Evaluation of unintended 1/96 infectious bronchitis vaccine transmission in broilers after direct contact with vaccinated ones
Published on: 10/23/2019
Author/s : E. Pellattiero 1, C.M. Tucciarone 1, G. Franzo 1, G. Berto 2, K. Koutoulis 3, A. Meini 2, C. Zangrandi 2, G. Ramon 3, M. Drigo 1, M. Cecchinato 1. / 1 Department of Animal Medicine, Production and Health (MAPS), University of Padua, Legnaro, Italy; 2 Ceva Salute Animale, Agrate Brianza, Italy; 3 Ceva Sante Animale, Libourne, France.
Infectious bronchitis (IB) was described in the USA for the first time as a respiratory disease of chickens. Its aetiological agent was isolated in 1936 and then identified as a Gammacoronavirus, namely infectious bronchitis virus (IBV) (Cook et al. 2012). Being a single-stranded RNA virus, IBV is highly susceptible to spontaneous mutation and genetic recombination, meaning that a large number of ...