Sorry to hear the news. Last year my BP got an RI and she stayed in the same freedom breeder rack as other BP's and no one else got anything. One difference was my vet made me lower my humidity and felt that the humidity may(not definately) have led to the original infection. I kept the temps up but kept everything drier. I just followed Dr.'s orders and it worked fine for me, he told me 60% humidity was to high for her and to get it to 40%or 50%max. After the injections she completely cleared up within a week! Good luck with your babies!