tetano
Editor, Senior Moderator
Avian Pathol. 2015 Feb 19:1-24. [Epub ahead of print]
[h=1]Wood ducks (Aix sponsa) as potential reservoirs for avian influenza and avian paramyxoviruses.[/h] Kistler WM[SUP]1[/SUP], Gibbs SE, Stallknecht DE, Yabsley MJ.
[h=3]Author information[/h]
[h=3]Abstract[/h] 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 behavior 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 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 one 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.
PMID: 25695149 [PubMed - as supplied by publisher]
[h=1]Wood ducks (Aix sponsa) as potential reservoirs for avian influenza and avian paramyxoviruses.[/h] Kistler WM[SUP]1[/SUP], Gibbs SE, Stallknecht DE, Yabsley MJ.
[h=3]Author information[/h]
[h=3]Abstract[/h] 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 behavior 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 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 one 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.
PMID: 25695149 [PubMed - as supplied by publisher]