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Contact-Free Co-Culture Model for the Study of Innate Immune Cell Activation During Respiratory Virus Infection
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Co-circulation of four types of infectious bronchitis virus (793/B, 624/I, B1648 and Massachusetts)

I Capua1, Z Minta2, E Karpinska3

  • 1a Istituto Zooprofilattico delle Venezie , Via Romea 14/A, Legnaro , Padova , 35020 , Italy.

Avian Pathology : Journal of the W.V.P.A
|June 9, 2016
PubMed

Eighteen isolates of infectious bronchitis virus (IBV) from Italy and Poland in 1997 to 1998 were comprehensively analysed by serum haemagglutination inhibition and virus neutralization tests, and by type-specific polymerase chain reactions and spike protein S1 gene sequencing. Four types of IBV (793/B, 624/I, B1648 and Massachusetts) were detected in Italy, while the presence of 793/B was confirmed in Poland. This showed that not only were four types of IBV co-existing within a single year, but also that several types of IBV have persisted in Europe for many years (at least 13 to 14 years for types B1648 and 793/B). Sequencing of the S1 gene of the 624/I isolate confirmed this as a unique type of IBV.

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