirical data collection linked with mathematical and simulation modelling could provide additional gains for policy-makers and managers, enabling optimised bTB management with broader insights for other zoonoses.
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Affiliation(s)
- Kimberly Conteddu
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland.
| | - Holly M English
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Andrew W Byrne
- Department of Agriculture, Food and the Marine, One Health Scientific Support Unit, Dublin, Ireland
| | - Bawan Amin
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Laura L Griffin
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Prabhleen Kaur
- School of Mathematics and Statistics, University College Dublin, Dublin, Ireland
| | - Virginia Morera-Pujol
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Kilian J Murphy
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | | | - Adam F Smith
- Department of Wildlife Ecology and Management, Faculty of Environment and Natural Resources, University of Freiburg, Freiburg, Germany
- The Frankfurt Zoological Society, Frankfurt, Germany
- Department of National Park Monitoring and Animal Management, Bavarian Forest National Park, Grafenau, Germany
| | - Simone Ciuti
- Laboratory of Wildlife Ecology and Behaviour, School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
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Morris R, Wang S. Building a pathway to One Health surveillance and response in Asian countries. SCIENCE IN ONE HEALTH 2024; 3:100067. [PMID: 39077383 PMCID: PMC11262298 DOI: 10.1016/j.soh.2024.100067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/27/2024] [Indexed: 07/31/2024]
Abstract
To detect and respond to emerging diseases more effectively, an integrated surveillance strategy needs to be applied to both human and animal health. Current programs in Asian countries operate separately for the two sectors and are principally concerned with detection of events that represent a short-term disease threat. It is not realistic to either invest only in efforts to detect emerging diseases, or to rely solely on event-based surveillance. A comprehensive strategy is needed, concurrently investigating and managing endemic zoonoses, studying evolving diseases which change their character and importance due to influences such as demographic and climatic change, and enhancing understanding of factors which are likely to influence the emergence of new pathogens. This requires utilisation of additional investigation tools that have become available in recent years but are not yet being used to full effect. As yet there is no fully formed blueprint that can be applied in Asian countries. Hence a three-step pathway is proposed to move towards the goal of comprehensive One Health disease surveillance and response.
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Affiliation(s)
- Roger Morris
- Massey University EpiCentre and EpiSoft International Ltd, 76/100 Titoki Street, Masterton 5810, New Zealand
| | - Shiyong Wang
- Health, Nutrition and Population, World Bank Group, Washington, DC, USA
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Sánchez-Cano A, Camacho MC, Ramiro Y, Cardona-Cabrera T, Höfle U. Seasonal changes in bird communities on poultry farms and house sparrow-wild bird contacts revealed by camera trapping. Front Vet Sci 2024; 11:1369779. [PMID: 38444782 PMCID: PMC10912304 DOI: 10.3389/fvets.2024.1369779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 02/07/2024] [Indexed: 03/07/2024] Open
Abstract
Introduction Wild birds are considered reservoirs of poultry pathogens although transmission routes have not been conclusively established. Here we use camera trapping to study wild bird communities on commercial layer and red-legged partridge farms over a one-year timeframe. We also analyze direct and indirect interactions of other bird species with the house sparrow (Passer domesticus), a potential bridge host. Methods We conducted camera trapping events between January 2018 and October 2019, in two caged layer farms, one free-range layer farm, and two red-legged partridge farms in South-Central Spain. Results and Discussion We observed wild bird visits on all types of farms, with the significantly highest occurrence on red-legged partridge farms where food and water are more easily accessible, followed by commercial caged layer farms, and free-range chicken farms. The house sparrow (Passer domesticus) followed by spotless starlings (Sturnus unicolor) was the most encountered species on all farms, with the highest frequency in caged layer farms. On partridge farms, the house sparrow accounted for 58% of the wild bird detections, while on the free-range chicken farm, it made up 11% of the detections. Notably, the breeding season, when food and water are scarce in Mediterranean climates, saw the highest number of wild bird visits to the farms. Our findings confirm that the house sparrow, is in direct and indirect contact with layers and red-legged partridges and other wild birds independent of the type of farm. Contacts between house sparrows and other bird species were most frequent during the breeding season followed by the spring migration period. The species most frequently involved in interactions with the house sparrow belonged to the order Passeriformes. The study provides a comparative description of the composition and seasonal variations of bird communities in different types of layer/ poultry farms in Southern Spain i.e. a Mediterranean climate. It confirms the effectiveness of biosecurity measures that restrict access to feed and water. Additionally, it underscores the importance of synanthropic species, particularly the house sparrow, as potential bridge vector of avian pathogens.
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Affiliation(s)
- Alberto Sánchez-Cano
- SaBio Research Group, Institute for Game and Wildlife Research IREC (CSIC-UCLM-JCCM), Ciudad Real, Spain
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Sanogo IN, Guinat C, Dellicour S, Diakité MA, Niang M, Koita OA, Camus C, Ducatez M. Genetic insights of H9N2 avian influenza viruses circulating in Mali and phylogeographic patterns in Northern and Western Africa. Virus Evol 2024; 10:veae011. [PMID: 38435712 PMCID: PMC10908551 DOI: 10.1093/ve/veae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/18/2024] [Accepted: 02/13/2024] [Indexed: 03/05/2024] Open
Abstract
Avian influenza viruses (AIVs) of the H9N2 subtype have become widespread in Western Africa since their first detection in 2017 in Burkina Faso. However, the genetic characteristics and diffusion patterns of the H9N2 virus remain poorly understood in Western Africa, mainly due to limited surveillance activities. In addition, Mali, a country considered to play an important role in the epidemiology of AIVs in the region, lacks more comprehensive data on the genetic characteristics of these viruses, especially the H9N2 subtype. To better understand the genetic characteristics and spatio-temporal dynamics of H9N2 virus within this region, we carried out a comprehensive genetic characterization of H9N2 viruses collected through active surveillance in live bird markets in Mali between 2021 and 2022. We also performed a continuous phylogeographic analysis to unravel the dispersal history of H9N2 lineages between Northern and Western Africa. The identified Malian H9N2 virus belonged to the G1 lineage, similar to viruses circulating in both Western and Northern Africa, and possessed multiple molecular markers associated with an increased potential for zoonotic transmission and virulence. Notably, some Malian strains carried the R-S-N-R motif at their cleavage site, mainly observed in H9N2 strains in Asia. Our continuous phylogeographic analysis revealed a single and significant long-distance lineage dispersal event of the H9N2 virus to Western Africa, likely to have originated from Morocco in 2015, shaping the westward diffusion of the H9N2 virus. Our study highlights the need for long-term surveillance of H9N2 viruses in poultry populations in Western Africa, which is crucial for a better understanding of virus evolution and effective management against potential zoonotic AIV strain emergence.
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Affiliation(s)
- Idrissa Nonmon Sanogo
- Interactions Hôtes-Agents Pathogènes (IHAP), UMR 1225, Université de Toulouse, INRAE, ENVT, Toulouse 31076, France
- Faculté d’Agronomie et de Médecine Animale (FAMA), Université de Ségou, Ségou BP 24, Mali
| | - Claire Guinat
- Interactions Hôtes-Agents Pathogènes (IHAP), UMR 1225, Université de Toulouse, INRAE, ENVT, Toulouse 31076, France
| | - Simon Dellicour
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, Brussels B-1050, Belgium
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory for Clinical and Epidemiological Virology, KU Leuven, Leuven BE-3000, Belgium
| | - Mohamed Adama Diakité
- Service diagnostic et recherche Laboratoire Central Vétérinaire, Bamako BP 2295, Mali
| | - Mamadou Niang
- Food and Agriculture Organization of the United Nations (FAO-UN), Emergency Centre for Transboundary Animal Diseases (ECTAD), Regional Office for Africa (RAF), Accra BP 1628, Ghana
| | - Ousmane A Koita
- Laboratoire de Biologie Moléculaire Appliquée, Faculté des Sciences et Techniques (FAST), University of Sciences, Techniques and Technologies of Bamako (USTTB), Mali Université de Bamako, Bamako E 3206, Mali
| | - Christelle Camus
- Interactions Hôtes-Agents Pathogènes (IHAP), UMR 1225, Université de Toulouse, INRAE, ENVT, Toulouse 31076, France
| | - Mariette Ducatez
- Interactions Hôtes-Agents Pathogènes (IHAP), UMR 1225, Université de Toulouse, INRAE, ENVT, Toulouse 31076, France
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Martelli L, Fornasiero D, Scarton F, Spada A, Scolamacchia F, Manca G, Mulatti P. Study of the Interface between Wild Bird Populations and Poultry and Their Potential Role in the Spread of Avian Influenza. Microorganisms 2023; 11:2601. [PMID: 37894259 PMCID: PMC10609042 DOI: 10.3390/microorganisms11102601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Water birds play a crucial role in disseminating and amplifying avian influenza viruses (AIVs) in the environment. However, they may have limited interactions with domestic facilities, raising the hypothesis that other wild birds may play the bridging role in introducing AIVs into poultry. An ornithocoenosis study, based on census-transect and camera-trapping methods, was conducted in 2019 in ten poultry premises in northeast Italy to characterize the bird communities and envisage the species that might act as bridge hosts for AIVs. The data collected were explored through a series of multivariate analyses (correspondence analysis and non-metric multidimensional scaling), and biodiversity indices (observed and estimated richness, Shannon entropy and Pielou's evenness). The analyses revealed a high level of complexity in the ornithic population, with 147 censused species, and significant qualitative and quantitative differences in wild bird species composition, both in space and in time. Among these, only a few were observed in close proximity to the farm premises (i.e., Magpies, Blackbirds, Cattle Egrets, Pheasants, Eurasian Collared Doves, and Wood Pigeons), thus suggesting their potential role in spilling over AIVs to poultry; contrarily, waterfowls appeared to be scarcely inclined to close visits, especially during autumn and winter seasons. These findings stress the importance of ongoing research on the wild-domestic bird interface, advocating for a wider range of species to be considered in AIVs surveillance and prevention programs.
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Affiliation(s)
- Luca Martelli
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (L.M.); (F.S.); (G.M.)
| | - Diletta Fornasiero
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (L.M.); (F.S.); (G.M.)
| | | | - Arianna Spada
- SELC Soc. Coop., 30175 Venice, Italy; (F.S.); (A.S.)
| | - Francesca Scolamacchia
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (L.M.); (F.S.); (G.M.)
| | - Grazia Manca
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (L.M.); (F.S.); (G.M.)
| | - Paolo Mulatti
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (L.M.); (F.S.); (G.M.)
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Teitelbaum CS, Masto NM, Sullivan JD, Keever AC, Poulson RL, Carter DL, Blake-Bradshaw AG, Highway CJ, Feddersen JC, Hagy HM, Gerhold RW, Cohen BS, Prosser DJ. North American wintering mallards infected with highly pathogenic avian influenza show few signs of altered local or migratory movements. Sci Rep 2023; 13:14473. [PMID: 37660131 PMCID: PMC10475108 DOI: 10.1038/s41598-023-40921-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 08/18/2023] [Indexed: 09/04/2023] Open
Abstract
Avian influenza viruses pose a threat to wildlife and livestock health. The emergence of highly pathogenic avian influenza (HPAI) in wild birds and poultry in North America in late 2021 was the first such outbreak since 2015 and the largest outbreak in North America to date. Despite its prominence and economic impacts, we know relatively little about how HPAI spreads in wild bird populations. In January 2022, we captured 43 mallards (Anas platyrhynchos) in Tennessee, USA, 11 of which were actively infected with HPAI. These were the first confirmed detections of HPAI H5N1 clade 2.3.4.4b in the Mississippi Flyway. We compared movement patterns of infected and uninfected birds and found no clear differences; infected birds moved just as much during winter, migrated slightly earlier, and migrated similar distances as uninfected birds. Infected mallards also contacted and shared space with uninfected birds while on their wintering grounds, suggesting ongoing transmission of the virus. We found no differences in body condition or survival rates between infected and uninfected birds. Together, these results show that HPAI H5N1 clade 2.3.4.4b infection was unrelated to body condition or movement behavior in mallards infected at this location during winter; if these results are confirmed in other seasons and as HPAI H5N1 continues to evolve, they suggest that these birds could contribute to the maintenance and dispersal of HPAI in North America. Further research on more species across larger geographic areas and multiple seasons would help clarify potential impacts of HPAI on waterfowl and how this emerging disease spreads at continental scales, across species, and potentially between wildlife and domestic animals.
