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Giardia in cats untreated

Giardia is a parasite that can infect the intestines of cats, dogs or humans. Left unchecked it causes giariasis, which can weaken a cat's immune system. Complications from giardia are rare, however, because the condition is relatively straightforward to treat. Becoming Infected With Giardia Left untreated, giardia can cause your cat significant health problems, and since it's not that easy to spot, your best option is to prevent it in the first place. Get a stool sample tested once a year as part of your pet's preventive care and general wellness program (or twice yearly if you have an outdoor cat) 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 Giardiasis can be fatal if left untreated. How Is Giardiasis Diagnosed? Giardia in cats can be detected through a microscopic examination of their stool for ova and parasites. Occasionally, the parasites may be seen on a direct smear of the feces

Giardiasis is a disorder caused by tiny one-celled organisms which live in the small intestines of cats. 1  The severity of disease is variable, but they can cause serious illness in some infected cats, with symptoms including severe diarrhea, sluggishness, and dehydration. Symptoms of Giardiasis in Cats Giardia Lamblia: Giardiasis is a waterborne illness caused by Giardia parasite. Sx's - there may be no sx's or diarrhea, oily floating stool, gas, nausea & abdomin Read More. 90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more Cats become infected by ingesting giardia cysts present in the feces of another infected animal, usually a littermate or chronic carrier cat. Giardiasis is more common in multiple-cat households and catteries due to its mode of transmission. Also, the infection rate is greater in cats less than one year old What are the long term health risks to a cat that has Giardia (if untreated)? Since some vet tests do not always catch Giardia and a cat may not show symptoms a cat may be living in households around the world without the owners knowing it. In this environment is there a reasonable risk of the owners catching Giardia Younger cats and kittens are especially prone to developing dehydration due to giardia. Dehydration can be life-threatening when left untreated. If you notice signs of dehydration in your cat, take it to your vet as soon as possible. The following are symptoms of dehydration in cats

Giardia in Cats and Permanent Damage Pets - The Nes

  1. utes This parasite makes its way into the small intestines of house cats, though if untreated it can expand out to the large intestine and weaken their immune system. There are so many different kinds of illnesses your cat can get during their life
  2. ates untreated drinking or swim
  3. ate animals and people
  4. By use of an immunofluorescent assay for detection of Giardia lamblia cysts and C parvum oocysts, organism numbers were counted and scored. Fecal results from treatment-group cats were compared with those of 8 untreated cats with Giardia infection but no C parvum infection (control-group cats)
  5. Giardia is a common protozoan parasite of farm animals, especially calves and lambs. Dogs are frequently found infected; cats less frequently. In different areas of the United States, 7-16% of beavers were found to be infected; 95% of muskrats were found to be infected. What are the health effects of Giardia infection? Giardia infection may be.
  6. ation can be from direct or indirect contact with the infected offspring (cysts.
  7. Giardia infections (called Giardiasis) show no gender or breed predilection but are most common in young cats and in cats under close confinement, such as those in kennels, animal shelters and pet stores

Recognizing Signs of Giardia in Cat

Unfortunately, the giardia lamblia parasite that causes giardiasis can be present in any body of water, including streams, lakes, pools, spas, and even the water supply. Research suggests that medication may help shorten your recovery, which normally takes 2 to 6 weeks, so it's best to see a doctor if you suspect you have giardiasis. [2 If Giardia remains untreated in dogs, several things may occur. The dog will continue to suffer uncomfortable, even painful, gastrointestinal symptoms. The feces will be greasy and malodorous, even more so than the usual unpleasant smell of dog fecal matter. He may lose weight, fail to thrive and become very sick due to the dietary malabsorption Giardia infection is caused by a microscopic parasite that is found worldwide, especially in areas with poor sanitation and unsafe water. Giardia infection (giardiasis) is one of the most common causes of waterborne disease in the United States Giardiasis is a diarrheal disease caused by the microscopic parasite Giardia duodenalis (or Giardia for short). Once a person or animal has been infected with Giardia, the parasite lives in the intestines and is passed in stool (poop). Once outside the body, Giardia can sometimes survive for weeks or even months

When Giardia cysts are found in the stool of a healthy adult dog without diarrhea, they are generally considered a transient, insignificant finding. However, in puppies and debilitated adult dogs, they may cause severe, watery diarrhea that may be fatal if left untreated. The likelihood of developing disease increases when large numbers of cysts are present in the environment from fecal. Unfortunately, such cats remain a source of infection for others. If left untreated, approximately ninety percent of infected cats will stop having diarrhea within two years. However, most of these cats will continue to carry the T. foetus organism, possibly for a lifetime. Single cat owners may find this outcome satisfactory if the cat remains Giardia in dogs does not always cause problems, but when it does it is highly unpleasant. Giardiasis is the term for the disease caused by the infection, and, as in humans, the most common symptom. Most commonly, people become infected with giardia from drinking untreated, contaminated water from streams, lakes or ponds. Once a person is infected, the parasite lives in the intestines and is passed in the stool of the infected person. Animals such as cats, dogs and cattle can also be infected and spread the disease to humans Giardia intestinalis is a microscopic parasite (too small to see with the naked eye). It can affect humans and animals, such as dogs, cats and wild animals. A parasite is an organism that needs another organism (like a person or animal) to survive. People commonly get giardiasis from swallowing the parasite in untreated water. Giardiasis.

