Prevention is in the form of a vaccination shot. Puppies as young as six weeks, or as soon as they are weaned should have shots and subsequent shots every three weeks until they are 16 weeks old. Current medical recommendations state dogs should be subsequently vaccinated one time per year.

Any age dog can get Parvo but puppies are more likely to show signs of affliction because their immune system is weaker than older dogs.

Parvo is a virus that attacks any rapidly diving cells, in a dog that is the gut wall, bone marrow and the heart.

When the virus attacks a dogs' gut wall, they will bleed into their gut through the stomach lining and the virus will get into the blood stream. And often Parvo is fatal.

Symptoms of Parvo are lethargy, vomiting, bloody diarrhea, not eating or drinking. Parvo is transmitted through dogs only in fecal oral transmission.

For example, if an infected dog defecates, a fly or insect lands on the stool of an infected dog and flies to another dog's food that dog can become infected. Often dogs that are around other dogs can become infected, but they are not the only cases. Vaccine is the best prevention, You can't disinfect everything. You can't stop flies and bugs. Insects are not the only way it is transmitted.