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Affiliation(s)
- Claire S Teitelbaum
- Akima Systems Engineering, Herndon, VA, USA.
- Contractor to U.S. Geological Survey, Eastern Ecological Science Center, Laurel, MD, USA.
- Bay Area Environmental Research Institute and NASA Ames Research Center, Moffett Field, CA, USA.
| | - Nicholas M Masto
- College of Arts and Sciences, Tennessee Technological University, Cookeville, TN, USA
| | - Jeffery D Sullivan
- U.S. Geological Survey, Eastern Ecological Science Center, Laurel, MD, USA
| | - Allison C Keever
- College of Arts and Sciences, Tennessee Technological University, Cookeville, TN, USA
| | - Rebecca L Poulson
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Deborah L Carter
- Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | | | - Cory J Highway
- College of Arts and Sciences, Tennessee Technological University, Cookeville, TN, USA
| | | | - Heath M Hagy
- U.S. Fish and Wildlife Service, National Wildlife Refuge System, Stanton, TN, USA
| | - Richard W Gerhold
- University of Tennessee College of Veterinary Medicine, Knoxville, TN, USA
| | - Bradley S Cohen
- College of Arts and Sciences, Tennessee Technological University, Cookeville, TN, USA
| | - Diann J Prosser
- U.S. Geological Survey, Eastern Ecological Science Center, Laurel, MD, USA
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High pathogenicity avian influenza: targeted active surveillance of wild birds to enable early detection of emerging disease threats. Epidemiol Infect 2022; 151:e15. [PMID: 36502812 PMCID: PMC9990394 DOI: 10.1017/s0950268822001856] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Avian influenza (AI) is an important disease that has significant implications for animal and human health. High pathogenicity AI (HPAI) has emerged in consecutive seasons within the UK to cause the largest outbreaks recorded. Statutory measures to control outbreaks of AI virus (AIV) at poultry farms involve disposal of all birds on infected premises. Understanding of the timing of incursions into the UK could facilitate decisions on improved responses. During the autumnal migration and wintering period (autumn 2019- spring 2020), three active sampling approaches were trialled for wild bird species considered likely to be involved in captive AI outbreaks with retrospective laboratory testing undertaken to define the presence of AIV.Faecal sampling of birds (n = 594) caught during routine and responsive mist net sampling failed to detect AIV. Cloacal sampling of hunter-harvested waterfowl (n = 146) detected seven positive samples from three species with the earliest detection on the 17 October 2020. Statutory sampling first detected AIV in wild and captive birds on 3 November 2020. We conclude that hunter sourced sampling of waterfowl presents an opportunity to detect AI within the UK in advance of outbreaks on poultry farms and allow for early intervention measures to protect the national poultry flock.
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McDuie F, Matchett EL, Prosser DJ, Takekawa JY, Pitesky ME, Lorenz AA, McCuen MM, T OC, Ackerman JT, De La Cruz SEW, Casazza ML. Pathways for avian influenza virus spread: GPS reveals wild waterfowl in commercial livestock facilities and connectivity with the natural wetland landscape. Transbound Emerg Dis 2022; 69:2898-2912. [PMID: 34974641 PMCID: PMC9788224 DOI: 10.1111/tbed.14445] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 12/30/2022]
Abstract
Zoonotic diseases are of considerable concern to the human population and viruses such as avian influenza (AIV) threaten food security, wildlife conservation and human health. Wild waterfowl and the natural wetlands they use are known AIV reservoirs, with birds capable of virus transmission to domestic poultry populations. While infection risk models have linked migration routes and AIV outbreaks, there is a limited understanding of wild waterfowl presence on commercial livestock facilities, and movement patterns linked to natural wetlands. We documented 11 wild waterfowl (three Anatidae species) in or near eight commercial livestock facilities in Washington and California with GPS telemetry data. Wild ducks used dairy and beef cattle feed lots and facility retention ponds during both day and night suggesting use for roosting and foraging. Two individuals (single locations) were observed inside poultry facility boundaries while using nearby wetlands. Ducks demonstrated high site fidelity, returning to the same areas of habitats (at livestock facilities and nearby wetlands), across months or years, showed strong connectivity with surrounding wetlands, and arrived from wetlands up to 1251 km away in the week prior. Telemetry data provides substantial advantages over observational data, allowing assessment of individual movement behaviour and wetland connectivity that has significant implications for outbreak management. Telemetry improves our understanding of risk factors for waterfowl-livestock virus transmission and helps identify factors associated with coincident space use at the wild waterfowl-domestic livestock interface. Our research suggests that even relatively small or isolated natural and artificial water or food sources in/near facilities increases the likelihood of attracting waterfowl, which has important consequences for managers attempting to minimize or prevent AIV outbreaks. Use and interpretation of telemetry data, especially in near-real-time, could provide key information for reducing virus transmission risk between waterfowl and livestock, improving protective barriers between wild and domestic species, and abating outbreaks.
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Affiliation(s)
- Fiona McDuie
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA,San Jose State University Research FoundationMoss Landing Marine LaboratoriesCaliforniaUSA
| | - Elliott L Matchett
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA
| | - Diann J Prosser
- U.S. Geological Survey, Eastern Ecological Science Center at the Patuxent Research Refuge (formerly USGS Patuxent Wildlife Research Center)LaurelMarylandUSA
| | - John Y Takekawa
- Suisun Resource Conservation District, Suisun Marsh ProgramWest SacramentoCaliforniaUSA
| | - Maurice E Pitesky
- University of California Davis, School of Veterinary Medicine, Poultry Health and Food Safety Epidemiology, One Shields AvenueDavisCaliforniaUSA
| | - Austen A Lorenz
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA
| | - Madeline M McCuen
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA
| | - Overton Cory T
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA
| | - Joshua T Ackerman
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA
| | - Susan E. W. De La Cruz
- U.S. Geological Survey Western Ecological Research Center, San Francisco Bay Estuary Field StationMoffett FieldCaliforniaUSA
| | - Michael L Casazza
- U.S. Geological Survey, Western Ecological Research Center, Dixon Field StationSuite D DixonCaliforniaUSA
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Graziosi G, Mescolini G, Silveira F, Lupini C, Tucciarone CM, Franzo G, Cecchinato M, Legnardi M, Gobbo F, Terregino C, Catelli E. First detection of Avian metapneumovirus subtype C Eurasian Lineage in a Eurasian wigeon ( Mareca penelope) wintering in Northeastern Italy: an additional hint on the role of migrating birds in the viral epidemiology. Avian Pathol 2022; 51:283-290. [PMID: 35261311 DOI: 10.1080/03079457.2022.2051429] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Avian metapneumovirus (aMPV) economically affects the global poultry industry causing respiratory and reproductive disorders. Considering the paucity of data on the aMPV occurrence in European free-ranging avifauna, a molecular survey was conducted on wild birds of 23 species belonging to the orders Anseriformes, Charadriiformes or Passeriformes, captured alive and sampled in Northeast Italy as part of the national Avian influenza virus (AIV) surveillance activities. A total of 492 oropharyngeal swabs, collected from 2007 to 2010, all AIV negative, were screened from aMPV by subtype-specific qRT-PCR. An aMPV-C strain, named aMPV/C/IT/Wigeon/758/07, was found in a wintering young Eurasian wigeon (Mareca penelope) sampled in November 2007. The matrix, fusion, and attachment glycoprotein genes of the detected strain were subsequently amplified by specific independent RT-PCRs, then sequenced, and compared in a phylogenetic framework with known aMPV homologous sequences retrieved from GenBank. Close genetic relationships were found between the aMPV/C/IT/Wigeon/758/07 strain and subtype C Eurasian lineage strains isolated in the late 1990s in French domestic ducks, suggesting epidemiological links. Eurasian wigeons are indeed medium to long-range migrant dabbling ducks that move along the Black Sea/Mediterranean flyway, our finding might therefore be related to migratory bridges between countries. To our knowledge, this is the first molecular evidence of the occurrence of a subtype C in Italy and backdates the aMPV-C circulation to 2007. Moreover, results suggest the susceptibility of Eurasian wigeons to aMPV. Broader investigations are needed to assess the role of wild ducks and the significance of the wildfowl/poultry interface in the aMPV-C epidemiology.
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Affiliation(s)
- Giulia Graziosi
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Ozzano dell'Emilia, BO, Italy
| | - Giulia Mescolini
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Ozzano dell'Emilia, BO, Italy
| | - Flavio Silveira
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Ozzano dell'Emilia, BO, Italy
| | - Caterina Lupini
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Ozzano dell'Emilia, BO, Italy
| | - Claudia M Tucciarone
- Department of Animal Medicine, Production and Health, University of Padua, 35020 Legnaro, PD, Italy
| | - Giovanni Franzo
- Department of Animal Medicine, Production and Health, University of Padua, 35020 Legnaro, PD, Italy
| | - Mattia Cecchinato
- Department of Animal Medicine, Production and Health, University of Padua, 35020 Legnaro, PD, Italy
| | - Matteo Legnardi
- Department of Animal Medicine, Production and Health, University of Padua, 35020 Legnaro, PD, Italy
| | - Federica Gobbo
- Comparative Biomedical Sciences Division, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, PD, Italy
| | - Calogero Terregino
- Comparative Biomedical Sciences Division, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, PD, Italy
| | - Elena Catelli
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Ozzano dell'Emilia, BO, Italy
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Yoo DS, Kang SI, Lee YN, Lee EK, Kim WY, Lee YJ. Bridging the Local Persistence and Long-Range Dispersal of Highly Pathogenic Avian Influenza Virus (HPAIv): A Case Study of HPAIv-Infected Sedentary and Migratory Wildfowls Inhabiting Infected Premises. Viruses 2022; 14:v14010116. [PMID: 35062320 PMCID: PMC8780574 DOI: 10.3390/v14010116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/02/2022] [Accepted: 01/07/2022] [Indexed: 12/14/2022] Open
Abstract
The past two decades have seen the emergence of highly pathogenic avian influenza (HPAI) infections that are characterized as extremely contagious, with a high fatality rate in chickens, and humans; this has sparked considerable concerns for global health. Generally, the new variant of the HPAI virus crossed into various countries through wild bird migration, and persisted in the local environment through the interactions between wild and farmed birds. Nevertheless, no studies have found informative cases associated with connecting local persistence and long-range dispersal. During the 2016–2017 HPAI H5N6 epidemic in South Korea, we observed several waterfowls with avian influenza infection under telemetric monitoring. Based on the telemetry records and surveillance data, we conducted a case study to test hypotheses related to the transmission pathway between wild birds and poultry. One sedentary wildfowl naturally infected with HPAI H5N6, which overlapped with the home range of one migratory bird with H5-specific antibody-positive, showed itself to be phylogenetically close to the isolates from a chicken farm located within its habitat. Our study is the first observational study that provides scientific evidence supporting the hypothesis that the HPAI spillover into poultry farms is caused by local persistence in sedentary birds, in addition to its long-range dispersal by sympatric migratory birds.
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Affiliation(s)
- Dae-sung Yoo
- Animal and Plant Quarantine Agency, Gimcheon 39660, Korea;
| | - Sung-Il Kang
- Avian Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea;
| | - Yu-Na Lee
- Avian Influenza Research and Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea; (Y.-N.L.); (E.-K.L.)
| | - Eun-Kyoung Lee
- Avian Influenza Research and Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea; (Y.-N.L.); (E.-K.L.)
| | - Woo-yuel Kim
- Honam National Institute of Biological Resources, Mokpo 58762, Korea;
| | - Youn-Jeong Lee
- Avian Influenza Research and Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Korea; (Y.-N.L.); (E.-K.L.)
