Ok, I have searched and searched and can find no reference to folks just letting their chickens cure themselves of this thing. I'm just trying to get an alternative to treating with antibiotics so here is the deal. I have two sets of chicks from two different breeders, one group is 8 weeks and one is five weeks. They all have had bloody stools for a few days at different times. Seems to be working it's way through both groups. None of them are showing any other signs of being sick and are eating and drinking normally. This has been going on for two weeks now and I suppose each of them will get it and then clear it from their systems and become immune. I realize that I may lose one or two but my thought is that the ones that survive will become immune at least to this strain and that is a good thing. I have been giving them chick probiotics and vitamins in their water and organic chick starter crumbles. Has anyone tried this? Thoughts? I realize most of you will say treat them asap but I am more interested in thoughts about NOT treating. Thanks.