In another post I mentioned that I was beginning to see blood in my 12 week old pullets poop. I am going to begin Sulmet treatment. I have been researching cocci, which I see is in the soil. Here is our situation. We moved 7 week old chicks into the brand new coop and they were allowed to free range around our yard/driveway on occasion. They are now 12 weeks old and we just finished the run this weekend and allowed them into it on Sunday. Does this mean that this area is "infected"? If we treat for cocci is it just going to come back again? Or is the idea that they will build a resistance to it? Can people catch this...I noticed that they are dustbathing in the dirt of the run and I am sure poo as well. Just worried about concerns if my children hold them. Thanks...new to chickens and just trying to get things figured out.