Giardia and Pets | Giardia | Parasites (2024)

Giardia and Pets | Giardia | Parasites (1)

Dog and cat stool (poop) can contain Giardia germs and may make people sick even when the pet appears healthy. Symptoms of Giardia infection in both people and pets can include diarrhea, gas, abdominal discomfort, nausea, and vomiting. It is possible to be infected and have no signs or symptoms of illness.

Can I get Giardia infection from my pet?

The chances of people getting Giardia infection from dogs or cats are low. The type of Giardia that infects humans is not usually the same type that infects dogs and cats.

If you own other household or exotic pets, contact your veterinarian for more information. Some strains of Giardia can be shared between humans and animals, including chinchillas, beavers, birds, opossums, and monkeys.

How is Giardia spread?

Anything that touches poop from infected humans or animals can be contaminated with Giardia germs. People and animals become infected when they swallow Giardia germs.

How does my dog or cat get infected with Giardia?

Your dog or cat might get infected by:

  • Being in contact with infected poop from another dog or cat
  • Rolling and playing in contaminated soil
  • Licking its body after contact with a contaminated surface (for example, a dirty litter box or dog cage or crate)
  • Drinking water from a contaminated creek, pond, or other body of water

Young pets, like puppies and kittens, have a higher risk of illness than adult dogs and cats.

How do I protect myself if my dog or cat has a Giardia infection?

The chances of getting sick with a Giardia infection from your dog or cat are small. However, there are some steps you can take to minimize your exposure to Giardia if you have dogs or cats:

  • Wear gloves when gardening to reduce the risk of coming into contact with infected poop or soil.
  • Clean and disinfect household surfaces regularly, and especially areas or supplies that your pet uses such as toys, bedding, and water and food bowls.
  • Wash hands with soap and water for at least 20 seconds, especially after touching your pets, their food or treats, their poop, or their supplies.

If my pet has a Giardia infection, how do I clean and disinfect my house?

Visit the Clean and Disinfect section on the Prevention and Control page for the steps to take.

How do I reduce the amount of Giardia in my yard or outdoor environment?

Giardia is hard to eliminate from the environment, but there are things you can do to lower the chances of your pet getting sick again, and to help you and your family stay healthy:

  • Always remove poop from your yard or other outdoor areas by using a bag and throwing it away.
  • Change cat litterboxes daily.
  • Limit pets’ access to common outdoor spaces, such as dog parks or public trails, as much as possible if they have diarrhea or are being treated for Giardia.
  • Remove standing water (for example, empty any containers of water and remove any water from fountains that are not in use).
  • Do not use bleach or quaternary ammonium compounds in your soil or grass area, as they will not work.
  • Do not allow any new animals, especially young ones, to enter the yard or other outdoor space until advised by your veterinarian.

How long does Giardia survive in the environment?

  • Giardia can survive for several months in cold water or soil.
  • Giardia can survive much longer in soil at colder temperatures than at room temperature.
  • Giardia can survive longer in water at colder temperatures (for example, lake or puddle water during the winter, refrigerated water) than at warmer temperatures (for example, tap water, river or puddle water during the summer or fall).
  • Giardia survives much longer in moist, cool environments than in dry, warm environments that have direct sunlight.

How often and for how long should I clean and disinfect my home after my dog or cat is diagnosed with Giardia infection?

  • Clean and disinfect potentially contaminated items (for example, toys, water bowls and food bowls, pet bedding, floors, dog crates, linens, towels, litter box) regularly for as long as your pet is sick.
  • If your pet is taking medication, clean and disinfect potentially contaminated items frequently (daily if possible) until a few days after the last dose of medication is given.
  • Giardia survival depends on many factors, so we recommend that you consult your veterinarian for further advice.

How do I prevent my dog or cat from getting re-infected, or getting my other pets sick, during treatment?

  • If you have other dogs or cats, make sure you tell your veterinarian, even if they are not showing signs of diarrhea. Other pets may also be started on medication, depending on the situation. Even animals without visible signs of Giardia infection may be infected and shedding Giardia into the environment.
  • Bathe all household pets with pet shampoo following medical treatment to ensure no poop is in the pet’s coat.
  • Clean dogs’ and cats’ environment (for example, holding areas, floors, crates) and wash water bowls daily with soap and water. Clean cages, habitats, and supplies outside the home when possible to avoid contaminating surfaces. If that is not possible, clean them in a laundry sink or bathtub and then disinfect that area immediately afterward. See the Clean and Disinfect section on the Prevention and Control page for more information.
  • Limit your dog’s access to creeks, ponds, lakes, and other waterbodies to avoid re-infecting your animal and contaminating the water, which could make other animals sick.

