I've done so well, recently, with having healthy chicks...now it seems like everywhere I turn, someone is having issues. I have 1/2 dozen with some sort of neurological something or other going on that I'm treating w/Poly Vi Sol. I've had to pull several chicks with a URI that I've treated in isolation but they didn't make it. Don't know where the URI came from. I have one with a cross beak that looks ridiculous; I've tried to fix it, with no luck, and it's thriving, so I won't cull it yet. Then there are the ones that have just "failed to thrive" and passed away without really looking sick at all. Just kind of a bummer.