I wonder if there was a different Marek's strain, Seminole. And is there any way to test for how well the vaccine has taken, like we can check titers for ourselves?
This makes me worried, as I paid my nice $ for supercooled transport of my vaccine from Alabama and went through the trauma of...
As far as I know, none of the feed stores get vaccinated chicks. Not everyone wants it, and while it's inexpensive overall it would probably eat into their profit margin.