I am new to Ball Pythons, not reptiles. I am having respiratory problems that seem to get better and then pop up again. I was wondering if one snake can be a carrier. I have treated (via reptile vet)with Fortaz then Baytril. They all are from 1 group of 8 snakes( I have 35). I have lost 2 already and am culturing now. These are the ones that came to me first together.None of the others seem to be affected yet. Humidity is high (70-80 %) in the rack system I disinfect both me and equipment between snakes. Any suggestions as to what more I can do or use to remedy this situations?