- Correspondence:
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11
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Yoo DS, Lee K, Beatriz ML, Chun BC, Belkhiria J, Lee KN. Spatiotemporal risk assessment for avian influenza outbreak based on the dynamics of habitat suitability for wild birds. Transbound Emerg Dis 2021; 69:e953-e967. [PMID: 34738338 DOI: 10.1111/tbed.14376] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022]
Abstract
Highly pathogenic avian influenza (HPAI) has predominantly damaged the poultry industry worldwide. The fundamental prevention and control strategy for HPAI includes early detection and timely intervention enforcement through a systematic surveillance system for wild birds based on the ecological understanding of the dynamics of wild birds' movements. Our study aimed to develop a spatiotemporal risk assessment model for avian influenza (AI) infection in wild birds to empower surveillance information for a contingency strategy. For this purpose, first, we predicted the monthly habitat suitability of seven waterfowl species, using 227,671 Global Positioning System (GPS) tracking records of 562 birds from 2014 to 2018 in the Republic of Korea (ROK). Then, that predicted habitat suitability and 421 coordinates of AI detection sites in wild birds were used to build the risk assessment model. Subsequently, we compared the monthly predicted risk of avian influenza virus (AIv) identification in wild birds between case and non-case poultry farms with HPAI H5N6 outbreak in the ROK between 2016 and 2017. The results reported considerable variation of monthly habitat suitability of seven waterfowls and the impact of predicting AI occurrences in wild birds. The high habitat suitability for spot-billed ducks (contribution rate in November = 40.9%) and mallards (contribution rate in January = 34.3%) significantly contributed to predicting the average risk of AIv identification in wild birds, with high predictive performance [the monthly mean of area under the curve (AUC) = 0.978]. Moreover, our model showed that the averaged risk of identification AI in wild birds was significantly higher in HPAI infected premises, with infected domestic duck holdings exhibiting a significantly higher risk than the chicken farms in November. This study suggests that animal health authority establishes a risk-based HPAI surveillance system grounded on the ecological nature of wild birds to improve the effectiveness of prevention and preparedness of emerging epidemics.
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Affiliation(s)
- Dae-Sung Yoo
- Department of Public Health, Graduate School, Korea University, Seoul, Republic of Korea
| | - Kyuyoung Lee
- Center for Animal Disease Modeling and Surveillance (CADMS), Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Martínez López Beatriz
- Center for Animal Disease Modeling and Surveillance (CADMS), Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Byung Chul Chun
- Department of Public Health, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jaber Belkhiria
- One Health Institute, School of Veterinary Medicine, University of California, Davis, California, USA
| | - Kwang-Nyeong Lee
- Department of Public Health, Graduate School, Korea University, Seoul, Republic of Korea
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12
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Analyzing Spatial Dependency of the 2016-2017 Korean HPAI Outbreak to Determine the Effective Culling Radius. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18189643. [PMID: 34574568 PMCID: PMC8470851 DOI: 10.3390/ijerph18189643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022]
Abstract
Highly pathogenic avian influenza (HPAI) outbreaks are a threat to human health and cause extremely large financial losses to the poultry industry due to containment measures. Determining the most effective control measures, especially the culling radius, to minimize economic impacts yet contain the spread of HPAI is of great importance. This study examines the factors influencing the probability of a farm being infected with HPAI during the 2016-2017 HPAI outbreak in Korea. Using a spatial random effects logistic model, only a few factors commonly associated with a higher risk of HPAI infection were significant. Interestingly, most density-related factors, poultry and farm, were not significantly associated with a higher risk of HPAI infection. The effective culling radius was determined to be two ranges: 0.5-2.2 km and 2.7-3.0 km. This suggests that the spatial heterogeneity, due to local characteristics and/or the characteristics of the HPAI virus(es) involved, should be considered to determine the most effective culling radius in each region. These findings will help strengthen biosecurity control measures at the farm level and enable authorities to quickly respond to HPAI outbreaks with effective countermeasures to suppress the spread of HPAI.
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13
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Humphreys JM, Douglas DC, Ramey AM, Mullinax JM, Soos C, Link P, Walther P, Prosser DJ. The spatial–temporal relationship of blue‐winged teal to domestic poultry: Movement state modelling of a highly mobile avian influenza host. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.13963] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- John M. Humphreys
- Agricultural Research Service U.S. Department of Agriculture Sidney MT USA
- Eastern Ecological Science Center at the Patuxent Research RefugeU.S. Geological Survey Laurel MD USA
| | | | - Andrew M. Ramey
- Alaska Science Center U.S. Geological Survey Anchorage AK USA
| | | | - Catherine Soos
- Ecotoxicology and Wildlife Health Division Environment and Climate Change Canada, Saskatoon Saskatchewan CA USA
| | - Paul Link
- Louisiana Department of Wildlife and Fisheries Baton Rouge LA USA
| | - Patrick Walther
- Texas Chenier Plain Refuge Complex U.S. Fish and Wildlife Service Anahuac TX USA
| | - Diann J. Prosser
- Eastern Ecological Science Center at the Patuxent Research RefugeU.S. Geological Survey Laurel MD USA
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14
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Verble K, Hallerman EM, Alexander KA. Urban landscapes increase dispersal, gene flow, and pathogen transmission potential in banded mongoose ( Mungos mungo) in northern Botswana. Ecol Evol 2021; 11:9227-9240. [PMID: 34306619 PMCID: PMC8293740 DOI: 10.1002/ece3.7487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 06/01/2020] [Accepted: 06/04/2020] [Indexed: 11/09/2022] Open
Abstract
Disease transmission can be strongly influenced by the manner in which conspecifics are connected across a landscape and the effects of land use upon these dynamics. In northern Botswana, the territorial and group-living banded mongoose (Mungos mungo) lives across urban and natural landscapes and is infected with a novel Mycobacterium tuberculosis complex pathogen, M. mungi. Using microsatellite markers amplified from DNA derived from banded mongoose fecal and tissue samples (n = 168), we evaluated population genetic structure, individual dispersal, and gene flow for 12 troops. Genetic structure was detectable and moderately strong across groups (F ST = 0.086), with K = 7 being the best-supported number of genetic clusters. Indications of admixture in certain troops suggest formation of new groups through recent fusion events. Differentiation was higher for troops inhabiting natural areas (F ST = 0.102) than for troops in urban landscapes (F ST = 0.081). While this suggests increased levels of gene flow between urban-dwelling troops, the inclusion of a smaller number of study troops from natural land types may have influenced these findings. Of those individuals confirmed infected with M. mungi, the majority (73%, n = 11) were assigned to their natal group which is consistent with previous observations linking lower levels of dispersal with infection. Twenty-one probable dispersing individuals were identified, with all suspected migrants originating from troops within the urban landscape. Findings suggest that urbanized landscapes may increase gene flow and dispersal behavior with a concomitant increase in the risk of pathogen spread. As urban landscapes expand, there is an increasing need to understand how land use and pathogen infection may change wildlife behavior and disease transmission potential.
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Affiliation(s)
- Kelton Verble
- Department of Fish and Wildlife ConservationVirginia TechBlacksburgVAUSA
- Present address:
Department of Biological SciencesUniversity of AlabamaTuscaloosaALUSA
| | - Eric M. Hallerman
- Department of Fish and Wildlife ConservationVirginia TechBlacksburgVAUSA
| | - Kathleen A. Alexander
- Department of Fish and Wildlife ConservationVirginia TechBlacksburgVAUSA
- Chobe Research InstituteCARACALKasaneBotswana
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15
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Abrahms B, Aikens EO, Armstrong JB, Deacy WW, Kauffman MJ, Merkle JA. Emerging Perspectives on Resource Tracking and Animal Movement Ecology. Trends Ecol Evol 2021; 36:308-320. [DOI: 10.1016/j.tree.2020.10.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/14/2020] [Accepted: 10/23/2020] [Indexed: 12/26/2022]
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16
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Correia-Gomes C, Henry MK, Reeves A, Sparks N. Management and biosecurity practices by small to medium egg producers in Scotland. Br Poult Sci 2021; 62:499-508. [PMID: 33611987 DOI: 10.1080/00071668.2021.1894635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. Information about procedures and biosecurity practices used by small and medium egg producers (SMEPs) is scarce. Anecdotal evidence suggests that biosecurity in such enterprises may be poor, as personnel and equipment move freely between sites and this may be compounded by personnel working on commercial units who keep their own poultry.2. To fill this knowledge gap, a questionnaire was designed and implemented targeting SMEPs in Scotland. Small enterprises were defined as egg producers that have ≥50 laying hens but <350 laying hens; while medium enterprises were defined as egg producers that have ≥350 laying hens but ≤32 000 laying hens. The questionnaire consisted of a total of 56 questions divided into multiple sections, covering the characteristics of the primary keeper, location of the enterprise and size of the flocks, husbandry, marketing of products and health/biosecurity.3. The questionnaire was posted to 375 holdings at the beginning of March 2017 and the survey remained open until the end of May 2017. In total 90 questionnaires were received by the cut-off date of which 76 questionnaires were from SMEPs. Forty were small enterprises and 36 were medium enterprises. For three questionnaires, it was not possible to identify the enterprise type.4. Differences were observed between SMEPs in terms of reported biosecurity and management practices, with medium enterprises reporting the adoption of more biosecurity measures than small enterprises. Furthermore, SMEPs behave differently from backyard poultry keepers and large commercial companies in terms of disease risk.5. In conclusion, it is important to ensure that SMEPs are considered in contingency plans and disease control programmes and that engagement with them is promoted so that the uptake of relevant information, such as awareness of disease control programmes, is optimised.
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Affiliation(s)
- C Correia-Gomes
- Epidemiology Research Unit, Department of Veterinary and Animal Science, Scotland's Rural College (SRUC), Inverness, Scotland
| | - M K Henry
- Epidemiology Research Unit, Department of Veterinary and Animal Science, Scotland's Rural College (SRUC), Inverness, Scotland
| | - A Reeves
- Epidemiology Research Unit, Department of Veterinary and Animal Science, Scotland's Rural College (SRUC), Inverness, Scotland
| | - N Sparks
- South and West, Scotland's Rural College (SRUC), Parkgate Dumfries, Scotland
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17
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Highly Pathogenic Avian Influenza Viruses at the Wild-Domestic Bird Interface in Europe: Future Directions for Research and Surveillance. Viruses 2021; 13:v13020212. [PMID: 33573231 PMCID: PMC7912471 DOI: 10.3390/v13020212] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 02/07/2023] Open
Abstract
Highly pathogenic avian influenza (HPAI) outbreaks in wild birds and poultry are no longer a rare phenomenon in Europe. In the past 15 years, HPAI outbreaks—in particular those caused by H5 viruses derived from the A/Goose/Guangdong/1/1996 lineage that emerged in southeast Asia in 1996—have been occuring with increasing frequency in Europe. Between 2005 and 2020, at least ten HPAI H5 incursions were identified in Europe resulting in mass mortalities among poultry and wild birds. Until 2009, the HPAI H5 virus outbreaks in Europe were caused by HPAI H5N1 clade 2.2 viruses, while from 2014 onwards HPAI H5 clade 2.3.4.4 viruses dominated outbreaks, with abundant genetic reassortments yielding subtypes H5N1, H5N2, H5N3, H5N4, H5N5, H5N6 and H5N8. The majority of HPAI H5 virus detections in wild and domestic birds within Europe coincide with southwest/westward fall migration and large local waterbird aggregations during wintering. In this review we provide an overview of HPAI H5 virus epidemiology, ecology and evolution at the interface between poultry and wild birds based on 15 years of avian influenza virus surveillance in Europe, and assess future directions for HPAI virus research and surveillance, including the integration of whole genome sequencing, host identification and avian ecology into risk-based surveillance and analyses.
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18
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Yousefinaghani S, Dara R, Poljak Z, Song F, Sharif S. A framework for the risk prediction of avian influenza occurrence: An Indonesian case study. PLoS One 2021; 16:e0245116. [PMID: 33449934 PMCID: PMC7810353 DOI: 10.1371/journal.pone.0245116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 12/23/2020] [Indexed: 12/21/2022] Open
Abstract
Avian influenza viruses can cause economically devastating diseases in poultry and have the potential for zoonotic transmission. To mitigate the consequences of avian influenza, disease prediction systems have become increasingly important. In this study, we have proposed a framework for the prediction of the occurrence and spread of avian influenza events in a geographical area. The application of the proposed framework was examined in an Indonesian case study. An extensive list of historical data sources containing disease predictors and target variables was used to build spatiotemporal and transactional datasets. To combine disparate sources, data rows were scaled to a temporal scale of 1-week and a spatial scale of 1-degree × 1-degree cells. Given the constructed datasets, underlying patterns in the form of rules explaining the risk of occurrence and spread of avian influenza were discovered. The created rules were combined and ordered based on their importance and then stored in a knowledge base. The results suggested that the proposed framework could act as a tool to gain a broad understanding of the drivers of avian influenza epidemics and may facilitate the prediction of future disease events.