How do I treat my pet for Giardia infection?

  • If your pet has diarrhea that is not going away, seek veterinary care. Diarrhea has different causes and could result in dehydration or other serious problems.
  • Diagnosis and treatment of Giardia infection must be done by a licensed veterinarian.
  • No approved over-the-counter treatment is available for Giardia infection.
  • Giardia can be passed in poop intermittently, and an animal may appear healthy or without signs of disease before it stops passing Giardia. Repeated poop tests may be necessary.
  • Follow your veterinarian’s recommendations and take your pet to all follow-up appointments.
Giardia and Pets | Giardia | Parasites (2024)

FAQs

Giardia and Pets | Giardia | Parasites? ›

Giardia can also be spread easily between pets living in the same household. If you have one dog who becomes infected, chances are good your other dogs will quickly pick up this parasite as well. It can be spread through licking, playing, sharing food bowls, sharing water, and even just walking in the same areas.

Is Giardia contagious between pets? ›

Giardia can also be spread easily between pets living in the same household. If you have one dog who becomes infected, chances are good your other dogs will quickly pick up this parasite as well. It can be spread through licking, playing, sharing food bowls, sharing water, and even just walking in the same areas.

Can my dog lick me with Giardia? ›

Giardia is found in dogs, cats, and most wild animals (e.g., ducks, geese, raccoons, squirrels). It can also be transmitted to humans (letting an affected dog lick your face), so it's important that everyone in the family follow safety precautions.

What are the symptoms of Giardia in pets? ›

Giardia infection in dogs may lead to weight loss, chronic intermittent diarrhea, and fatty stool. The stool may range from soft to watery, often has a greenish tinge, and occasionally contains blood. Infected dogs tend to have excess mucus in their feces. Vomiting may occur in some cases.

Can my dog pass Giardia to my cat? ›

Giardia is transmitted when an animal ingests cysts shed by infected animals or humans. These cysts are acquired from fecal-contaminated water, food, or inanimate objects. Dog strains of Giardia are not known to infect cats, and cat strains are not known to infect dogs. In most cases the infection goes away on its own.

How do I disinfect my house from Giardia? ›

Disinfection
  1. Clean the area or item with soap and water or another detergent if it is dirty. Then, use a household disinfectant.
  2. Follow the instructions on the label to ensure safe and effective use of the product.
  3. Many products recommend: Keeping surfaces wet for a period of time (see product label).

Can I bring my dog around other dogs if he has Giardia? ›

Dogs with Giardia must steer clear of Canine to Five and any communal dog spaces until they've had a negative fecal test.

What disinfectant kills Giardia? ›

The most readily available disinfectant is bleach diluted 1:32 in water. Studies have shown this dilution to require less than one minute of contact time to effectively kill giardia cysts.

What shampoo kills Giardia in dogs? ›

Control of Giardiasis in Animals

Infected dogs and cats should be bathed to remove cysts from the hair coat, and use of a shampoo containing chlorhexidine digluconate has been recommended.

What kills Giardia on carpet? ›

Clean the area or item with soap and water or another detergent if it is dirty. Then, use a household disinfectant. effective use of the product. in some household cleaning products; the active ingredient may be listed as alkyl dimethyl ammonium chloride.

Should dogs with Giardia be quarantined? ›

Short answer: Yes. Giardia is very contagious, and if your dog is pooping in your backyard then you have to be super careful.

How quickly do dogs show signs of Giardia? ›

The giardia organism can be found in soil, food or water sources, especially if contaminated with feces. If your dog or cat ingests giardia from one of those sources, they will most likely show signs of diarrhea within 24 hours.

How likely is it to get Giardia from your dog? ›

The chance of you getting Giardia from dogs or cats is low, as the type of Giardia that infects them is generally not the same type that infects humans. If you own exotic pets or other household pets, contact your veterinarian for more information and guidance.

Why is Giardia so hard to get rid of? ›

Giardia is a difficult parasite to get rid of because it's easy for your dog's environment to stay contaminated. If you don't take extra measures to deep clean your dog's space, she may need longer treatment.

What does Giardia poop look like? ›

Watery, sometimes foul-smelling diarrhea that may alternate with soft, greasy stools.

How long does Giardia last on surfaces? ›

How long does Giardia survive in the environment? o In cold temperatures (around 4°C/39.2°F), Giardia can survive for approximately 7 weeks (49 days). o At room temperature (around 25°C/77°F), Giardia can survive for approximately 1 week (7 days).

Does vinegar disinfect Giardia? ›

... In the present study, tap water had no lethal effect, but the vinegar destroyed the parasites as potassium permanganate did.

