I came home from an overnight stay away to find my one and a half year-old Rhode Island red with green and yellow diarrhea. Her comb is swollen and flopped over abnormally. she is struggling to breathe. She also has lots of saliva coming from her mouth. I have her in a quarantine cage away from the rest of my flock as well as my two month old babies. From what I understand there’s not much I can do to help her? In addition to that is it possible she’s could have spread it to the rest of the flock or possibly my babies how can I stop this? Help!!!