Has anyone ever given their chickens Corid and it made their stool bloody? One of my birds tested positive for moderate coccidiosis and i was told to treat my whole flock. So i have and now they are having bloody stool and they were not before. I am on day 4 of 7 and I don't know what to do now. One of my 7 week old birds died today. They are the group that seems most affected. My older birds seem fine. Help please...