Thank you so much. Would I be able to vaccinate future birds myself or would I need to go to a vet?
I order vaccinated chicks from hatcheries or do it myself. It's very easy if you can do it. Then quarantine for a few weeks to give the vaccine time to work. I've had super good success with vaccinating my own. It also means there is life after Marek's. But chickens should not leave your property. But fertile eggs can.