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Affiliation(s)
| | - Rozita Dara
- School of Computer Science, University of Guelph, Guelph, Ontario, Canada
- * E-mail:
| | - Zvonimir Poljak
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Fei Song
- School of Computer Science, University of Guelph, Guelph, Ontario, Canada
| | - Shayan Sharif
- Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada
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Lee K, Yu D, Martínez-López B, Yoon H, Kang SI, Hong SK, Lee I, Kang Y, Jeong W, Lee E. Fine-scale tracking of wild waterfowl and their impact on highly pathogenic avian influenza outbreaks in the Republic of Korea, 2014-2015. Sci Rep 2020; 10:18631. [PMID: 33122803 PMCID: PMC7596240 DOI: 10.1038/s41598-020-75698-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 10/16/2020] [Indexed: 12/13/2022] Open
Abstract
Wild migratory waterfowl are considered one of the most important reservoirs and long-distance carriers of highly pathogenic avian influenza (HPAI). Our study aimed to explore the spatial and temporal characteristics of wild migratory waterfowl’s wintering habitat in the Republic of Korea (ROK) and to evaluate the impact of these habitats on the risk of HPAI outbreaks in commercial poultry farms. The habitat use of 344 wild migratory waterfowl over four migration cycles was estimated based on tracking records. The association of habitat use with HPAI H5N8 outbreaks in poultry farms was evaluated using a multilevel logistic regression model. We found that a poultry farm within a wild waterfowl habitat had a 3–8 times higher risk of HPAI outbreak than poultry farms located outside of the habitat. The range of wild waterfowl habitats increased during autumn migration, and was associated with the epidemic peak of HPAI outbreaks on domestic poultry farms in the ROK. Our findings provide a better understanding of the dynamics of HPAI infection in the wildlife–domestic poultry interface and may help to establish early detection, and cost-effective preventive measures.
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Affiliation(s)
- Kyuyoung Lee
- Center for Animal Disease Modeling and Surveillance (CADMS), Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Daesung Yu
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea.
| | - Beatriz Martínez-López
- Center for Animal Disease Modeling and Surveillance (CADMS), Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Hachung Yoon
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
| | - Sung-Il Kang
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
| | - Seong-Keun Hong
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
| | - Ilseob Lee
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
| | - Yongmyung Kang
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
| | - Wooseg Jeong
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
| | - Eunesub Lee
- Veterinary Epidemiology Division, Animal and Plant Quarantine Agency (QIA), Gimcheon, Republic of Korea
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20
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Tang L, Tang W, Li X, Hu C, Wu D, Wang T, He G. Avian Influenza Virus Prevalence and Subtype Diversity in Wild Birds in Shanghai, China, 2016-2018. Viruses 2020; 12:v12091031. [PMID: 32948009 PMCID: PMC7551665 DOI: 10.3390/v12091031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/07/2020] [Accepted: 09/14/2020] [Indexed: 01/21/2023] Open
Abstract
From 2016 to 2018, surveillance of influenza A viruses in wild birds was conducted in Shanghai, located at the East Asian-Australian flyway, China. A total of 5112 samples from 51 species of wild birds were collected from three different wetlands. The total three-year prevalence of influenza A viruses among them was 8.8%, as assessed using real-time polymerase chain reaction (PCR) methods, and the total prevalence was higher in Anseriformes (26.3%) than in the Charadriiformes (2.3%) and the other orders (2.4%) in the Chongmin wetlands. Anseriformes should be the key monitoring group in future surveillance efforts. The peak prevalence of influenza A viruses in Charadriiformes were in April and September, and in other bird orders, the peaks were in November and December. Twelve subtypes of haemagglutinin (HA; H1-H12) and eight subtypes of neuraminidase (NA; N1, N2, N4-N9) were identified in 21 different combinations. The greatest subtype diversity could be found in common teal, suggesting that this species of the bird might play an important role in the ecology and epidemiology of influenza A viruses in Shanghai. These results will increase our understanding of the ecology and epidemiology of influenza A viruses in wild bird hosts in eastern China, and provide references for subsequent surveillance of influenza A virus in wild birds in this area.
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Affiliation(s)
- Ling Tang
- Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China; (L.T.); (W.T.); (X.L.); (C.H.)
| | - Wangjun Tang
- Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China; (L.T.); (W.T.); (X.L.); (C.H.)
| | - Xiaofang Li
- Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China; (L.T.); (W.T.); (X.L.); (C.H.)
| | - Chuanxia Hu
- Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China; (L.T.); (W.T.); (X.L.); (C.H.)
| | - Di Wu
- Shanghai Wildlife Conservation and Management Center, Shanghai 200072, China;
| | - Tianhou Wang
- Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China; (L.T.); (W.T.); (X.L.); (C.H.)
- Institute of Eco-Chongming (IEC), East China Normal University, Shanghai 202162, China
- Correspondence: (T.W.); (G.H.)
| | - Guimei He
- Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China; (L.T.); (W.T.); (X.L.); (C.H.)
- Institute of Eco-Chongming (IEC), East China Normal University, Shanghai 202162, China
- Correspondence: (T.W.); (G.H.)
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21
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Campbell LK, Magor KE. Pattern Recognition Receptor Signaling and Innate Responses to Influenza A Viruses in the Mallard Duck, Compared to Humans and Chickens. Front Cell Infect Microbiol 2020; 10:209. [PMID: 32477965 PMCID: PMC7236763 DOI: 10.3389/fcimb.2020.00209] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/16/2020] [Indexed: 12/25/2022] Open
Abstract
Mallard ducks are a natural host and reservoir of avian Influenza A viruses. While most influenza strains can replicate in mallards, the virus typically does not cause substantial disease in this host. Mallards are often resistant to disease caused by highly pathogenic avian influenza viruses, while the same strains can cause severe infection in humans, chickens, and even other species of ducks, resulting in systemic spread of the virus and even death. The differences in influenza detection and antiviral effectors responsible for limiting damage in the mallards are largely unknown. Domestic mallards have an early and robust innate response to infection that seems to limit replication and clear highly pathogenic strains. The regulation and timing of the response to influenza also seems to circumvent damage done by a prolonged or dysregulated immune response. Rapid initiation of innate immune responses depends on viral recognition by pattern recognition receptors (PRRs) expressed in tissues where the virus replicates. RIG-like receptors (RLRs), Toll-like receptors (TLRs), and Nod-like receptors (NLRs) are all important influenza sensors in mammals during infection. Ducks utilize many of the same PRRs to detect influenza, namely RIG-I, TLR7, and TLR3 and their downstream adaptors. Ducks also express many of the same signal transduction proteins including TBK1, TRIF, and TRAF3. Some antiviral effectors expressed downstream of these signaling pathways inhibit influenza replication in ducks. In this review, we summarize the recent advances in our understanding of influenza recognition and response through duck PRRs and their adaptors. We compare basal tissue expression and regulation of these signaling components in birds, to better understand what contributes to influenza resistance in the duck.
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Affiliation(s)
- Lee K Campbell
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.,Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
| | - Katharine E Magor
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.,Li Ka Shing Institute of Virology, University of Alberta, Edmonton, AB, Canada
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22
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Yin S, de Knegt HJ, de Jong MCM, Si Y, Prins HHT, Huang ZYX, de Boer WF. Effects of migration network configuration and migration synchrony on infection prevalence in geese. J Theor Biol 2020; 502:110315. [PMID: 32387368 DOI: 10.1016/j.jtbi.2020.110315] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 11/15/2022]
Abstract
Migration can influence dynamics of pathogen-host interactions. However, it is not clearly known how migration pattern, in terms of the configuration of the migration network and the synchrony of migration, affects infection prevalence. We therefore applied a discrete-time SIR model, integrating environmental transmission and migration, to various migration networks, including networks with serial, parallel, or both serial and parallel stopover sites, and with various levels of migration synchrony. We applied the model to the infection of avian influenza virus in a migratory geese population. In a network with only serial stopover sites, increasing the number of stopover sites reduced infection prevalence, because with every new stopover site, the amount of virus in the environment was lower than that in the previous stopover site, thereby reducing the exposure of the migratory population. In a network with parallel stopover sites, both increasing the number and earlier appearance of the stopover sites led to an earlier peak of infection prevalence in the migratory population, because the migratory population is exposed to larger total amount of virus in the environment, speeding-up the infection accumulation. Furthermore, higher migration synchrony reduced the average number of cumulative infection, because the majority of the population can fly to a new stopover site where the amount of virus is still relatively low and has not been increased due to virus shedding of infected birds. Our simulations indicate that a migration pattern with multiple serial stopover sites and with highly synchronized migration reduces the infection prevalence.
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Affiliation(s)
- Shenglai Yin
- Wildlife Ecology and Conservation Group, Wageningen University, 6708PB Wageningen, The Netherlands.
| | - Henrik J de Knegt
- Wildlife Ecology and Conservation Group, Wageningen University, 6708PB Wageningen, The Netherlands.
| | - Mart C M de Jong
- Quantitative Veterinary Epidemiology Group, Wageningen University, 6708PB Wageningen, The Netherlands.
| | - Yali Si
- Institute for China Sustainable Urbanization, Tsinghua University, 100091 Beijing, China; Institute of Environmental Sciences, Leiden University, 2300RA Leiden, Netherlands.
| | - Herbert H T Prins
- Wildlife Ecology and Conservation Group, Wageningen University, 6708PB Wageningen, The Netherlands.
| | - Zheng Y X Huang
- College of Life Science, Nanjing Normal University, 210046 Nanjing, China.
| | - Willem F de Boer
- Wildlife Ecology and Conservation Group, Wageningen University, 6708PB Wageningen, The Netherlands.
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Froberg T, Cuthbert F, Jennelle CS, Cardona C, Culhane M. Avian Influenza Prevalence and Viral Shedding Routes in Minnesota Ring-Billed Gulls ( Larus delawarensis). Avian Dis 2020; 63:120-125. [PMID: 31131567 DOI: 10.1637/11848-041718-reg.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/20/2018] [Indexed: 11/05/2022]
Abstract
Birds within the orders Charadriiformes (shorebirds, gulls) and Anseriformes (waterfowl) are reservoir hosts for avian influenza (AI) viruses, but their role in the transmission dynamics of AI viruses is unclear. To date, waterfowl have been the predominant focal species for most surveillance and epidemiological studies, yet gulls, in particular, have been shown to harbor reassortant AI viruses of both North American and Eurasian lineages and are underrepresented in North American surveillance efforts. To address this gap in surveillance, 1346 ring-billed gulls (Larus delawarensis) were sampled during spring and fall migrations and at three breeding sites in 2017 across Minnesota. Results indicate noticeable age-cohort dynamics in AI virus prevalence within ring-billed gulls in Minnesota. Immunologically naïve juveniles represented the cohort with the highest prevalence rate (57.8%). Regardless of age, more gulls had AI virus detected in oropharyngeal (OP) than in cloacal (CL) swabs. The high AI virus prevalence within ring-billed gulls, particularly in immunologically naïve birds, warrants further targeted surveillance efforts of ring-billed gulls and other closely related species.
