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Participation in Forum on August 8, 2018
Hi: IB Ma5 vaccine might not give good immune protection against a field strain of IBV if there is significant genetic difference. Do you know what filed strain of IBV infected the flock? If not phylogenetic sequencing might be advised to find what strain of IBV is present and proper vaccine should be administered. There are many strains of IBV and cross protection might be not present if vaccine ...
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Engormix
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