Local TV news and newspapers have noted an outbreak of the usually fatal canine parvo virus, particularly in the local (Michigan) cities of Pontiac and Inkster.
There are two types of canine parvo virus, which are spread dog-to-dog via contact with infected dog feces. The most common type of the virus is intestinal, and the most common symptoms are lethargy, fever, vomiting, and bloody stool. Death is quick (usually within several days), but painful and ugly. If you notice these symptoms in your dog, it's best to get it to a veterinarian or animal hospital quickly.
The virus usually affects dogs that have not been vaccinated against it (which would include puppies that are not yet old enough to have received all their vaccinations.
Please, follow-up on your pet's annual vaccinations! Also, it might be a good idea to keep puppies out of situations where they might encounter un-vaccinated dogs or their droppings.
Read the Detroit Free Press story Hundreds of dogs in Pontiac, Inkster dying in parvo outbreak.
UPDATE: September 13, 2009
Didi, over at La Ferme de Sourrou, is just recovering from a bout of canine parvo virus. Please check out the post Did Comes Home From The Vets' for details about symptoms, etc.