Help! Coccidiosis fecal tested by vet. confirmed! first treatment was for five days with Corid / also cleaned their pen out . They still have loose stools no blood. retested confirmed again - six days later my chickens still have Coccidiosis the vet said it will never really go away???! I don't beleave it.I really need some advice, do to the reinfestation aspect of this parasite. my chicks are four weeks old and some are six months old and some are almost two yrs. They all have it of course since it is very contagious. The vet recommend same treatment Corid for five days or food that is medicated all the time or new treatment of squirting some medication in to each chickens mouth( which costs quite a bit of money.) The money really isn't the real problem for me. its the fact this stuff won't really go away! the vet could not recommend any disinfectant to clean their inside pen except bleach water and nothing for their dirt floor outside pen. I usally let them free range all day on our ten acres i AM REALLY AT A LOSS!