wbvs58
Well-known member
Generally speaking, yes. The response should be immediate as they have the memory from previous dose. It may vary with some vaccines/diseases but generally should hold true.I wonder if one of our DVM's can tell us:
If a calf has been challenged ( vaccinated) and this initial vaccination is good for say at least 122 days, will that calf respond better when re-vaccinated at weaning (200 days +/-) than a calf that had not been vaccinated previously?
Ken