Can someone please help? I am now dealing with respiritory infection again for a third time and i cannot for the life of me figure out how they are getting it or where it is coming from. I keep their coop and run clean, fresh water, its ventilated, i can't see any signs of mould either. The forst time i lost my whole flock, i bleached and sterilised then after 8 month i got some more from a respected breeder then after 1 month they all had it again. I treated them and they got better for about 3 month with no signs then now all of a sudden they are all infected again. I just feel like giving it all up. Can someone please help?