What are Giardia?
Giardia are sometimes confused with worms because they invade the gastrointestinal tract and can cause diarrhea. They are not worms; instead, they are one-celled parasites classified as protozoa. Most dogs that are infected with Giardia do not have diarrhea or any other signs of illness. When the eggs (cysts) are found in the stool of a dog without diarrhea, they are generally considered a transient, insignificant finding. In puppies and debilitated adult dogs, they may cause severe, watery diarrhea that may be fatal. How did my dog get Giardia? A dog becomes infected with Giardia when he swallows the cyst stage of the parasite. Once inside the dog’s intestine, the cyst goes through several stages of maturation. Eventually, the dog is able to pass infective cysts in the stool. These cysts lie in the environment and can infect other dogs. They may also be transmitted through drinking infected water. How is giardiasis diagnosed? Giardiasis is diagnosed by performing a microscopic examina
