3cats-
I'm sorry this happened to you, but I think bad reactions to the Purevax are relatively uncommon:(http://www.ema.europa.eu/docs/en_GB/document_library/EPAR_-_Public_assessment_report/veterinary/002003/WC500104118.pdf)
That said, my sweet baby, Epi, was taken in January 29th for spay...