Is Giardia killed by hand sanitizer? ›

When soap and water aren't available, you can use alcohol-based sanitizers. However, alcohol-based sanitizers aren't effective in destroying the cyst form of giardia that survives in the environment.

Is hydrogen peroxide effective against Giardia? ›

Disinfection efficiency – Hydrogen peroxide is generally an effective disinfectant. It is able to kill a wide range of microorganisms, including bacteria, viruses, and fungi. It is also effective at inactivating parasites such as giardia and cryptosporidium.

Why does my dog keep testing positive for Giardia? ›

Some strains of giardia are very resistant to treatment, but more often continually positive giardia tests are the result of re- infections than treatment failure. Here are the most common causes of reinfection: 1) Giardia are cysts are clinging to the pets fur. The pet then grooms itself and ingests more giardia.

Do dogs get vaccinated for Giardia? ›

Recently, a Giardia vaccine has become commercially available in the USA for prevention of clinical signs of giardiasis and reduction of cyst shedding in dogs and cats. The vaccine is based upon the current state of knowledge of Giardia antigenicity and immunology.

How long does Giardia live on grass? ›

For giardia: If the weather is below 77 degrees, then the yard will have giardia cysts present for at least a month. If the weather is consistently hotter than 77 degrees, then the giardia cysts will have all died off after one week.

How do you clean Giardia from a couch? ›

Place and discard the faeces in a plastic bag. Clean the contaminated area with regular detergent or carpet cleaning agent. Allow carpet or upholstered furniture to fully dry. o Disinfection ▪ Wear gloves. Steam clean the area at 158°F for 5 minutes or 212°F for 1 minute.

How do I decontaminate my yard from Giardia? ›

Common household disinfectants and steam-cleaning are the most effective ways for killing Giardia cysts. Remove and dispose of all feces promptly. Giardia cysts on the lawn can only be killed by direct sunlight drying them.

How do you clean dog toys with Giardia? ›

-Toys/clothes/bedding *daily if possible

-Food and water bowls, as well as any dishwasher safe toys may be disinfected in a dishwasher with a final rinse or dry cycle that reaches at least 113 degrees F for 20 minutes. (If no dishwasher, dishwasher safe items should be submerged in boiling water for 1-3 minutes).

Can Giardia live on dogs fur? ›

Giardia lives in the gut of an animal. They are expelled in fresh stool and can contaminate water and soil and can live in animal fur in their cyst form.

Do dogs smell when they have giardia? ›

Giardia in dogs is a disease that causes a lot of watery diarrhea. Beyond diarrhea, Giardia symptoms in dogs can include vomiting, excess foul-smelling gas, decreased appetite, decreased energy, and frequent urges to poop.

Can you smell Giardia in dogs? ›

Most dogs, and cats, with giardiasis are still quite bright and active, adds the vet; rarely will they vomit, and most retain a good appetite. The diarrhoea, however, will generally be watery, with a particularly bad smell and often appears a little greasy.

How long does Giardia live on a rug? ›

How long does Giardia survive in the environment? In cold temperatures (around 4ºC/39.2ºF), Giardia can survive for approximately 7 weeks (49 days). At room temperature (around 25ºC/77ºF), Giardia can survive for approximately 1 week (7 days).

How do you clean Giardia from a litter box? ›

Disinfect Litter Boxes Frequently

A mixture of chlorine bleach and water may be effective for litter boxes, and some catteries advocate steam cleaning of all surfaces where Giardia cysts might be present.

How does Giardia get in my yard? ›

Mud puddles, unclean rivers, even contaminated grass can all spread this infection. According to the Companion Animal Parasite Council (CAPC), “Giardia is passed in the feces of animals in the form of a cyst that is resistant to many environmental extremes.

How do dogs act when they have Giardia? ›

Symptoms of Giardia infection in both people and pets can include diarrhea, gas, abdominal discomfort, nausea, and vomiting. It is possible to be infected and have no signs or symptoms of illness.

What is the life cycle of Giardia in dogs? ›

There are two stages of the life cycle of giardia: cysts and trophozoites. Trophozoites, the active feeding stage, attach to the host's small intestine to feed and multiply. They then encyst, and these cysts are passed in the feces of infected animals. Sometimes, these feces end up in bodies of water.

Where did my dog get Giardia? ›

How Is Giardia in Dogs Spread? Giardia has to be ingested by your dog in order for him to get the parasite. Your dog can get Giardia by drinking water that has been contaminated by feces or by eating something that has been contaminated by feces, like grass.

Is Giardia spread by saliva in dogs? ›

So yes, you can get giardia from your dog licking you, but it's pretty unlikely. Most human cases of giardia occur from drinking contaminated water.

