I understand. Milk is a great medium to grow bacteria. Bacteria growing in her crop caused the enteritis. I have to admit I was very tired (hadn't had any sleep since I took her to the vet) when the doctor called but I tried to write down what I could. Harriet is doing much better this morning. She has been eating and her poops are better, though still a little wet. I should be able to take her home today! When I pick her up I will ask the doctor to explain this all to me again and I will post a more comprehensive explanation.