Pet Education

Browse our veterinary-reviewed Dog and Cat Illness Guide to learn more about pet health. Always talk to your veterinarian if you have a concern about your pet's symptoms or health.
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Canine Giardiasis

Giardiasis is an intestinal infection caused by Giardia - one-celled parasites - that invade the gastrointestinal tract and cause diarrhea.

Giardiasis can spread to humans.

CAUSES:

Giardias thrive in non-flowing water, such as ponds or lakes. They are transmitted to dogs in two ways:

  1. Drinking contaminated water
  2. Eating or sniffing contaminated ground

If your dog drinks contaminated water with giardia in the cyst stage, the cysts attach themselves to your dog's intestines and mature insideits body. Eventually your pet will pass the infective cysts in its stool.

Dogs that hunt prey such as birds and rabbits can also get the giardia parasites.

The disease is not fatal unless the dog's immune system is young or compromised. Therefore, if there are Giardia cysts in a healthy adult dog's stool, it is usually nothing to worry about. However, in puppies or elderly dogs, they may cause severe, and possibly fatal, diarrhea if not treated properly.

SIGNS:

DIAGNOSIS:

To diagnose giardiasis, your veterinarian may perform the following:

TREATMENT:

After diagnosing giardiasis, your veterinarian will do some or all of the following:

PREVENTION:

Giardiasis can affect humans. If your dog has Giardiasis, you must disinfect shared areas with bleach and practice good personal hygiene. It is also crucial to be extra careful when cleaning up after infected animals.

PROGNOSIS:

In most cases, your dog will recover successfully with proper care.

If not treated promptly in puppies, older dogs, and weak dogs, giardiasis may be fatal.

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