How long does dog Giardia last? ›

Pets often have Giardia, too. Signs and symptoms may range from nothing at all to any of those listed below, and can last for 1 to 2 weeks or longer . Symptoms can come and go and can include: Diarrhea.

Does pumpkin help dogs with Giardia? ›

Results showed that pumpkin seeds were 85% and 100% effective at eliminating giardia depending on the species of pumpkins used. The reaction is believed to be caused by an amino acid in the seeds called cucurbitacin.

What food is good for dogs with Giardia? ›

Feeding your dog a bland and easily digestible diet can help the intestine heal from giardia. Work with your vet to find ingredients, like boiled chicken and rice, that are still nutritious and tasty for your pup.

What does dog poop look like with Giardia? ›

WHAT DOES GIARDIA POOP LOOK LIKE IN DOGS? Generally, dogs with Giardia have softish bowel movements. They range from moderately soft, like melted ice cream all the way to severe diarrhea. That's one of the most common signs.

Can you smell Giardia? ›

Key points about giardiasis

Symptoms include explosive, watery, greasy, foul-smelling stools, bloating, nausea, pain, gas, fatigue, and loss of appetite. Several medicines are available that cure the infection.

What naturally kills Giardia in humans? ›

Wormwood (200 milligrams taken 3x daily) — known for its anti-parasitic properties. (5) Oregano oil (500 milligrams taken 4x daily) — Oregano oil contains natural antibacterial and anti-parasitic substances that have many detoxifying effects.

What are the two stages of Giardia? ›

The Giardia lifecycle has two distinct phases: a vegetative trophozoite and an infective cyst that is resistant to harsh environmental conditions.

What weather kills Giardia? ›

Giardia cysts are killed in the environment by freezing temperatures and by direct sunlight.

What happens if Giardia is left untreated? ›

Occasionally, people with giardiasis will have long-term complications such as reactive arthritis, irritable bowel syndrome, and recurring diarrhea that can last for years. Among children in particular, severe giardiasis may delay physical and mental growth, slow development, and cause malnutrition.

How did my indoor cat get Giardia? ›

Causes of Giardia in Cats

Cats are infected by the cysts by ingesting stool or contaminated soil (via grooming) or drinking contaminated water. Contaminated food is less often a source of Giardia for indoor cats but can be a source of infection for outdoors cats.

Can my dog socialize with Giardia? ›

For Dog Parents With Multiple Pets: “Can My Other Dogs Catch It?” Short answer: Yes. Giardia is very contagious, and if your dog is pooping in your backyard then you have to be super careful.

How long is Giardia contagious in cats? ›

Eventually, the cat passes infectious cysts in its stool. The time it takes from ingestion of cysts to passage in feces is 5 to 12 days in dogs and 5 to 16 days in cats. These cysts are immediately able to infect another animal.

How easy is it to spread Giardia? ›

Giardia spreads easily and can spread from person to person or through contaminated water, food, surfaces, or objects. The most common way people get sick is by swallowing contaminated drinking water or recreational water (for example, lakes, rivers, or pools).

Should I keep my dogs separate if one has Giardia? ›

Dogs suspected or known to have giardiasis should immediately be separated to prevent risk of infection to other dogs.

How long should a dog with Giardia be isolated? ›

It may be a good idea to keep your dog away from the infected area of your yard for about a month after your dog has been diagnosed and treated with giardia to prevent reinfection.

Can I get Giardia from my cat licking me? ›

The chances of people getting Giardia infection from dogs or cats are low. The type of Giardia that infects humans is not usually the same type that infects dogs and cats. If you own other household or exotic pets, contact your veterinarian for more information.

Where did my indoor cat get Giardia? ›

Causes of Giardia in Cats

Cats are infected by the cysts by ingesting stool or contaminated soil (via grooming) or drinking contaminated water. Contaminated food is less often a source of Giardia for indoor cats but can be a source of infection for outdoors cats.

Is Giardia a big deal? ›

Giardiasis can cause minor to severe digestive symptoms, such as loose, runny stools and stomach cramps. The Giardia parasite can live outside the body for a long time. It can survive in water or food and on surfaces such as doorknobs.

How long is Giardia contagious on surfaces? ›

How long does Giardia survive in the environment? o In cold temperatures (around 4°C/39.2°F), Giardia can survive for approximately 7 weeks (49 days). o At room temperature (around 25°C/77°F), Giardia can survive for approximately 1 week (7 days).

How do you clean a couch with Giardia? ›

Place and discard the faeces in a plastic bag. Clean the contaminated area with regular detergent or carpet cleaning agent. Allow carpet or upholstered furniture to fully dry. o Disinfection ▪ Wear gloves. Steam clean the area at 158°F for 5 minutes or 212°F for 1 minute.

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