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1 June 2010 Detection of Influenza A Viruses in Eggs Laid by Infected Turkeys
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Abstract

Studies are limited on evaluating the potential of influenza viruses for egg-borne dissemination. In our previous studies, experimental infection of breeder turkeys with A/turkey/Ohio/313053/04 resulted in drastic declines in egg production, and we confirmed high levels of virus replication and an abundant distribution of avian-specific α2,3 sialic acid-gal receptors in the oviduct of these turkeys. In the present study, following experimental inoculation of A/turkey/Ohio/313053/04 in breeder turkeys, we detected these viruses in the albumin of eggs using real-time RT-PCR (RRT-PCR) and virus isolation in embryonated chicken eggs. Swabs from egg shells were also found positive by RRT-PCR. This is the first report of the detection of low pathogenic influenza viruses from internal egg contents following experimental infection. The possibility of hatchery contamination by egg-borne influenza viruses, and the spread of virus during movement of contaminated cracked eggs and egg flats, pose concerns regarding viral dissemination of influenza.

S. P. S. Pillai, Y. M. Saif, and C. W. Lee "Detection of Influenza A Viruses in Eggs Laid by Infected Turkeys," Avian Diseases 54(2), 830-833, (1 June 2010). https://doi.org/10.1637/9102-101209-Reg.1
Received: 12 October 2009; Accepted: 1 December 2009; Published: 1 June 2010
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