Hi everyone, Well, the lab results are in. Boomer and Buster showed "heavy growth" of E. coli and Snookie a "heavy growth" of pseudomonas. We are treating with a 10mg/ml suspension of enrofloxacin for the next 10 days. It's nice to finally know what my guys have. Boomer has lost more than 1/2 pound but has been slowly gaining weight recently. I'm still at a loss as to how they got it. I hate not having answers!! :-) It occured to me that at about the same time the diarrhea showed up, the guys had been eating from a bowl in which I had put a couple sample packs of a different kind of food. I wonder if the food had been contaminated. My vet says that E. coli occurs naturally in the intestines (just which part of the digestive tract, I can't remember) and that stress, either good or bad, can cause a "growth spurt" of the bacteria and can lead to the infection of the other ferrets via fecal/oral transmission. I will visit the pet store where I got the sample packs and see if any other animals have gotten sick. As usual, if any of you have any questions/comments/suggestions, please contact me. -Mark Zmyewski Huntsville, Alabama [Posted in FML issue 1743]