Will Falconer, DVM Moderator
Different strokes for different folks.
A group of long time homeopathic vets I met with decided years back that, parasites being more a physical challenge than an energetic one, 30C made the best sense. Dry or wet doses matter not a lick.
Parvo is almost exclusively a puppy disease. Older dogs will be more susceptible the more vaccines, pesticides, and kibble they've lived with throughout their lives.