Infectious Bronchitis Virus (IBV). Prof. Dr. H. M. Hafez (Free University Berlin)

than you very much i have one question about IB QX strain what about Qx Strain Vaccination Now in Broiler

How to control secondary colibacillosis after IB, Became more of an issue than the IB itself. I am Badly Suffering due to secondary infection this 4th broiler flock hit by IB .IB is cure but secondary colibacillosis make my bird more crazy SPECIALLY Suffering due to e-coli and bird reduce the feed intake Please advise me how to treat bird Regard rao aftab 923036668272 raoaftab@gmail.com

Thank you our prof Hafez on wonderful and collective presentation I`d like to ask you, Are all IBVs Infection in young age lead to False layer or certain strains?