It is NOT a new form of Parvo although symptoms are quite similar to parvo. Crud dogs do not have a high temperature, nor will they have intestinal lesions. Any one of the normal bacteria found in the digestive tract will go into overgrowth. The mystery is what triggers it. And of course we know the end results with a dog that dies of it.
Dogs are alert, hungry, energetic.
Normal feces starts with mucus sheath, continues to get progressively softer until becomes explosive diarrhea. Vomiting may or may not accompany. Dogs dehydrate at an astounding rate. The younger or weaker the dog, the worse it is. Some dogs may never get it, even tho they may be kenneled with an afflicted dog.