will the first frost kill the virus in the the yard?
no... it is a pain in the rear to get rid of. Extreme heat or cold do not kill it. I live in Arizona and it is RAMPANT here. Its horrible. You need to spray your entire yard down with a mixture of bleach and water. You will kill all of your grass etc... Its awful. I would not bring another puppy into the house period. An older dog whom is up to date on all vaccinations will be or should be fine. I cant stress how important it is to bleach everything you possibly can.