Hi all. I am getting 18 hatching eggs in a few weeks. I would love to vaccinate the new chicks for Marek's, but I am having trouble finding small quantities of the vaccine. 1000 doses is the smallest I have been able to find. Has anyone found it in smaller doses? I've seen some posts where people have divided the 1000 dose in half. That is not something I am comfortable doing. Also, I noticed on the instructions for the 1000 dose, that you are supposed to burn all unused vaccine and all containers. Has anyone actually done that? What have you done with it if you didn't burn it? If this subject has already been discussed to death, I apologize that it didn't manage to stumble across it. Thanks, R.