I lost two 3 year old white rock hens this past fall and now have another who is on the verge. I took her to the vet the other day and she was diagnosed wtih coccidiosis so I now have her and the rest of the flock on sulfadimethoxine in their water. The vet said to treat them for 3 weeks. So my questions now are in regard to my future with chickens. I have chickens for one reason - egg production. If they are on antibiotics I will not be eating the eggs. From what I have read regarding coccidiosis oocysts living in soil, I am concerned that my chickens will be continually exposed even after they have been treated and so will become infected and have to be treated again. I am also concerned that if I get new chickens to replace the ones who died, that they will in turn become infected as well. My chickens' coop and pen is adjacent to my garden where the chickens have been allowed to free range while no crops are growing. This means they have also been pooping in the soil there. When I have crops, they free range in the backyard meaning the coccidiosis is probably spread all throughout my property. I have also tilled their droppings and litter into my garden beds for fertilizer. Do I now have to be concerned that my kids or myself can become infected with coccidiosis from the products we grow in our garden? I feel as though my whole farm has been infected with this organism now. Am I overreacting? Can I continue to raise anitbiotic-free, free-range chickens? Can I safely eat what I grow in my garden? Is there any way to sterilize the coop and the soil? We love our chickens and my daughter wants to continue showing them with 4-H at the fair, possibly even expand our flock to include show birds, but it is too hard on her when we loose them! Any help or suggestions, PLEASE?!?