Type A Influenza Viruses in Waterfowl in Ohio and Implications for Domestic Turkeys

Rd, Slemons; Mc, Shieldcastle; Ld, Heyman; Ke, Bednarik; Da, Senne

doi:10.2307/1591309

Cited by 36 publications

(14 citation statements)

References 12 publications

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“…The low prevalence or failure to detect AIV in these birds at sites other than the Dela- ware Bay is consistent with other studies (Slepuskin et al, 1972;Zakstelskaya et al, 1974;Bahl et al, 1977;Boudreault et al, 1980;Thorsen et al, 1980;Honda et al, 1981;Tsubokura et al, 1981;Abenes et al, 1982;Sinnecker et al, 1983;Mackenzie et al, 1984;Nettles et al, 1985;Slemons et al, 1991;Astorga et al, 1994;Okazaki et al, 2000;Munster et al, 2007). Although the reasons for this spatiotemporal cluster are not clear, one possibility is the high concentration of shorebirds that use this site during May.…”

Section: Discussionsupporting

confidence: 87%

Is the Occurrence of Avian Influenza Virus in Charadriiformes Species and Location Dependent?

Hanson

Luttrell

Goekjian

et al. 2008

Journal of Wildlife Diseases

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104

101

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ABSTRACT:Birds in the order Charadriiformes were sampled at multiple sites in the eastern half of the continental USA, as well as at Argentina, Chile, and Bermuda, during 1999-2005, and tested for avian influenza virus (AIV). Of more than 9,400 birds sampled, AIV virus was isolated from 290 birds. Although Ruddy Turnstones (Arenaria interpres) comprised just 25% of birds sampled, they accounted for 87% of isolates. Only eight AIV isolations were made from birds at four locations outside of the Delaware Bay, USA, region; six of these were from gulls (Laridae). At Delaware Bay, AIV isolations were predominated by hemagglutinin (HA) subtype H10, but subtype diversity varied each year. These results suggest that AIV infection among shorebirds (Scolopacidae) may be localized, species specific, and highly variable in relation to AIV subtype diversity.

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Section: Discussionsupporting

confidence: 87%

Is the Occurrence of Avian Influenza Virus in Charadriiformes Species and Location Dependent?

Hanson

Luttrell

Goekjian

et al. 2008

Journal of Wildlife Diseases

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104

101

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“…The N1 subtype has been identified from wild birds relatively frequently, although the N2, N6, and N8 subtypes have been reported to be more common (9). Since the HA and NA subtypes are independent of each other, few viruses with the H5N1 combination have previously been isolated from wild birds in North America (19). Upon sequencing, several isolates which had been reported to be H5N1 (17) or either H5 or N1 based on serology (unpublished data), had to be excluded, as they turned out to be different HA or NA subtypes.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Low-Pathogenicity H5N1 Avian Influenza Viruses from North America

Spackman

Swayne

Suarez

et al. 2007

J Virol

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The H5 hemagglutinin (HA) subtype makes up less than 1% of the avian influenza (AI) virus isolates recovered in North America from wild aquatic birds (8, 22), which are major natural host reservoir species for type A influenza (18). However, H5 isolation rates from wild birds near 10% have been reported in recent surveys in Europe (13,32). Because of the recent outbreak of Asian-lineage H5N1 highly pathogenic AI (HPAI) in Asia, Europe, and Africa, which has been associated in some cases with wild-bird transmission, a greatly enhanced wild-bird surveillance program for H5 influenza has been conducted in Canada, the United States, and Mexico. Similarly, the Asian-lineage H5N1 HPAI virus has increased the focus on the N1 neuraminidase (NA) subtype, which is common in wild-bird species (7,9,16,22) and has been associated with several outbreaks in poultry (2) as well as being common in swine and human influenza A viruses.Understanding the genetic and biological characteristics of H5 viruses from wild birds can provide insight into the biology of the H5 HA, the ecology of AI virus, and the ability of wild birds to disseminate influenza viruses. Although much of the current attention to H5 is due to the Asian H5N1 HPAI virus and human health concerns, the H5 subtype has also been considered a priority in animal health for many years because it is one of the two HA subtypes (the other being H7) which can become HPAI in chickens and turkeys (28). Furthermore, because wild aquatic birds are a major reservoir for influenza A viruses and this reservoir has directly or indirectly been identified as a major source of AI viruses infecting poultry, further characterization of wild-bird-origin H5 AI viruses can provide insight into preventing future AIV outbreaks in poultry, understanding of which H5 wild-bird viruses are more likely to cross species barriers and infect poultry, and insight into the identification of optimal vaccine seed strains for use in poultry. Here the basic genetic, biological, and antigenic characteristics of wild-bird-origin AI virus isolates from North America with an H5 HA and/or N1 NA subtype are reported. MATERIALS AND METHODSViruses. North American viruses possessing either the H5 HA subtype or the N1 NA subtype (Table 1) were recovered from cloacal swabs collected from wild birds (primarily ducks) during monitoring programs in Canada and the United States. Samples were either screened with a real-time reverse transcriptase PCR

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“…Several studies have reported negative results for IAV detection in wood ducks, but most of these studies included fewer than 60 individuals (Rosenberger et al, 1974;Bahl et al, 1975;Webster et al, 1976;Kocan et al, 1979;Nettles et al, 1985;Hinshaw et al, 1986;Slemons et al, 1991). Three studies have attempted to isolate virus from more than 100 wood ducks, and two of these studies reported a low prevalence (less than 2.5%) of viral shedding compared to other dabbling duck species Goekjian et al, 2011;Wilcox et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Wood ducks (Aix sponsa) as potential reservoirs for avian influenza and avian paramyxoviruses

et al. 2015

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Influenza A viruses (IAVs) and avian paramyxoviruses (APMVs) are important pathogens of poultry worldwide, and both commonly occur in wild waterfowl, especially ducks in the family Anatidae. Although wood ducks (Aix sponsa) are members of the Anatidae, their behaviour differs from most other species in this family, which could affect the transmission of IAVs and APMVs. We collected cloacal and oropharyngeal swab and blood samples from more than 700 wood ducks across nine states in the eastern United States of America. No IAVs were isolated, and based on blocking enzyme-linked immunoassay ELISA results, antibodies to IAVs were only detected in 0.2% of samples. In contrast, 23 (3%) APMVs were isolated (22 Newcastle disease virus and 1 APMV-6), and antibodies to multiple serotypes of APMVs were detected in more than 60% of the samples. After-hatch-year birds were more likely to be antibody positive for APMV-4 and APMV-6 compared to hatch-year birds. Female birds were more likely to be antibody positive for APMV-4 than were male birds. Our results indicate that wood ducks are probably not an important host for IAV but are frequently infected with APMVs.

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Type A Influenza Viruses in Waterfowl in Ohio and Implications for Domestic Turkeys

Cited by 36 publications

References 12 publications

Is the Occurrence of Avian Influenza Virus in Charadriiformes Species and Location Dependent?

Is the Occurrence of Avian Influenza Virus in Charadriiformes Species and Location Dependent?

Characterization of Low-Pathogenicity H5N1 Avian Influenza Viruses from North America

Wood ducks (Aix sponsa) as potential reservoirs for avian influenza and avian paramyxoviruses

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