Parvovirus disease is currently the most common infectious disorder of dogs in the United States. 'Parvo' is a highly contagious disease characterized by diarrhea that is often charaterized by bloody and vomiting. 

How is Parvo Spread?
Parvovirus is spread through contact with feces containing the virus. The virus is known to survive on inanimate objects - such as clothing, food pans, and cage floors - for 5 months and longer in the right conditions. Insects and rodents may also serve as vectors playing an important role in the transmission of the disease. This means any fecal material or vomit needs to be removed with a detergent before the bleach solution is used. The bleach solution should be used on bedding, dishes, kennel floors and other impervious materials that may be contaminated.
The normal incubation period (time from exposure to the virus to the time when signs of disease appear) is from 7-14 days. Virus can be found in the feces several days before clinical signs of disease appear, and may last for one to two weeks after the onset of the disease.

What are symptoms of Parvo?
There is a broad range in the severity of symptoms shown by dogs that are infected with parvovirus. Many adult dogs exposed to the virus show very few, if any, symptoms. The majority of cases of disease are seen in dogs less than 6 months of age with the most severe cases seen in puppies younger than 12 weeks of age.