Last weekend there was a big thing about a dog that attended a KC agility show that then the next day came down with Parvo. ( the dog is doing a lot better now) The KC did ask everybody that attended the show not to attend any shows for the next three weeks.

I just had a text from my friend asking if Parvo is going around. Her older dog came down with sickness and bloody diarrhoea last week and she said there were 3 other dogs at the vets with the same thing. This evening her younger dog is also starting to be unwell.
My Question is can the vet tell the difference between Parvo and a really nasty bloody gastro bug as I believe Parvo has the same symptoms.