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Affiliation(s)
- Todd Froberg
- Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, Saint Paul, MN 55108
| | - Francesca Cuthbert
- Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, Saint Paul, MN 55108
| | | | - Carol Cardona
- College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108
| | - Marie Culhane
- College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108.,Corresponding author. E-mail:
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24
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Inferring host roles in bayesian phylodynamics of global avian influenza A virus H9N2. Virology 2019; 538:86-96. [DOI: 10.1016/j.virol.2019.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 12/26/2022]
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25
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Disentangling the role of Africa in the global spread of H5 highly pathogenic avian influenza. Nat Commun 2019; 10:5310. [PMID: 31757953 PMCID: PMC6874648 DOI: 10.1038/s41467-019-13287-y] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/08/2019] [Indexed: 12/30/2022] Open
Abstract
The role of Africa in the dynamics of the global spread of a zoonotic and economically-important virus, such as the highly pathogenic avian influenza (HPAI) H5Nx of the Gs/GD lineage, remains unexplored. Here we characterise the spatiotemporal patterns of virus diffusion during three HPAI H5Nx intercontinental epidemic waves and demonstrate that Africa mainly acted as an ecological sink of the HPAI H5Nx viruses. A joint analysis of host dynamics and continuous spatial diffusion indicates that poultry trade as well as wild bird migrations have contributed to the virus spreading into Africa, with West Africa acting as a crucial hotspot for virus introduction and dissemination into the continent. We demonstrate varying paths of avian influenza incursions into Africa as well as virus spread within Africa over time, which reveal that virus expansion is a complex phenomenon, shaped by an intricate interplay between avian host ecology, virus characteristics and environmental variables.
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26
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First Report of Sarconema Eurycerca (Filarioidea) in Mute Swan ( Cygnus Olor) in Poland - the Case Report. Helminthologia 2019; 56:62-65. [PMID: 31662674 PMCID: PMC6662023 DOI: 10.2478/helm-2018-0042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 11/29/2018] [Indexed: 11/29/2022] Open
Abstract
Mute swans (Cygnus olor) of the Anatidae family are common in wetlands of Europe. They winter in Africa, Asia and some parts of Europe. The species is exposed to many pathogens in its places of residence, including parasites possibly introduced from tropical countries by other species of birds that take long wanderings and occupy a similar ecological niche. One such case is the infection of the Sarconema eurycerca, nematode belonging to the Filarioidea family. It invades the bird’s myocardium and, according to some authors, this nematode may be one of the main causes of swans’ deaths. The material for the present study was an approximately 2 year old female mute swan, which during the flight fell suddenly to the ground in Pomorskie Voivodeship (Poland, 53°50′18″N 18°12′54″E) in November. During the examination and medical observation, weakness, diarrhea and infestation with lice were found. The cause of its eventual death was attributed to a failure of the circulatory system. Post mortem, two abscesses with diameters of 2-3 cm were found in its liver parenchyma. Three nematodes were visible in the epicardium and many more in myocardium. Upon cutting open the heart, small yellowish foci, about 1 mm in diameter were scattered over valves. On the basis of morphological features, infection by Sarconema eurycerca was concluded. As far as we are aware, in Poland there were no earlier reports of this parasite infecting a swan.
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27
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Pereira H, Artois M, Bicout DJ. Fireworks-like surveillance approach: The case of HPAI H5N1 in wild birds in Europe. Transbound Emerg Dis 2019; 67:206-222. [PMID: 31482660 DOI: 10.1111/tbed.13342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 11/28/2022]
Abstract
Highly pathogenic avian influenza (HPAI) risk management requires efficient surveillance of the infection in wild birds for early warning purposes. In this study, our aim was to describe the spread of continent-wide infection cases using a fireworks model and therefore improve current surveillance systems. The fireworks model is a metaphor illustrating the spread of HPAI as a point source epizootic. The approach is based on early detection of the outbreak seeds (sparks from the fireworks) and uses a predictive model of the probability of the occurrence of new cases following a seed introduction; this then determines the spatiotemporal perimeter for intense surveillance investigations. For a case study, we used surveillance data on HPAI H5N1 in wild birds across Europe between 2005 and 2010 to describe the outbreaks and determine the success of the case detection used to inform management of the disease. The fireworks description assumes simultaneous introductions of 'seeds' of cases, which then 'explode' in local foci but do not merge into a progressive disease wave. This model fits the data well. Using this predictive approach for HPAI cases in EU countries, we found that the investigation radius needed to achieve a detection level of 90% of new cases after an outbreak ranged from 10 km to more than 300 km, depending on the outbreak pattern. Based on these findings, the fireworks approach can be a valuable method for identifying the perimeters and risk areas to be targeted for enhanced surveillance. The rationale of the fireworks approach is quite generic and can easily be adapted to different situations and contexts.
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Affiliation(s)
- Helena Pereira
- VetAgro Sup, Veterinary Campus of Lyon, Marcy l'Étoile, France
| | - Marc Artois
- VetAgro Sup, Veterinary Campus of Lyon, Marcy l'Étoile, France
| | - Dominique J Bicout
- VetAgro Sup, Veterinary Campus of Lyon, Marcy l'Étoile, France.,Biomathematics and Epidemiology, EPSP- Labo TIMC, UMR 5525 CNRS, Grenoble Alpes University and VetAgro Sup, Marcy l'Étoile, France
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28
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Canavan BC. Opening Pandora's Box at the roof of the world: Landscape, climate and avian influenza (H5N1). Acta Trop 2019; 196:93-101. [PMID: 31063711 DOI: 10.1016/j.actatropica.2019.04.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 04/14/2019] [Accepted: 04/18/2019] [Indexed: 11/27/2022]
Abstract
The purpose of this case study is to examine how environmental disruption and agricultural practices act synergistically to create a perfect storm for the spread of avian influenza. Actors in this case study include the vast permafrost landscape of the Qinghai-Tibet Plateau; a wild goose that migrates over the Himalayas; the highest altitude railway in the world that traverses the plateau into Tibet; and an avian virus (H5N1). Commencing in 2001, tens of thousands of railway workers travelled to remote regions of the plateau to work on the railway. In order to feed and shelter these workers, the Chinese government established captive-bred goose farms as a source of high protein food. Beginning in 2005 and continuing in subsequent years, Qinghai Lake was the scene for the unprecedented appearance of avian influenza among migratory geese. This was a key moment in the global spread of H5N1 to poultry on three continents. Remote sensing technology suggested an ecological pathway for the transfer of avian viruses among chickens, captive-bred geese, and wild geese. Within a region experiencing rapid climate change, Qinghai Lake is warming even faster than the global average. This may relate to the persistent outbreaks of avian flu strains from Qinghai during the past twelve years. Globally, exponential increases in bird flu outbreaks are not merely a matter of chance mutations in flu viruses but also a result of antecedent social and environmental factors. The Qinghai case study provides real-world examples that bring these factors into sharp focus.
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Affiliation(s)
- Barbara C Canavan
- Independent Scholar, Global Health and The Environment, 320 SE 62nd Ave., Portland, Oregon, United States.
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29
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Yang J, Müller NF, Bouckaert R, Xu B, Drummond AJ. Bayesian phylodynamics of avian influenza A virus H9N2 in Asia with time-dependent predictors of migration. PLoS Comput Biol 2019; 15:e1007189. [PMID: 31386651 PMCID: PMC6684064 DOI: 10.1371/journal.pcbi.1007189] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 06/17/2019] [Indexed: 11/25/2022] Open
Abstract
Model-based phylodynamic approaches recently employed generalized linear models (GLMs) to uncover potential predictors of viral spread. Very recently some of these models have allowed both the predictors and their coefficients to be time-dependent. However, these studies mainly focused on predictors that are assumed to be constant through time. Here we inferred the phylodynamics of avian influenza A virus H9N2 isolated in 12 Asian countries and regions under both discrete trait analysis (DTA) and structured coalescent (MASCOT) approaches. Using MASCOT we applied a new time-dependent GLM to uncover the underlying factors behind H9N2 spread. We curated a rich set of time-series predictors including annual international live poultry trade and national poultry production figures. This time-dependent phylodynamic prediction model was compared to commonly employed time-independent alternatives. Additionally the time-dependent MASCOT model allowed for the estimation of viral effective sub-population sizes and their changes through time, and these effective population dynamics within each country were predicted by a GLM. International annual poultry trade is a strongly supported predictor of virus migration rates. There was also strong support for geographic proximity as a predictor of migration rate in all GLMs investigated. In time-dependent MASCOT models, national poultry production was also identified as a predictor of virus genetic diversity through time and this signal was obvious in mainland China. Our application of a recently introduced time-dependent GLM predictors integrated rich time-series data in Bayesian phylodynamic prediction. We demonstrated the contribution of poultry trade and geographic proximity (potentially unheralded wild bird movements) to avian influenza spread in Asia. To gain a better understanding of the drivers of H9N2 spread, we suggest increased surveillance of the H9N2 virus in countries that are currently under-sampled as well as in wild bird populations in the most affected countries.
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Affiliation(s)
- Jing Yang
- College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
- School of Computer Science, University of Auckland, Auckland, New Zealand
- Centre for Computational Evolution, University of Auckland, Auckland, New Zealand
| | - Nicola F. Müller
- Department of Biosystems Science and Engineering, ETH Zürich, Zürich, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Remco Bouckaert
- School of Computer Science, University of Auckland, Auckland, New Zealand
- Centre for Computational Evolution, University of Auckland, Auckland, New Zealand
- Max Planck Institute for the Science of Human History, Jena, Germany
| | - Bing Xu
- College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
- Department of Earth System Science, Tsinghua University, Beijing, China
| | - Alexei J. Drummond
- School of Computer Science, University of Auckland, Auckland, New Zealand
- Centre for Computational Evolution, University of Auckland, Auckland, New Zealand
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30
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Clean bill of health? Towards an understanding of health risks posed by urban ibis. JOURNAL OF URBAN ECOLOGY 2019. [DOI: 10.1093/jue/juz006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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31
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La Sala LF, Burgos JM, Blanco DE, Stevens KB, Fernández AR, Capobianco G, Tohmé F, Pérez AM. Spatial modelling for low pathogenicity avian influenza virus at the interface of wild birds and backyard poultry. Transbound Emerg Dis 2019; 66:1493-1505. [PMID: 30698918 DOI: 10.1111/tbed.13136] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 01/11/2019] [Accepted: 01/14/2019] [Indexed: 11/28/2022]
Abstract
Low pathogenicity avian influenza virus (LPAIV) is endemic in wild birds and poultry in Argentina, and active surveillance has been in place to prevent any eventual virus mutation into a highly pathogenic avian influenza virus (HPAIV), which is exotic in this country. Risk mapping can contribute effectively to disease surveillance and control systems, but it has proven a very challenging task in the absence of disease data. We used a combination of expert opinion elicitation, multicriteria decision analysis (MCDA) and ecological niche modelling (ENM) to identify the most suitable areas for the occurrence of LPAIV at the interface between backyard domestic poultry and wild birds in Argentina. This was achieved by calculating a spatially explicit risk index. As evidenced by the validation and sensitivity analyses, our model was successful in identifying high-risk areas for LPAIV occurrence. Also, we show that the risk for virus occurrence is significantly higher in areas closer to commercial poultry farms. Although the active surveillance systems have been successful in detecting LPAIV-positive backyard farms and wild birds in Argentina, our predictions suggest that surveillance efforts in those compartments could be improved by including high-risk areas identified by our model. Our research provides a tool to guide surveillance activities in the future, and presents a mixed methodological approach which could be implemented in areas where the disease is exotic or rare and a knowledge-driven modelling method is necessary.
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Affiliation(s)
- Luciano F La Sala
- Instituto de Ciencias Biológicas y Biomédicas del Sur (CONICET - Universidad Nacional del Sur), Bahía Blanca, Argentina
| | - Julián M Burgos
- Marine and Freshwater Research Institute, Reykjavík, Iceland
| | - Daniel E Blanco
- Wetlands International/Fundación Humedales, Buenos Aires, Argentina
| | - Kim B Stevens
- Veterinary Epidemiology and Public Health Group, Department of Veterinary Clinical Sciences, Royal Veterinary College, London, UK
| | - Andrea R Fernández
- Departamento de Ciencias de la Administración, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Guillermo Capobianco
- Instituto de Matemática de Bahía Blanca (CONICET - Universidad Nacional del Sur), Bahía Blanca, Argentina.,Departamento de Matemática, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Fernando Tohmé
- Instituto de Matemática de Bahía Blanca (CONICET - Universidad Nacional del Sur), Bahía Blanca, Argentina
| | - Andrés M Pérez
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
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32
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Teitelbaum CS, Mueller T. Beyond Migration: Causes and Consequences of Nomadic Animal Movements. Trends Ecol Evol 2019; 34:569-581. [PMID: 30885413 DOI: 10.1016/j.tree.2019.02.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 02/08/2019] [Accepted: 02/12/2019] [Indexed: 11/18/2022]
Abstract
Recent advances in animal tracking reveal that many species display irregular movements that do not fall into classical categories of movement patterns such as range residency or migration. Here, we develop a unifying framework that distinguishes these nomadic movements based on their patterns, drivers, and mechanisms. Though they occur in diverse taxa and geographic regions, nomadic movements are united by both their underlying environmental drivers, mainly environmental stochasticity, and the resulting irregular, far-ranging movement patterns. The framework further classifies types of nomadic movements, including full, seasonal, phase, irruptive, and partial nomadism. Nomadic movements can have unique effects on populations, communities, and ecosystems, most notably providing intermittent disturbances and novel introductions of propagules.
