Isolation and Genetic Characterization of Avian Influenza Viruses and a Newcastle Disease Virus from Wild Birds in Barbados: 2003–2004

Douglas, Kirk Osmond; Lavoie, Marie; Kim, L. Mia; Afonso, Claudio L.; Suarez, David L.

doi:10.1637/0005-2086(2007)51[781:iagcoa]2.0.co;2

Cited by 28 publications

(22 citation statements)

References 30 publications

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“…The isolated AIVs included five different HA subtypes (3, 5, 7, 9, and 10) and five NA subtypes (1, 2, 3, 6, and 9) indicating that wild birds in Egypt introduce a wide range of viruses into the Egyptian environment. Similar to previous surveillance studies, 1,23 all isolates were detected in Anseriformes (mallard, teal, pintail, and shoveler).…”

Section: Discussionsupporting

confidence: 88%

Surveillance for avian influenza viruses in wild birds at live bird markets, Egypt, 2014‐2016

Kayed

Kandeil

Gomaa

et al. 2019

Influenza Resp Viruses

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Aim Egypt is the habitat for a large number of bird species and serves as a vital stopover for millions of migratory birds during their annual migration between the Palearctic and Afrotropical ecozones. Surveillance for avian influenza viruses (AIVs) is critical to assessing risks for potential spreading of these viruses among domestic poultry. Surveillance for AIV among hunted and captured wild birds in Egypt was conducted in order to understand the characteristics of circulating viruses. Methods Sampling of wild bird species occurred in two locations along the Mediterranean Coast of Egypt in the period from 2014 to 2016. A total of 1316 samples (cloacal and oropharyngeal swabs) were collected from 20 different species of hunted or captured resident and migratory birds sold at live bird markets. Viruses were propagated then sequenced. Phylogenetic analysis and receptor binding affinities were studied. Results Eighteen AIVs (1.37%) were isolated from migratory Anseriformes at live bird markets. Further characterization of the viral isolates identified five hemagglutinin (H3, H5, H7, H9, and H10) and five neuraminidase (N1, N2, N3, N6, and N9) subtypes, which were related to isolates reported in the Eurasian region. Two of the 18 isolates were highly pathogenic H5N1 viruses related to clade 2.2.1, while three isolates were G1‐like H9N2 viruses. Conclusions Our data show significant diversity of AIVs in Anserifromes sold at live bird markets in Egypt. This allows for genetic exchanges between imported and enzootic viruses and put the exposed humans at a higher risk of infection.

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Section: Discussionsupporting

confidence: 88%

Surveillance for avian influenza viruses in wild birds at live bird markets, Egypt, 2014‐2016

Kayed

Kandeil

Gomaa

et al. 2019

Influenza Resp Viruses

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“…Many of these migratory birds have been implicated as carriers of viral pathogens such as AIV, NDV and WNV. One such bird is the blue winged teal, from which AIV and NDV were isolated in Barbados [ 9 ]. In this study no antibodies were detected in the sampled backyard birds against AIV.…”

Section: Discussionmentioning

confidence: 99%

Detection of Antibodies to Seven Priority Pathogens in Backyard Poultry in Trinidad, West Indies

Jordan

Bolfă

Marchi

et al. 2018

Veterinary Sciences

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Backyard poultry farms in Trinidad and Tobago (T&T) play a vital role in providing food and income for rural communities. There is currently no information on the presence and circulation of pathogens in backyard poultry farms in T&T, and little is known in relation to the potential risks of spread of these pathogens to the commercial poultry sector. In order to address this, serum samples were collected from 41 chickens on five backyard farms taken from selected locations in Trinidad. Samples were tested for antibodies to seven priority pathogens of poultry by enzyme-linked immunosorbent assay (ELISA). Antibodies were detected in 65% (CI 95%: 50–78%) of the sampled birds for Infectious bronchitis virus (IBV), 67.5% (CI 95%: 52–80%) for Infectious bursal disease virus (IBDV), 10% (CI 95%: 4–23%) for Newcastle disease virus (NDV), 0% (CI 95%: 0–0%) for Avian influenza virus (AIV), 0% (CI 95%: 0–0%) for West Nile virus (WNV), 31.7% (CI 95%: 20–47%) for Mycoplasm gallisepticum/synoviae and 0% (CI 95%: 0–0%) for Salmonella enterica serotype Enteritidis. These results reveal the presence and circulation of important pathogens of poultry in selected backyard farms in Trinidad. The results provide important information which should be taken into consideration when assessing the risks of pathogen transmission between commercial and backyard poultry farms, as well as between poultry and wild birds.

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“…Previous studies showed that the occurrence of the H5 subtype was not uncommon in AIV monitoring (Hanson et al., 2003; Wallensten et al., 2007; Dusek et al., 2009). Other studies have provided information about the AIV in migratory and resident birds in Argentina, Bolivia and Caribbean countries, and these studies identified H1, H3, H4, H10 and H13 subtypes (Douglas et al., 2007; Spackman et al., 2007a; Pereda et al., 2008; Ghersi et al., 2009; Alvarez et al., 2010). This kind of research can provide valuable information about the species involved in the introduction and circulation of AIV to new areas.…”

Section: Discussionmentioning

confidence: 99%

Avian Influenza Survey in Migrating Waterfowl in Sonora, Mexico

Montalvo-Corral

López-Robles

Hernández

2010

Transboundary and Emerging Diseases

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A two-year survey was carried out on the occurrence of avian influenza in migrating birds in two estuaries of the Mexican state of Sonora, which is located within the Pacific flyway. Cloacal and oropharyngeal swabs were collected from 1262 birds, including 20 aquatic bird species from the Moroncarit and Tobari estuaries in Sonora, Mexico. Samples were tested for type A influenza (M), H5 Eurasian and North American subtypes (H5EA and H5NA respectively) and the H7 North American subtype (H7NA). Gene detection was determined by one-step real-time reverse transcription polymerase chain reaction (RRT-PCR). The results revealed that neither the highly pathogenic avian influenza virus H5 of Eurasian lineage nor H7NA were detected. The overall prevalence of avian influenza type A (M-positive) in the sampled birds was 3.6% with the vast majority in dabbling ducks (Anas species). Samples from two birds, one from a Redhead (Aythya americana) and another from a Northern Shoveler (Anas clypeata), were positive for the low-pathogenic H5 avian influenza virus of North American lineage. These findings represented documented evidence of the occurrence of avian influenza in wintering birds in the Mexican wetlands. This type of study contributes to the understanding of how viruses spread to new regions of North America and highlights the importance of surveillance for the early detection and control of potentially pathogenic strains, which could affect animal and human health.

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Isolation and Genetic Characterization of Avian Influenza Viruses and a Newcastle Disease Virus from Wild Birds in Barbados: 2003–2004

Cited by 28 publications

References 30 publications

Surveillance for avian influenza viruses in wild birds at live bird markets, Egypt, 2014‐2016

Surveillance for avian influenza viruses in wild birds at live bird markets, Egypt, 2014‐2016

Detection of Antibodies to Seven Priority Pathogens in Backyard Poultry in Trinidad, West Indies

Avian Influenza Survey in Migrating Waterfowl in Sonora, Mexico

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