i stand by everything i said. if they were my chicks i would kill them and start over. why risk spreading a highly contagious disease in your yard when you can prevent it? thats like having dogs and bring another dog with parvo home. Not all coccidia is species specific. i had a great website explaining about coccidia but my phone is acting up and wont let me post it. i gave advice based on my own experiences and what i would do. i have to much money tied up in my dogs and chickens to knowingly let diseases spread. if you don't like what I have to say, you don't have to listen.