Most of my chickens came from a local feedstore which orders from Ideal. When the feedstore orders them, does it have the hatchery vaccinate them? I am going to order directly from Ideal, and I am planning not to vaccinate, but if my flock from the feedstore have been vaccinated, should I? One of my roosters was hatched in an incubator and is not vaccinated, and he has never gotten sick from the others, so I am wondering.