My daughters puppy just had parvo virus 3 weeks ago, was wondering if she (puppy) can bring it to my house? I have 2 dogs one is 15 yrs old the other is for the 15 yr old is current with his shots but the 4 yr old is not, because when I took him to the vet last he got nuetered and they would not give him shots also. And have not gotten back over there to get his shots current. Does her puppy still carry the virus? Thanks