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Affiliation(s)
- Claire S Teitelbaum
- Odum School of Ecology, University of Georgia, 140 E Green St., Athens, GA 30602, USA. https://twitter.com/@cs_teitelbaum
| | - Thomas Mueller
- Department of Biological Sciences, Goethe-University Frankfurt and Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Senckenberganlage 25, 60325 Frankfurt, Germany. https://twitter.com/@secnkenberg
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33
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Bui CM, Adam DC, Njoto E, Scotch M, MacIntyre CR. Characterising routes of H5N1 and H7N9 spread in China using Bayesian phylogeographical analysis. Emerg Microbes Infect 2018; 7:184. [PMID: 30459301 PMCID: PMC6246557 DOI: 10.1038/s41426-018-0185-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 09/08/2018] [Accepted: 09/20/2018] [Indexed: 11/08/2022]
Abstract
Avian influenza H5N1 subtype has caused a global public health concern due to its high pathogenicity in poultry and high case fatality rates in humans. The recently emerged H7N9 is a growing pandemic risk due to its sustained high rates of human infections, and recently acquired high pathogenicity in poultry. Here, we used Bayesian phylogeography on 265 H5N1 and 371 H7N9 haemagglutinin sequences isolated from humans, animals and the environment, to identify and compare migration patterns and factors predictive of H5N1 and H7N9 diffusion rates in China. H7N9 diffusion dynamics and predictor contributions differ from H5N1. Key determinants of spatial diffusion included: proximity between locations (for H5N1 and H7N9), and lower rural population densities (H5N1 only). For H7N9, additional predictors included low avian influenza vaccination rates, low percentage of nature reserves and high humidity levels. For both H5N1 and H7N9, we found viral migration rates from Guangdong to Guangxi and Guangdong to Hunan were highly supported transmission routes (Bayes Factor > 30). We show fundamental differences in wide-scale transmission dynamics between H5N1 and H7N9. Importantly, this indicates that avian influenza initiatives designed to control H5N1 may not be sufficient for controlling the H7N9 epidemic. We suggest control and prevention activities to specifically target poultry transportation networks between Central, Pan-Pearl River Delta and South-West regions.
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Affiliation(s)
- Chau M Bui
- University of New South Wales (UNSW), Sydney, NSW, Australia.
| | - Dillon C Adam
- University of New South Wales (UNSW), Sydney, NSW, Australia
| | - Edwin Njoto
- University of New South Wales (UNSW), Sydney, NSW, Australia
| | - Matthew Scotch
- University of New South Wales (UNSW), Sydney, NSW, Australia
- Arizona State University (ASU), Tempe, AZ, USA
| | - C Raina MacIntyre
- University of New South Wales (UNSW), Sydney, NSW, Australia
- Arizona State University (ASU), Tempe, AZ, USA
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34
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Muths E, Bailey LL, Lambert BA, Schneider SC. Estimating the probability of movement and partitioning seasonal survival in an amphibian metapopulation. Ecosphere 2018. [DOI: 10.1002/ecs2.2480] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Erin Muths
- U.S. Geological Survey Fort Collins Science Center 2150 Center Avenue, Building C Fort Collins Colorado 80526 USA
| | - Larissa L. Bailey
- Department of Fish, Wildlife, and Conservation Biology Colorado State University 1474 Campus Delivery Fort Collins Colorado 80523 USA
| | - Brad A. Lambert
- Colorado Natural Heritage Program Colorado State University Fort Collins Colorado 80523‐1475 USA
| | - Scott C. Schneider
- Colorado Natural Heritage Program Colorado State University Fort Collins Colorado 80523‐1475 USA
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35
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Baldwin JW, Leap K, Finn JT, Smetzer JR. Bayesian state-space models reveal unobserved off-shore nocturnal migration from Motus data. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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García-Jiménez R, Pérez-García JM, Margalida A. Drivers of daily movement patterns affecting an endangered vulture flight activity. BMC Ecol 2018; 18:39. [PMID: 30268111 PMCID: PMC6162909 DOI: 10.1186/s12898-018-0195-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 09/21/2018] [Indexed: 11/19/2022] Open
Abstract
Background The development of satellite tracking technology enables the gathering of huge amounts of accurate data on animal movements over measured time intervals, to reveal essential information about species’ patterns of spatial use. This information is especially important in optimizing the design of conservation and management strategies for endangered species. In this study, we analysed the main drivers of daily patterns in the flight activity of the threatened Bearded Vulture Gypaetus barbatus. We studied 19 Bearded Vultures tagged with solar-powered GPS transmitters from 2006 to 2016 in the Pyrenees (Spain). We assessed the relative influence of external factors (season and daylight time) and internal factors (sex, breeding season and territorial status) on their daily activity behaviour by computing mean hourly distance travelled, maximum displacement and cumulative distance travelled per hour. Results Our findings showed a clear difference in all the estimators between territorial and non-territorial (floating) members of the population, showing that non-territorial individuals spent much longer in flight and travelled larger distances per day. We detected an important influence of daylight time and season on the daily rhythms of Bearded Vultures; flight activity increased during the last three quarters of daylight and was greatest in the spring. Breeding period and sex had also an effect on the maximum displacement and cumulative distance travelled. Individuals flew more during the breeding period and females tended to exhibit greater cumulative and maximum distances per hour than males regardless of breeding season. Conclusions Pyrenean Bearded Vultures flight daily activity was strongly influenced by daylight time, season, and territorial status, while individual sex and breeding season showed a milder effect on the birds’ movement behaviour. This study gives a novel insight into how external factors act as main drivers of the daily flight activity pattern of a long-lived avian scavenger. Electronic supplementary material The online version of this article (10.1186/s12898-018-0195-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ruth García-Jiménez
- Department of Animal Science, Faculty of Life Sciences and Engineering, University of Lleida, 25198, Lleida, Spain
| | - Juan M Pérez-García
- Department of Animal Science, Faculty of Life Sciences and Engineering, University of Lleida, 25198, Lleida, Spain.
| | - Antoni Margalida
- Department of Animal Science, Faculty of Life Sciences and Engineering, University of Lleida, 25198, Lleida, Spain.,Division of Conservation Biology, Institute of Ecology and Evolution, University of Bern, 3012, Bern, Switzerland.,Institute for Game and Wildlife Research (CSIC-UCLM-JCCM), Ronda de Toledo s/n, 13071, Ciudad Real, Spain
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37
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Guinat C, Nicolas G, Vergne T, Bronner A, Durand B, Courcoul A, Gilbert M, Guérin JL, Paul MC. Spatio-temporal patterns of highly pathogenic avian influenza virus subtype H5N8 spread, France, 2016 to 2017. Euro Surveill 2018; 23:1700791. [PMID: 29970219 PMCID: PMC6030875 DOI: 10.2807/1560-7917.es.2018.23.26.1700791] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 03/02/2018] [Indexed: 11/25/2022] Open
Abstract
IntroductionFrance is one of Europe's foremost poultry producers and the world's fifth largest producer of poultry meat. In November 2016, highly pathogenic avian influenza (HPAI) virus subtype H5N8 emerged in poultry in the country. As of 23 March 2017, a total of 484 confirmed outbreaks were reported, with consequences on animal health and socio-economic impacts for producers. Methods: We examined the spatio-temporal distribution of outbreaks that occurred in France between November 2016 and March 2017, using the space-time K-function and space-time permutation model of the scan statistic test. Results: Most outbreaks affected duck flocks in south-west France. A significant space-time interaction of outbreaks was present at the beginning of the epidemic within a window of 8 km and 13 days. This interaction disappeared towards the epidemic end. Five spatio-temporal outbreak clusters were identified in the main poultry producing areas, moving sequentially from east to west. The average spread rate of the epidemic front wave was estimated to be 5.5 km/week. It increased from February 2017 and was negatively associated with the duck holding density. Conclusion: HPAI-H5N8 infections varied over time and space in France. Intense transmission events occurred at the early stages of the epidemic, followed by long-range jumps in the disease spread towards its end. Findings support strict control strategies in poultry production as well as the maintenance of high biosecurity standards for poultry holdings. Factors and mechanisms driving HPAI spread need to be further investigated.
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Affiliation(s)
- Claire Guinat
- École Nationale Vétérinaire de Toulouse, Toulouse, France
- Institut National de la Recherche Agronomique, Toulouse, France
| | - Gaëlle Nicolas
- Université Libre de Bruxelles, Brussels, Belgium
- These authors contributed equally to this work
| | - Timothée Vergne
- These authors contributed equally to this work
- Institut de Recherche pour le Développement, Montpellier, France
| | - Anne Bronner
- Direction Générale de l'Alimentation, Paris, France
| | - Benoit Durand
- Agence Nationale de Sécurité Sanitaire de l'Alimentation, Maisons-Alfort, France
| | - Aurélie Courcoul
- Agence Nationale de Sécurité Sanitaire de l'Alimentation, Maisons-Alfort, France
| | - Marius Gilbert
- Université Libre de Bruxelles, Brussels, Belgium
- Fonds National de la Recherche Scientifique, Brussels, Belgium
| | - Jean-Luc Guérin
- École Nationale Vétérinaire de Toulouse, Toulouse, France
- Institut National de la Recherche Agronomique, Toulouse, France
| | - Mathilde C Paul
- École Nationale Vétérinaire de Toulouse, Toulouse, France
- Institut National de la Recherche Agronomique, Toulouse, France
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Kwon JH, Lee DH, Swayne DE, Noh JY, Yuk SS, Jeong S, Lee SH, Woo C, Shin JH, Song CS. Experimental infection of H5N1 and H5N8 highly pathogenic avian influenza viruses in Northern Pintail (Anas acuta). Transbound Emerg Dis 2018; 65:1367-1371. [PMID: 29726612 DOI: 10.1111/tbed.12872] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Indexed: 01/22/2023]
Abstract
The wide geographic spread of Eurasian Goose/Guangdong lineage highly pathogenic avian influenza (HPAI) clade 2.3.4.4 viruses by wild birds is of great concern. In December 2014, an H5N8 HPAI clade 2.3.4.4 Group A (2.3.4.4A) virus was introduced to North America. Long-distance migratory wild aquatic birds between East Asia and North America, such as Northern Pintail (Anas acuta), were strongly suspected of being a source of intercontinental transmission. In this study, we evaluated the pathogenicity, infectivity and transmissibility of an H5N8 HPAI clade 2.3.4.4A virus in Northern Pintails and compared the results to that of an H5N1 HPAI clade 2.3.2.1 virus. All of Northern Pintails infected with either H5N1 or H5N8 virus lacked clinical signs and mortality, but the H5N8 clade 2.3.4.4 virus was more efficient at replicating within and transmitting between Northern Pintails than the H5N1 clade 2.3.2.1 virus. The H5N8-infected birds shed high titre of viruses from oropharynx and cloaca, which in the field supported virus transmission and spread. This study highlights the role of wild waterfowl in the intercontinental spread of some HPAI viruses. Migratory aquatic birds should be carefully monitored for the early detection of H5 clade 2.3.4.4 and other HPAI viruses.
