More than likely your pup had parvo when you got her. Parvo virus can last 6 months, so disinfecting your home and areas the pup has been is important. YOu might ask your vet, but we were told that a solution of bleach will kill the virus. (We adopted a dog from the shelter that had parvo, unbeknownst to us).
Father God, thank you that this virus has been dealt with 2000 years ago. In the name of Jesus, we command this parvo virus to be destroyed in the healing light of God. Let your glory life be zapped into this virus and cut it off at the roots, never to infect another dog of this family, in Jesus name. Amen.
Thank you Lord.