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Pinto LB, Ometto T, Araújo J, Thomazelli LM, Seixas MM, Barbosa CM, Ramos DGS, Melo ALT, Pinho JB, Durigon EL, Aguiar DM. Investigation of Influenza A, West Nile and Newcastle Disease Viruses in Birds from the Pantanal Wetlands of Mato Grosso, Brazil. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2016. [DOI: 10.1590/1806-9061-2015-0111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- LB Pinto
- Universidade Federal de Mato Grosso, Brazil
| | - T Ometto
- Universidade de São Paulo, Brazil
| | - J Araújo
- Universidade de São Paulo, Brazil
| | | | | | | | - DGS Ramos
- Universidade Federal de Mato Grosso, Brazil
| | - ALT Melo
- Universidade Federal de Mato Grosso, Brazil
| | - JB Pinho
- Universidade Federal de Mato Grosso, Brazil
| | | | - DM Aguiar
- Universidade Federal de Mato Grosso, Brazil
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Huang Y, Wille M, Benkaroun J, Munro H, Bond AL, Fifield DA, Robertson GJ, Ojkic D, Whitney H, Lang AS. Perpetuation and reassortment of gull influenza A viruses in Atlantic North America. Virology 2014; 456-457:353-63. [PMID: 24889254 DOI: 10.1016/j.virol.2014.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 03/24/2014] [Accepted: 04/04/2014] [Indexed: 12/09/2022]
Abstract
Gulls are important hosts of avian influenza A viruses (AIVs) and gull AIVs often contain gene segments of mixed geographic and host lineage origins. In this study, the prevalence of AIV in gulls of Newfoundland, Canada from 2008 to 2011 was analyzed. Overall prevalence was low (30/1645, 1.8%) but there was a distinct peak of infection in the fall. AIV seroprevalence was high in Newfoundland gulls, with 50% of sampled gulls showing evidence of previous infection. Sequences of 16 gull AIVs were determined and analyzed to shed light on the transmission, reassortment and persistence dynamics of gull AIVs in Atlantic North America. Intercontinental and waterfowl lineage reassortment was prevalent. Of particular note were a wholly Eurasian AIV and another with an intercontinental reassortant waterfowl lineage virus. These patterns of geographic and inter-host group transmission highlight the importance of characterization of gull AIVs as part of attempts to understand global AIV dynamics.
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Affiliation(s)
- Yanyan Huang
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St. John's, NL, Canada A1B 3X9
| | - Michelle Wille
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St. John's, NL, Canada A1B 3X9
| | - Jessica Benkaroun
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St. John's, NL, Canada A1B 3X9
| | - Hannah Munro
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St. John's, NL, Canada A1B 3X9
| | - Alexander L Bond
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St. John's, NL, Canada A1B 3X9
| | - David A Fifield
- Newfoundland and Labrador Department of Natural Resources, P.O. Box 7400, St. John's, NL, Canada A1E 3Y5
| | - Gregory J Robertson
- Wildlife Research Division, Environment Canada, 6 Bruce St., Mount Pearl, NL, Canada A1N 4T3
| | - Davor Ojkic
- Animal Health Laboratory, University of Guelph, Box 3612, Guelph, ON, Canada N1H 6R8
| | - Hugh Whitney
- Newfoundland and Labrador Department of Natural Resources, P.O. Box 7400, St. John's, NL, Canada A1E 3Y5
| | - Andrew S Lang
- Department of Biology, Memorial University of Newfoundland, 232 Elizabeth Avenue, St. John's, NL, Canada A1B 3X9.
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North Atlantic migratory bird flyways provide routes for intercontinental movement of avian influenza viruses. PLoS One 2014; 9:e92075. [PMID: 24647410 PMCID: PMC3960164 DOI: 10.1371/journal.pone.0092075] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 02/18/2014] [Indexed: 12/25/2022] Open
Abstract
Avian influenza virus (AIV) in wild birds has been of increasing interest over the last decade due to the emergence of AIVs that cause significant disease and mortality in both poultry and humans. While research clearly demonstrates that AIVs can move across the Pacific or Atlantic Ocean, there has been no data to support the mechanism of how this occurs. In spring and autumn of 2010 and autumn of 2011 we obtained cloacal swab samples from 1078 waterfowl, gulls, and shorebirds of various species in southwest and west Iceland and tested them for AIV. From these, we isolated and fully sequenced the genomes of 29 AIVs from wild caught gulls (Charadriiformes) and waterfowl (Anseriformes) in Iceland. We detected viruses that were entirely (8 of 8 genomic segments) of American lineage, viruses that were entirely of Eurasian lineage, and viruses with mixed American-Eurasian lineage. Prior to this work only 2 AIVs had been reported from wild birds in Iceland and only the sequence from one segment was available in GenBank. This is the first report of finding AIVs of entirely American lineage and Eurasian lineage, as well as reassortant viruses, together in the same geographic location. Our study demonstrates the importance of the North Atlantic as a corridor for the movement of AIVs between Europe and North America.
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