GOOD THREAD KYM!! That is why when people post loose stools, we say call the vet.. Time is of the essence with both of them.
There is more information that warns that the dog flu can weaken the immune system- and although a dog tests positive for parvo, it could also have the flu. Its vital for the vets to give a full spectrum antibiotic just in case of which triggered which..
The dog flu doesnt lay in the environment- unless its a kennel like parvo does- but at this point- they are not sure how it is spread.. I NEVER EVER use common grounds to let my dogs relieve themselves- even at shows- . We stop before the show and walk the dogs- but I grew up with the parvo epidemic in the 80's and paranoid..