Also, until your puppy has had all of his/her vaccinations, please do not take him/her to places that other dogs frequent, i.e: Dog Parks, Petco, Pet Smart and the like, or any where else that other dogs tend to be. Going to a friend's house should be okay, as long as you make sure that their dogs have all had their vaccinations. If a puppy contracts the Parvo-virus (and a few other viruses out there) he/she will likely die. Even with sometimes thousands of dollars in vet bills involved. Occasionally one may be saved, but he/she likely will never be the same as it can effect his/her heart and possibly other organs. BETTER SAFE THAN SORRY.