I live on Vancouver Island in Canada and can not find corid anywhere. My research says this is pretty much the only thing that can help cure my chickens. No vet that I have called has any. I have been in a panic the last two days because my pullets are sick with coccidiosis and I have already lost 4. I am isolating, giving them ACV and herbs in their water, liquid vitamin supplements. I have diacemeatous earth I have tried adding to their food. I have completely cleaned and disinfected their house. They have been on medicated chick starter from the beginning. I have ordered corid from Amazon but it will not be here for a month. I have never in all my chicken years had this run through my coop and I am at a loss. Any advice is welcome.