I have a group of chicks, about 2 months old that just won't get un sick. I believe they had coccidiosis, so I gave them corid for a week while giving them yogurt. Now I haven't seen bloody feces so I think we got over that. Now ever since then, after already losing around 4 chicks, I lose one a week almost. They stop growing it seems, just stay in poofy balls and look pale. I've tried giving them vitamins, yogurt, fresh bedding almost daily, nothing seems to be working. In his group I have buff orpingtons, light Sussex, and two black copper Marians. The light Sussex seem to have gotten somewhat better, same with the marans, the Sussex still fluff up and stay hunched up sometimes. My question is, other than what's wrong with them, is should I take the risk and move the birds that seem to be better out of there and put them with my older flock that is currently non sick? I know it seems obvious not to, but I have some older hens that jump in with the babies already and nothing seems to have spread from them going in and out. Any advice or what to do will be great, I'm going to be going in vacation for a week and its to the point where I just don't even want to go, just leaving my babies like this and for the babysitter to inherit these problems for a whole week.