My daughter has a dog who just fought through parvo. My question is if she could bring the virus to my dogs on her clothing or shoes, and if she can, how long before it is safe for her to come to my house without infecting my puppy? I went to her house once, and when I came home, I washed the bottoms of my shoes with bleach. So far, my dog has not gotten sick. Is this sufficient when my daughter visits my house?