Here's my problem... My flock of chickens tested positive for Coccidiosis. I treated them twice and the vet says they should build up an immunity to the disease but it will remain in my coop and ground no matter how much I clean. I have 7 babies that will be introduced to the flock in 2 weeks. Should I treat the babies with a round of the medication before I put them in the coop? My vet says not to but I know that they will be exposed and if I wait I will have to treat the original flock for a third time (separating them once I mix them will be nearly impossible and I won't be able to only treat the babies later on). Will it hurt the babies to treat them? The medication actually says not to give to birds OVER 17 weeks of age... but all of the ones I've treated WERE over 17 weeks. I treated them based on request from my vet.