Hi Renae,
I’m sorry to hear your dog was exposed to parvovirus. I have not personally used the Spectra 10 but I would be concerned about using it with that many antigens present and potential immunosuppression due to the modified live component of the vaccine. I would recommend a visit to a veterinarian to have a parvo test done prior to vaccination and utilize their expertise in terms of using a trusted and safe vaccine they are familiar with.
Best of luck,
Dr. Ryan Llera