Goose Parvovirus and Circovirus Coinfections in Ornamental Ducks
| Autor: | Dorrestein M. Gerry, Peter Wencel, Kristin Heenemann, Mohammed Y. Halami, Stanisław Tokarzewski, Awad A. Shehata, Thomas W. Vahlenkamp |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Circovirus medicine.medical_specialty animal structures 040301 veterinary sciences viruses Biology medicine.disease_cause Pallor 0403 veterinary science Parvoviridae Infections 03 medical and health sciences Pericarditis Food Animals Ascites medicine Animals Bursa of Fabricius Circoviridae Infections General Immunology and Microbiology Bird Diseases Coinfection virus diseases 04 agricultural and veterinary sciences Pets Sequence Analysis DNA Dependovirus medicine.disease biology.organism_classification Virology Influenza A virus subtype H5N1 030104 developmental biology Ducks Animal Science and Zoology Histopathology Poland medicine.symptom |
| Zdroj: | Avian diseases. 60(2) |
| ISSN: | 1938-4351 |
| Popis: | Clinical observations and diagnostic procedures carried out to elucidate the cause of high mortality in 2-8-wk-old ornamental ducks (mandarin, wood, falcated, and silver teal ducks) are described. At necropsy, ducklings showed general pallor of skeletal and heart muscles, subcutaneous gelatinous transudates, pericarditis, ascites, and severe edema and hyperemia of lungs. Histopathologic examination revealed that the most important changes were located in the crop, bursa of Fabricius, and lungs with presence of amorphic basic intracytoplasmic inclusions. No bacteria or fungi could be detected from affected organs and ascitic fluid. Viral diagnosis included molecular detection for the presence of goose parvovirus (GPV), circovirus, avian influenza, herpesviruses, paramyxovirus, reovirus, and polyomavirus. Both GPV and circovirus could be detected by real-time PCR and nested broad-spectrum PCR, respectively. Phylogenetically, full-length nucleotide sequence of GPV showed a close similarity ranging from 95.6% to 97.9% with European and Asian pathogenic GPV. On the other hand, the detected circovirus showed nucleotide identity of 90% to 98% with goose circoviruses (GoCVs). This is the first report of GoCVs and GPV in ornamental ducks. The concurrence of GPV and GoCV infections is thought to contribute to the high mortality. |
| Databáze: | OpenAIRE |
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