I just had my second hen die from Cocci yesterday. The other one was last month, and I also had a young pullet die last month as well. I noticed most of my flock had signs of it, I treated everyone with Sulmet, and everyone got better except the two last month. Then a few days ago one of my RIR girls randomly got sick. It was coccidia for sure. I put her in a separate pin and put Sulmet in her water but she died anyway. It has been a VERY VERY wet and rainy summer for us. Their pens stay wet most of the time. What do I do???? I read that there are SEVEN (is this number correct?) different strands of coccidia for chickens. I am so worried about the rest of them now. Though, everyone else is completely fine for now, she was the only one acting sick. We are currently building a new coop and run for the whole flock. I am considering putting gutters around the coop and trenches around the run.