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Affiliation(s)
- J-H Kwon
- Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - D-H Lee
- Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA, USA
| | - D E Swayne
- Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agricultural Research Service, U.S. Department of Agriculture, Athens, GA, USA
| | - J-Y Noh
- Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - S-S Yuk
- Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - S Jeong
- Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - S-H Lee
- Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - C Woo
- Environmental Health Research Department, National Institute of Environmental Research, Incheon, Korea
| | - J-H Shin
- Environmental Health Research Department, National Institute of Environmental Research, Incheon, Korea
| | - C-S Song
- Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul, Korea
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39
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van den Brand JMA, Verhagen JH, Veldhuis Kroeze EJB, van de Bildt MWG, Bodewes R, Herfst S, Richard M, Lexmond P, Bestebroer TM, Fouchier RAM, Kuiken T. Wild ducks excrete highly pathogenic avian influenza virus H5N8 (2014-2015) without clinical or pathological evidence of disease. Emerg Microbes Infect 2018; 7:67. [PMID: 29670093 PMCID: PMC5906613 DOI: 10.1038/s41426-018-0070-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/13/2018] [Accepted: 03/17/2018] [Indexed: 11/13/2022]
Abstract
Highly pathogenic avian influenza (HPAI) is essentially a poultry disease. Wild birds have traditionally not been involved in its spread, but the epidemiology of HPAI has changed in recent years. After its emergence in southeastern Asia in 1996, H5 HPAI virus of the Goose/Guangdong lineage has evolved into several sub-lineages, some of which have spread over thousands of kilometers via long-distance migration of wild waterbirds. In order to determine whether the virus is adapting to wild waterbirds, we experimentally inoculated the HPAI H5N8 virus clade 2.3.4.4 group A from 2014 into four key waterbird species—Eurasian wigeon (Anas penelope), common teal (Anas crecca), mallard (Anas platyrhynchos), and common pochard (Aythya ferina)—and compared virus excretion and disease severity with historical data of the HPAI H5N1 virus infection from 2005 in the same four species. Our results showed that excretion was highest in Eurasian wigeons for the 2014 virus, whereas excretion was highest in common pochards and mallards for the 2005 virus. The 2014 virus infection was subclinical in all four waterbird species, while the 2005 virus caused clinical disease and pathological changes in over 50% of the common pochards. In chickens, the 2014 virus infection caused systemic disease and high mortality, similar to the 2005 virus. In conclusion, the evidence was strongest for Eurasian wigeons as long-distance vectors for HPAI H5N8 virus from 2014. The implications of the switch in species-specific virus excretion and decreased disease severity may be that the HPAI H5 virus more easily spreads in the wild-waterbird population.
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Affiliation(s)
- Judith M A van den Brand
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.,Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Postbus 80163, 3508 TD, Utrecht, The Netherlands
| | - Josanne H Verhagen
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.,Department of Biology and Environmental Sciences, Faculty of Health and Life Sciences, Linnaeus University, 391 82, Kalmar, Sweden
| | | | - Marco W G van de Bildt
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Rogier Bodewes
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.,Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Postbus 80163, 3508 TD, Utrecht, The Netherlands
| | - Sander Herfst
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Mathilde Richard
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Pascal Lexmond
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Theo M Bestebroer
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Ron A M Fouchier
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - Thijs Kuiken
- Department of Viroscience, Erasmus MC, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
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40
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A brief summary of the epidemiology and genetic relatedness of avian influenza H9N2 virus in birds and mammals in the Middle East and North Africa. Epidemiol Infect 2017; 145:3320-3333. [PMID: 29168447 DOI: 10.1017/s0950268817002576] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
H9N2 is the most widespread avian influenza virus subtype in poultry worldwide. It infects a broad spectrum of host species including birds and mammals. Infections in poultry and humans vary from silent to fatal. Importantly, all AIV, which are fatal in humans (e.g. H5N1, H7N9) acquired their 'internal' gene segments from H9N2 viruses. Although H9N2 is endemic in the Middle East (ME) and North Africa since the late 1990s, little is known about its epidemiology and genetics on a regional level. In this review, we summarised the epidemiological situation of H9N2 in poultry and mammals in Iran, Iraq, Kuwait, Qatar, United Arab Emirates, Oman, Bahrain, Yemen, Saudi Arabia, Jordan, Palestine, Israel, Syria, Lebanon, Turkey, Egypt, Sudan, Libya, Tunisia, Algeria and Morocco. The virus has been isolated from humans in Egypt and serosurveys indicated widespread infection particularly among poultry workers and pigs in some countries. Some isolates replicated well in experimentally inoculated dogs, mice, hamsters and ferrets. Insufficient protection of immunised poultry was frequently reported most likely due to concurrent viral or bacterial infections and antigenic drift of the field viruses from outdated vaccine strains. Genetic analysis indicated several distinct phylogroups including a panzootic genotype in the Asian and African parts of the ME, which may be useful for the development of vaccines. The extensive circulation of H9N2 for about 20 years in this region where the H5N1 virus is also endemic in some countries, poses a serious public health threat. Regional surveillance and control strategy are highly recommended.
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41
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Fritzsche McKay A, Hoye BJ. Are Migratory Animals Superspreaders of Infection? Integr Comp Biol 2017; 56:260-7. [PMID: 27462034 DOI: 10.1093/icb/icw054] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Migratory animals are simultaneously challenged by the physiological demands of long-distance movements and the need to avoid natural enemies including parasites and pathogens. The potential for animal migrations to disperse pathogens across large geographic areas has prompted a growing body of research investigating the interactions between migration and infection. However, the phenomenon of animal migration is yet to be incorporated into broader theories in disease ecology. Because migrations may expose animals to a greater number and diversity of pathogens, increase contact rates between hosts, and render them more susceptible to infection via changes to immune function, migration has the potential to generate both "superspreader species" and infection "hotspots". However, migration has also been shown to reduce transmission in some species, by facilitating parasite avoidance ("migratory escape") and weeding out infected individuals ("migratory culling"). This symposium was convened in an effort to characterize more broadly the role that animal migrations play in the dynamics of infectious disease, by integrating a range of approaches and scales across host taxa. We began with questions related to within-host processes, focusing on the consequences of nutritional constraints and strenuous movement for individual immune capability, and of parasite infection for movement capacity. We then scaled-up to between-host processes to identify what types, distances, or patterns of host movements are associated with the spread of infectious agents. Finally, we discussed landscape-scale relationships between migration and infectious disease, and how these may be altered as a result of anthropogenic changes to climate and land use. We are just beginning to scratch the surface of the interactions between infection and animal migrations; yet, with so many migrations now under threat, there is an urgent need to develop a holistic understanding of the potential for migrations to both increase and reduce infection risk.
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Affiliation(s)
| | - Bethany J Hoye
- †School of Life & Environmental Sciences, Centre for Integrative Ecology, Deakin University, Geelong, Victoria 3220, Australia
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42
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Vittecoq M, Gauduin H, Oudart T, Bertrand O, Roche B, Guillemain M, Boutron O. Modeling the spread of avian influenza viruses in aquatic reservoirs: A novel hydrodynamic approach applied to the Rhône delta (southern France). THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 595:787-800. [PMID: 28410528 DOI: 10.1016/j.scitotenv.2017.03.165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 03/17/2017] [Accepted: 03/18/2017] [Indexed: 06/07/2023]
Abstract
Wild aquatic birds represent a natural reservoir of avian influenza viruses (AIV) that can be spread to poultry. AIV epizootics were associated with huge economic impacts during the last decades and are still of major concern. Within aquatic bird populations AIV are transmitted either by direct contact or through the ingestion of water that has been contaminated by infected individuals. This second route involving environmental transmission is of utmost importance in AIV dynamics, yet it has received far less attention than direct bird-to-bird contamination. Our objective was to combine a hydrodynamic model with data on mallard abundance and AIV infection rate within the population, so as to characterize virus dissemination within a complex wetland network. We chose the Vaccarès hydrosystem as a wetland model since it represents a large part of the Camargue region, which is a major wintering site for a large diversity of aquatic birds including AIV hosts. We aimed to identify the environmental parameters that drive AIV dynamics within this system and the spatio-temporal pattern of dispersion and persistence of viruses. Our results show that in a complex hydrosystem we can expect a great heterogeneity in AIV risk among wetlands. Our simulations underline how a simple "homogeneous box" approach could in the case of deltaic ecosystems minimize the expected risk by diluting it in the whole system. Moreover, such undermining of the risk perception could affect the predictions relative to risk duration. We present a new approach to identify hotspots of virus concentrations within deltaic areas that could take advantage of the duck count data, AIV surveys and hydrodynamic models that may already be available in several major duck wintering areas comprised of complex hydrosystems, such as the large European deltas. Our method could be of particular interest to optimize surveillance strategies in the current context of highly pathogenic AIV diffusion within wild bird populations.
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Affiliation(s)
- Marion Vittecoq
- Tour du Valat Research Institute, Arles, France; UMR MIVEGEC (IRD/CNRS/UM), 5290 Montpellier, France.
| | | | | | | | - Benjamin Roche
- UMR MIVEGEC (IRD/CNRS/UM), 5290 Montpellier, France; IRD, UMMISCO (UMI IRD/UPMC 209), Bondy, France; Centre for Ecological and Evolutionary Research on Cancer (CREEC), Montpellier, France
| | - Matthieu Guillemain
- Office National de la Chasse et de la Faune Sauvage, Unité Avifaune Migratrice, Arles, France
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43
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Takemae N, Tsunekuni R, Sharshov K, Tanikawa T, Uchida Y, Ito H, Soda K, Usui T, Sobolev I, Shestopalov A, Yamaguchi T, Mine J, Ito T, Saito T. Five distinct reassortants of H5N6 highly pathogenic avian influenza A viruses affected Japan during the winter of 2016-2017. Virology 2017; 512:8-20. [PMID: 28892736 DOI: 10.1016/j.virol.2017.08.035] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/22/2017] [Accepted: 08/24/2017] [Indexed: 01/05/2023]
Abstract
To elucidate the evolutionary pathway, we sequenced the entire genomes of 89 H5N6 highly pathogenic avian influenza viruses (HPAIVs) isolated in Japan during winter 2016-2017 and 117 AIV/HPAIVs isolated in Japan and Russia. Phylogenetic analysis showed that at least 5 distinct genotypes of H5N6 HPAIVs affected poultry and wild birds during that period. Japanese H5N6 isolates shared a common genetic ancestor in 6 of 8 genomic segments, and the PA and NS genes demonstrated 4 and 2 genetic origins, respectively. Six gene segments originated from a putative ancestral clade 2.3.4.4 H5N6 virus that was a possible genetic reassortant among Chinese clade 2.3.4.4 H5N6 HPAIVs. In addition, 2 NS clusters and a PA cluster in Japanese H5N6 HPAIVs originated from Chinese HPAIVs, whereas 3 distinct AIV-derived PA clusters were evident. These results suggest that migratory birds were important in the spread and genetic diversification of clade 2.3.4.4 H5 HPAIVs.
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Affiliation(s)
- Nobuhiro Takemae
- Division of Transboundary Animal Disease, National Institute of Animal Health, NARO, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan; Thailand-Japan Zoonotic Diseases Collaboration Center, Kasetklang, Chatuchak, Bangkok 10900, Thailand
| | - Ryota Tsunekuni
- Division of Transboundary Animal Disease, National Institute of Animal Health, NARO, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan; Thailand-Japan Zoonotic Diseases Collaboration Center, Kasetklang, Chatuchak, Bangkok 10900, Thailand
| | - Kirill Sharshov
- Research Institute of Experimental and Clinical Medicine, 2, Timakova street, Novosibirsk 630117, Russia
| | - Taichiro Tanikawa
- Division of Transboundary Animal Disease, National Institute of Animal Health, NARO, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan; Thailand-Japan Zoonotic Diseases Collaboration Center, Kasetklang, Chatuchak, Bangkok 10900, Thailand
| | - Yuko Uchida
- Division of Transboundary Animal Disease, National Institute of Animal Health, NARO, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan; Thailand-Japan Zoonotic Diseases Collaboration Center, Kasetklang, Chatuchak, Bangkok 10900, Thailand
| | - Hiroshi Ito
- The Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori, Tottori 680-8550, Japan
| | - Kosuke Soda
- The Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori, Tottori 680-8550, Japan
| | - Tatsufumi Usui
- The Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori, Tottori 680-8550, Japan
| | - Ivan Sobolev
- Research Institute of Experimental and Clinical Medicine, 2, Timakova street, Novosibirsk 630117, Russia
| | - Alexander Shestopalov
- Research Institute of Experimental and Clinical Medicine, 2, Timakova street, Novosibirsk 630117, Russia
| | - Tsuyoshi Yamaguchi
- The Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori, Tottori 680-8550, Japan
| | - Junki Mine
- Division of Transboundary Animal Disease, National Institute of Animal Health, NARO, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan; Thailand-Japan Zoonotic Diseases Collaboration Center, Kasetklang, Chatuchak, Bangkok 10900, Thailand
| | - Toshihiro Ito
- The Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori, Tottori 680-8550, Japan
| | - Takehiko Saito
- Division of Transboundary Animal Disease, National Institute of Animal Health, NARO, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan; Thailand-Japan Zoonotic Diseases Collaboration Center, Kasetklang, Chatuchak, Bangkok 10900, Thailand; United Graduate School of Veterinary Sciences, Gifu University, 1-1, Yanagito, Gifu, Gifu 501-1112, Japan.
