What it was Seminolewind, was putting the incubator hatched chicks with the hen. That is the opposite I was referring to. That's it, nothing else and it was only referring to something for the OP to try. No questioning of your methods, your expertise, or any other such thing. Just a chance for those eggs to hatch and then be immunized before unprotected exposure. The info I was trying to impart was being done on the fly. I have a lot going on here and very little time to take care of all of it and try to help here as well. When I saw what was being done, panic mode set in and the brain went into overdrive to try and find a solution. Hogster 'knows' there is something going on with her flock. It may not be Marek's, but on the off chance that it is, all I could think about was how best to solve the immediate problem. You, me and so many others have been blind sided with this, Deb had a chance to a 'do over' unlike the rest of us. If it came across as anything else my friend and mentor, I am truly sorry.