Giardia and Pets Giardia Parasites CD

What is Giardia? Giardiasis is an intestinal infection of man and animals caused by a protozoan parasite Giardia intestinalis (also known as Giardia lamblia). in puppies and debilitated adult dogs, they may cause severe, watery diarrhea that may be fatal if left untreated. The unsuccessful attempts to definitively infect dogs and cats. 3. Not all dogs infected with giardia will get sick. Most adult dogs are resistant to giardia, Dr. Jensen states. Most adult dogs have been exposed and will not become symptomatic Many dogs infected with the parasite won't show any outward signs of infection. When Giardia does cause disease, it's known as giardiasis. Persistent diarrhea is the most common sign of giardiasis, but if left untreated for a long time, weight loss and even death can occur Treating Giardia Infections in Cats. Thomas Kirby. June 27, 2016. If left untreated, it can actually cause death in older animals and those with compromised immune systems. It's important that a giardia infection be accurately diagnosed and treated as quickly as possible after symptoms appear. A stool sample may be required for diagnosis

Cats become infected by ingesting Giardia cysts in the feces of another infected animal, usually a littermate or chronic carrier cat. Giardiasis is more common in multiple-cat households and catteries, and the infection rate is greater in cats less than one year old. Giardia cysts are very resistant to freezing and municipal water chlorination. Giardia is a microscopic parasite that lives in the intestines of many domestic and wild Left untreated, your pet may become decreasingly sharing the same species of Giardia as dogs and cats. People are susceptible to contracting some species of Giardia, however; it is more likely to be contracted by drinking from a. Gastrointestinal parasitism is a common problem in cats, with prevalence rates as high as 45 percent. The parasites can be wormlike (e.g., stomach worms, roundworms, hookworms, tapeworms) or one-celled (e.g., Isospora, Giardia, Toxoplasma) organisms. The signs associated with parasite infections are fairly nonspecific, such as a dull haircoat, coughing, vomiting, diarrhea Giardia are parasites that live in the small intestine of dogs and cats. Giardia is not just found in rescue pets..Many puppies and kittens from the very best breeders are often affected. Also, a small percentage of pets can carry Giardia but be asymptomatic so it is very important for every pet to be tested

All About Giardia in Cats - Hill's Pet Nutritio

How to Treat Giardia in Cats - The Spruce Pet

Feral cats are susceptible to several different kinds of parasites, including roundworms, coccidia, and giardia. Because it is so common, all kittens should be given pyrantel pamoate for roundworms. This medication must be given twice, with the second treatment following two weeks after the first Unfortunately there are a number of parasites that can cause problems for cats and giardia is one of them. Giardia is an intestinal parasite that can cause damage in the gastrointestinal (GI) tract and if left untreated it may cause severe symptoms. But there are some things you can do to prevent this from infecting your cat The most common ones found in North America include Giardia infections (through contaminated water) and toxoplasmosis (spread by cats). Others include: E.vermicularis, or pinworm; Trypanosoma cruzi, the cause of Chagas disease. Echinococcosis, another tapeworm, passed through dogs and sheep; Cysticercosis, or tapeworm. Toxocariasis, or roundworm cats, cattle, sheep, goats, horses, pigs, beavers, coyotes, non-human primates, rodents, and raccoons. How can my animal get giardiasis? Giardia are found in soil, food, water, or surfaces that have been contaminated with the feces from infected humans or animals. Infection occurs after accidentally ingesting the parasite. How does giardiasis.

Infections of the microscopic Giardia parasites, also known as Giardia duodenalis or Giardia lamblia, usually clear up in two to six weeks on their own. However, repeated infections or infections in people with compromised immune systems can have long-term effects, some of them severe The overall estimated prevalence of Giardia and Cryptosporidium in dogs was 25.2% and 7.6%, respectively and in cats, 27.3% and 12.1%, respectively. The estimated prevalence of Giardia infection in dogs in the rainy season (31.7%) was significantly higher than in the drier, winter season (17.2%) (p < 0.01)

what happens if giardia is left untreated Answers from

  1. ation in.
  2. After ingesting of Giardia cysts, it takes 5 to 16 days before the cat will show signs of diarrhea. Acute or chronic, and continuous or intermittent diarrhea is the most common sign of infection, although the majority of Giardia-infected cats are free of disease
  3. Giardia is a common intestinal infection that affects cats, dogs, and humans. It is caused by a single-celled parasite and can result in diarrhea and weight loss; if untreated or chronic, Giardia infection can lead to a decrease in nutrient absorption, damage to the intestinal lining, dehydration, and failure to thrive in children. Infection usually is not life-threatening in developed.
  4. ants, and pigs. Giardia spp have been reported in 0.44%-39% of fecal samples from pet and shelter dogs and cats, 1%-53% in small ru
  5. What Is Coccidia in Cats? Coccidia is a protozoan that infects the intestinal tract of cats and other species and causes coccidiosis. It is a single-celled organism and while it isn't a worm or an egg, it is still a type of intestinal parasite.There are many different species of coccidia but two species of coccidia are most common in cats - Isospora felis and Isospora rivolta

