We also have had a few cases in the last couple of weeks which have been confirmed parvo- all in vaccinated dogs, 3 of which have died

. Having spoken to a few other practices this week, it seems it is quite widespread across the country- again in vaccinated dogs.
When treating parvo, time really is key. If your dog has vomiting and diarrhoea, you should call your vet for their advice as they will know if there are 24hr bugs around in your area and also if they have seen parvo recently.
If in doubt, your dog is lethargic, or is vomiting and passing diarrhoea with dark blood in it, be safe and get them checked.
Further info :
http://www.future-of-vaccination.co.uk/canine-parvovirus-disease.asp