I have a young hen who's only about 3 months old who I suspect has cocci. I found her in the coop with all the others looking very lethargic and wouldn't even pick her head up. I brought her inside and found that her vent had bloody stool on it, and I suspected from these symptoms that she has cocci. She is a white-crested black polish, and one of her sisters just died a few days ago, and I now believe of the same thing. I am going to get some corid today to treat her, but she won't eat or drink anything so I didn't know if there's anyway to get it into her or save her or if she's too far gone. The symptoms just appeared today, but I'm afraid she could have had this for a longer time without me noticing. Also, I want to make sure the rest of my flock doesn't get it, and didn't know if I should treat them all, and if I needed to bleach their coop or disinfect it in case there was anything on the floor, or if that wouldn't help? Any help would be great, thanks!