Mareks vaccine question?

[BenjaminReed]

i currently have three hens, one I know wasn’t vaccinated and the other two I do not know one way or the other. I just bought two hens that were vaccinated, and are currently in quarantine. Is it safe to add the vaccinated hens to my unvaccinated three?

 

[dheltzel]

Yes, that is fine.

 

[Lolacan]

I would quarantine at least 3 weeks to give the vaccine time to build the antibodies needed.

 

[BenjaminReed]

Just to clarify, the new hens that were vaccinated are about 9 months old and they were vaccinated at birth.

 

[Lolacan]

That's fine. I do tend to reiterate that Marek's vaccinated chicks need to be quarantined for at least 3 weeks to give their antibodies time to increase.