I have been treating my chickens for coccidiosis for the last 3 weeks. I do not have a clue how they got it and I lost almost my entire original 8 chickens to it.....I only have 8 chickens and they free range almost every day even in winter. Everything I have read about treating cocci states keeping the coop clean. How clean?? I clean it thoroughly twice a year spring and fall and add fresh straw in between. These are chickens, they poop everywhere! Am I expected to clean the coop weekly/daily? They are, for all intents and purposes, only in the coop at night. If anyone has an answer to this dilema it would be much appreciated.