I am so sorry you are going through this. Parvo is scary. I hope your little one pulls through.
Please take advantage of the time she is at the vets and clean everything she came near, including floors, toys, bedding, even your shoes, to prevent a reinfection.
Parvovirus | ASPCA Dog Parvovirus Symptoms, Treatments, and Causes
Once your baby is well, please concentrate on going after that horrible breeder! And pease keep us updated on your little one.