To Marek’s vaccinate or not, this is my current question

[aldarita]

@aldarita ... Vaccinated chicks from the hatchery would need to be quarantined also?

Yes of course. Vaccinated chicks always have to be quarantine regardless of where they were hatched

 

[Cinnamon Roll]

If you don’t have Mareks in your flock, I don’t think there would be a reason to quarantine vaccinated chicks from the flock. I vaccinate as a precaution and my chicks stay with their vaccinated broody hens the whole time.

If you did have Mareks, or suspected it, then a quarantine period would make sense.

 

[miguela44]

https://www.pbs.org/newshour/science/tthis-chicken-vaccine-makes-virus-dangerous

"Chickens vaccinated against Marek’s disease rarely get sick. But the vaccine does not prevent them from spreading Marek’s to unvaccinated birds.

"In fact, rather than stop fowl from spreading the virus, the vaccine allows the disease to spread faster and longer than it normally would, a new study finds."