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44
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Elmberg J, Berg C, Lerner H, Waldenström J, Hessel R. Potential disease transmission from wild geese and swans to livestock, poultry and humans: a review of the scientific literature from a One Health perspective. Infect Ecol Epidemiol 2017; 7:1300450. [PMID: 28567210 PMCID: PMC5443079 DOI: 10.1080/20008686.2017.1300450] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 12/23/2016] [Indexed: 12/16/2022] Open
Abstract
There are more herbivorous waterfowl (swans and geese) close to humans, livestock and poultry than ever before. This creates widespread conflict with agriculture and other human interests, but also debate about the role of swans and geese as potential vectors of disease of relevance for human and animal health. Using a One Health perspective, we provide the first comprehensive review of the scientific literature about the most relevant viral, bacterial, and unicellular pathogens occurring in wild geese and swans. Research thus far suggests that these birds may play a role in transmission of avian influenza virus, Salmonella, Campylobacter, and antibiotic resistance. On the other hand, at present there is no evidence that geese and swans play a role in transmission of Newcastle disease, duck plague, West Nile virus, Vibrio, Yersinia, Clostridium, Chlamydophila, and Borrelia. Finally, based on present knowledge it is not possible to say if geese and swans play a role in transmission of Escherichia coli, Pasteurella, Helicobacter, Brachyspira, Cryptosporidium, Giardia, and Microsporidia. This is largely due to changes in classification and taxonomy, rapid development of identification methods and lack of knowledge about host specificity. Previous research tends to overrate the role of geese and swans as disease vectors; we do not find any evidence that they are significant transmitters to humans or livestock of any of the pathogens considered in this review. Nevertheless, it is wise to keep poultry and livestock separated from small volume waters used by many wild waterfowl, but there is no need to discourage livestock grazing in nature reserves or pastures where geese and swans are present. Under some circumstances it is warranted to discourage swans and geese from using wastewater ponds, drinking water reservoirs, and public beaches. Intensified screening of swans and geese for AIV, West Nile virus and anatid herpesvirus is warranted.
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Affiliation(s)
- Johan Elmberg
- Division of Natural Sciences, Kristianstad University, Kristianstad, Sweden
| | - Charlotte Berg
- Department of Animal Environment and Health, SLU Swedish University of Agricultural Sciences, Skara, Sweden
| | - Henrik Lerner
- Department of Health Care Sciences, Ersta Sköndal Bräcke University College, Stockholm, Sweden
| | - Jonas Waldenström
- Centre for Ecology and Evolution in Microbial Model Systems, Linneaus University, Kalmar, Sweden
| | - Rebecca Hessel
- Division of Natural Sciences, Kristianstad University, Kristianstad, Sweden
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45
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Caron A, Cappelle J, Gaidet N. Challenging the conceptual framework of maintenance hosts for influenza A viruses in wild birds. J Appl Ecol 2016. [DOI: 10.1111/1365-2664.12839] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Alexandre Caron
- UPR AGIRs; Department Environment & Societies; Cirad; Campus International de Baillarguet; Montpellier 34398 Montpellier Cedex 5 France
- Faculdade de Veterinária; Universidade Edouardo Mondlane; Av. de Moçambique Km; 1,5 - Caixa Postal 257 Maputo 01009 Moçambique
| | - Julien Cappelle
- UPR AGIRs; Department Environment & Societies; Cirad; Campus International de Baillarguet; Montpellier 34398 Montpellier Cedex 5 France
- Institut Pasteur du Cambodge; Epi-SP, 5; Boulevard Monivong; BP 983 Phnom Penh Cambodia
| | - Nicolas Gaidet
- UPR AGIRs; Department Environment & Societies; Cirad; Campus International de Baillarguet; Montpellier 34398 Montpellier Cedex 5 France
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46
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Affiliation(s)
- Colin A. Russell
- Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 0ES, UK
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47
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Loss SR, Noden BH, Hamer GL, Hamer SA. A quantitative synthesis of the role of birds in carrying ticks and tick-borne pathogens in North America. Oecologia 2016; 182:947-959. [PMID: 27670413 DOI: 10.1007/s00442-016-3731-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 09/09/2016] [Indexed: 10/20/2022]
Abstract
Birds play a central role in the ecology of tick-borne pathogens. They expand tick populations and pathogens across vast distances and serve as reservoirs that maintain and amplify transmission locally. Research into the role of birds for supporting ticks and tick-borne pathogens has largely been descriptive and focused in small areas. To expand inference beyond these studies, we conducted a quantitative review at the scale of North America to identify avian life history correlates of tick infestation and pathogen prevalence, calculate species-level indices of importance for carrying ticks, and identify research gaps limiting understanding of tick-borne pathogen transmission. Across studies, 78 of 162 bird species harbored ticks, yielding an infestation prevalence of 1981 of 38,929 birds (5.1 %). Avian foraging and migratory strategies interacted to influence infestation. Ground-foraging species, especially non-migratory ground foragers, were disproportionately likely to have high prevalence and intensity of tick infestation. Studies largely focused on Borrelia burgdorferi, the agent of Lyme disease, and non-migratory ground foragers were especially likely to carry B. burgdorferi-infected ticks, a finding that highlights the potential importance of resident birds in local pathogen transmission. Based on infestation indices, all "super-carrier" bird species were passerines. Vast interior areas of North America, many bird and tick species, and most tick-borne pathogens, remain understudied, and research is needed to address these gaps. More studies are needed that quantify tick host preferences, host competence, and spatiotemporal variation in pathogen prevalence and vector and host abundance. This information is crucial for predicting pathogen transmission dynamics under future global change.
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Affiliation(s)
- Scott R Loss
- Department of Natural Resource Ecology and Management, Oklahoma State University, 008C Ag Hall, Stillwater, OK, 74078, USA.
| | - Bruce H Noden
- Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, USA
| | - Gabriel L Hamer
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - Sarah A Hamer
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
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48
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Xu Y, Gong P, Wielstra B, Si Y. Southward autumn migration of waterfowl facilitates cross-continental transmission of the highly pathogenic avian influenza H5N1 virus. Sci Rep 2016; 6:30262. [PMID: 27507581 PMCID: PMC4978953 DOI: 10.1038/srep30262] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 07/04/2016] [Indexed: 01/21/2023] Open
Abstract
The highly pathogenic avian influenza subtype H5N1 (HPAI H5N1) is a worldwide zoonotic infectious disease, threatening humans, poultry and wild birds. The role of wild birds in the spread of HPAI H5N1 has previously been investigated by comparing disease spread patterns with bird migration routes. However, the different roles that the southward autumn and northward spring migration might play in virus transmission have hardly been explored. Using direction analysis, we analyze HPAI H5N1 transmission directions and angular concentration of currently circulating viral clades, and compare these with waterfowl seasonal migration directions along major waterfowl flyways. Out of 22 HPAI H5N1 transmission directions, 18 had both a southward direction and a relatively high concentration. Differences between disease transmission and waterfowl migration directions were significantly smaller for autumn than for spring migration. The four northward transmission directions were found along Asian flyways, where the initial epicenter of the virus was located. We suggest waterfowl first picked up the virus from East Asia, then brought it to the north via spring migration, and then spread it to other parts of world mainly by autumn migration. We emphasize waterfowl autumn migration plays a relatively important role in HPAI H5N1 transmission compared to spring migration.
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Affiliation(s)
- Yanjie Xu
- Ministry of Education Key Laboratory for Earth System Modeling, and Center for Earth System Science, Tsinghua University, Beijing, China
| | - Peng Gong
- Ministry of Education Key Laboratory for Earth System Modeling, and Center for Earth System Science, Tsinghua University, Beijing, China.,Joint Center for Global Change Studies, Beijing 100875, China
| | - Ben Wielstra
- Department of Animal and Plant Sciences, University of Sheffield, S10 2TN Sheffield, UK.,Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - Yali Si
- Ministry of Education Key Laboratory for Earth System Modeling, and Center for Earth System Science, Tsinghua University, Beijing, China.,Resource Ecology Group, Wageningen University, Droevendaalsesteeg 3a, 6708 PB Wageningen, The Netherlands
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49
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Boulinier T, Kada S, Ponchon A, Dupraz M, Dietrich M, Gamble A, Bourret V, Duriez O, Bazire R, Tornos J, Tveraa T, Chambert T, Garnier R, McCoy KD. Migration, Prospecting, Dispersal? What Host Movement Matters for Infectious Agent Circulation? Integr Comp Biol 2016; 56:330-42. [PMID: 27252195 DOI: 10.1093/icb/icw015] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Spatial disease ecology is emerging as a new field that requires the integration of complementary approaches to address how the distribution and movements of hosts and parasites may condition the dynamics of their interactions. In this context, migration, the seasonal movement of animals to different zones of their distribution, is assumed to play a key role in the broad scale circulation of parasites and pathogens. Nevertheless, migration is not the only type of host movement that can influence the spatial ecology, evolution, and epidemiology of infectious diseases. Dispersal, the movement of individuals between the location where they were born or bred to a location where they breed, has attracted attention as another important type of movement for the spatial dynamics of infectious diseases. Host dispersal has notably been identified as a key factor for the evolution of host-parasite interactions as it implies gene flow among local host populations and thus can alter patterns of coevolution with infectious agents across spatial scales. However, not all movements between host populations lead to dispersal per se. One type of host movement that has been neglected, but that may also play a role in parasite spread is prospecting, i.e., movements targeted at selecting and securing new habitat for future breeding. Prospecting movements, which have been studied in detail in certain social species, could result in the dispersal of infectious agents among different host populations without necessarily involving host dispersal. In this article, we outline how these various types of host movements might influence the circulation of infectious disease agents and discuss methodological approaches that could be used to assess their importance. We specifically focus on examples from work on colonial seabirds, ticks, and tick-borne infectious agents. These are convenient biological models because they are strongly spatially structured and involve relatively simple communities of interacting species. Overall, this review emphasizes that explicit consideration of the behavioral and population ecology of hosts and parasites is required to disentangle the relative roles of different types of movement for the spread of infectious diseases.
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Affiliation(s)
- Thierry Boulinier
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Sarah Kada
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Aurore Ponchon
- Eco-ethology Research Group, ISPA, 1149-041 Lisbon, Portugal
| | - Marlène Dupraz
- MIVEGEC, CNRS-IRD-Université Montpellier, UMR 5190, 34394 Montpellier, France
| | - Muriel Dietrich
- Department of Microbiology, University of Pretoria, Pretoria 0002, South Africa
| | - Amandine Gamble
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Vincent Bourret
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Olivier Duriez
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Romain Bazire
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Jérémy Tornos
- *UMR 5175 CEFE, CNRS - Université Montpellier - Université P. Valéry - EPHE, 34293 Montpellier, France
| | - Torkild Tveraa
- Norwegian Institute for Nature Research, Fram Center, 9296 Tromsoe, Norway
| | - Thierry Chambert
- Department of Ecosystem Science and Management, Pennsylvania State University, PA 16802, USA
| | - Romain Garnier
- **Department of Veterinary Medicine, Disease Dynamics Unit, University of Cambridge, Cambridge CB3 0ES, UK
| | - Karen D McCoy
- MIVEGEC, CNRS-IRD-Université Montpellier, UMR 5190, 34394 Montpellier, France
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Śmietanka K, Bocian Ł, Meissner W, Ziętek-Barszcz A, Żółkoś K. Assessment of the Potential Distance of Dispersal of High Pathogenicity Avian Influenza Virus by Wild Mallards. Avian Dis 2016; 60:316-21. [DOI: 10.1637/11080-040715-regr] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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