Prayers and with you and Madda.
Take a look at this article, it may be Campy rather than parvo and needs different treatment. I did save an entire litter (but one) from Parvo by just force feeding Pedialyte every hour around the clock. With parvo they usually will not eat or drink anything, but with Campy they still eat and drink, sometimes even have a ravenous appetite.
http://www.megabucksranch.com/Show_crud.htm