Signs a few hours before the dog's death include poor energy, trembling and convulsions, fever, vomiting, diarrhea, blood in the stool, etc. If it is myocarditis type, the dog will die suddenly. The cure rate for minor cases is relatively high and requires symptomatic treatment. Generally, 3 to 5 days is when the condition is most serious and when it is most likely to die. If the dog persists, it will begin to get better, so special attention is needed. .