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EnglishA virus was isolated in association with respiratory disease typical of turkey rhinotracheitis, from turkeys which had been vaccinated with a B subtype Avian Metapneumovirus (AMPV) vaccine. Sequencing of the virus showed that, as in a previous similar report, the virus had originated from a live A subtype vaccine. In this instance the disease was much later, at 50 days of age, and there had been no recent history of use of the vaccine. This may indicate that AMPV vaccines are able to circulate in the environment for longer than was previously envisaged
| Titolo: | Turkey rhinotracheitis outbreak in 7 week old turkeys caused by a vaccine derived AMPV | |
| Autore/i: | RICCHIZZI, ENRICO; CATELLI, ELENA; CECCHINATO M.; LUPINI, CATERINA; BROWN P.; NAYLOR C. J. | |
| Autore/i Unibo: | ||
| Anno: | 2009 | |
| Titolo del libro: | Proceedings of the VI International Symposium on Avian Corona- and Pneumoviruses and Complicating Pathogens | |
| Pagina iniziale: | 260 | |
| Pagina finale: | 264 | |
| Abstract: | A virus was isolated in association with respiratory disease typical of turkey rhinotracheitis, from turkeys which had been vaccinated with a B subtype Avian Metapneumovirus (AMPV) vaccine. Sequencing of the virus showed that, as in a previous similar report, the virus had originated from a live A subtype vaccine. In this instance the disease was much later, at 50 days of age, and there had been no recent history of use of the vaccine. This may indicate that AMPV vaccines are able to circulate in the environment for longer than was previously envisaged | |
| Data prodotto definitivo in UGOV: | 26-feb-2010 | |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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