Giardia is a very common intestinal parasite, not like a worm, bacteria or virus, it's a protozoan parasite. It is a unicellular parasite that lives in the intestines of dogs and cats, it can actually affect humans as well and cause gastrointestinal upset, vomiting and diarrhea and poor growth in dogs. The name of the infection this parasite. In cats, they are panleukopenia, calicivirus, rhinotracheitis (herpesvirus), and rabies as required by law. Do all dogs eat poop? Domestic dogs , which can also be avid eaters of poop , have been found to turn to poop eating due to nutritional deficiencies in their diets caused by starvation or disease, prior research has suggested Giardia, Clostridium perfringens enterotoxin, and Cryptosporidium are important causes of diarrhea in dogs and cats. Tritrichomonas foetus is an important problem in cats. These disorders should be investigated early in the course of diarrhea, whether it is persistent or intermittent, along with evaluation for dietary causes of GI signs, nematode parasites, bacterial and viral causes, and.

Gastrointestinal Parasites of Cats Brochure Cornell

  1. This condition is more common in dogs but can occur in cats as well. Babesia Infection in Dogs . August 31, 2020 Left untreated, liver function would be irreversibly damaged, but treating early and continuing with lifelong therapy has a good prognosis Giardia is the genus of a protozoan parasite that is infectious to both humans and.
  2. ated sources (e.g. rivers, poorly treated water in countries where the water supply might be unsafe), washing hands with soap.
  3. Coccidia are a group of single-celled parasites called protozoa. Cats are susceptible to infection from a number of these parasites, including Isospora, Toxoplasma, Sarcocystis, Besnoitia and Hammondia
  4. To an extent, giardia is dangerous for your dog. Any sudden weight loss should be a cause for concern. Particularly, if your dog has a suppressed immune system. The parasite can even cause death if untreated, though that is quite rare. In most cases, your dog will simply have diarrhea and/or vomiting. This may lead to dehydration

Giardia Questions TheCatSit

  1. Giardia infection can also lead to weight loss, chronic intermittent mucous and fatty stool. Infected animals also tend to have mucous in their stool. Vomiting may occur in some cases. Most animals do not have a fever, but they may be less active. And while these symptoms can last for weeks, many animals may never develop any signs of illness
  2. ated water or foods. Parasites present from a substance like feces or water can be transmitted and will cause harm to your pets
  3. ated feces, water, food, and fur. For example, your pet may: Eat the conta

Giardia (pronounced jee-ahr-dee-uh) is a microscopic protozoan parasite that lives in the intestines of dogs, cats, humans, other mammals, birds and amphibians. An infection with Giardia is called giardiasis. There are several subspecies of Giardia, each targeting a different group of animals Giardia duodenalis, also known as Giardia intestinalis and Giardia lamblia, is a flagellated parasitic microorganism, that colonizes and reproduces in the small intestine, causing a diarrheal condition known as giardiasis. The parasite attaches to the epithelium by a ventral adhesive disc or sucker, and reproduces via binary fission. Giardiasis does not spread via the bloodstream, nor does it. What happens if Giardia is left untreated in dogs? Giardia is contracted 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. But if diarrhea is severe or becomes chronic, then medical. When Giardia cysts are found in the stool of a healthy adult dog without diarrhea, they are generally considered a transient, insignificant finding. However, in puppies and debilitated adult dogs, they may cause severe, watery diarrhea that may be fatal if left untreated Giardia infections are asymptomatic in many cats. In some cases, however, an infection can result in diarrhea, nausea and abdominal pain. In some cases, however, an infection can result in.

Giardia is transmitted when an animal ingests cysts shed by infected animals or humans. 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. But if diarrhea is severe or becomes chronic, then medical attention is required What happens if Giardia is left untreated in dogs? If giardia is left untreated, your dog may lose weight and continue to have intestinal symptoms. Your dog is at risk for developing dehydration if the vomiting and diarrhea continue. Very young and very old animals are at high risk for developing complications secondary to giardia

How to Diagnose and Treat Giardia in Cats: 10 Step

Giardia in Cats: symptoms and transmission - My Animal

Giardiasis is a tummy bug that causes symptoms like diarrhoea, farting and bloating. It usually goes away in about a week if it's treated, but it can sometimes last much longer If not detected, untreated giardia can affect intestinal absorption of nutrients and cause malnutrition. Giardia has two life stages: Trophozoite. author of The Complete Guide to Natural Health for Dogs and Cats, recommends the following daily amounts of fresh garlic for dogs: 10 to 15 pounds - half a clove. 20 to 40 pounds - 1 clove Giardiasis is the intestinal infection caused by Giardia lamblia, in which pathogenicity was cast doubted for decades but now is recognized as one of the most common causes of diarrheal disease worldwide. Originally described as waterborne transmitted, it has been broad described as of fecal-oral, person-to-person contact, and sexual transmission also. Although it is recognized as endemic.

Giardia and Cryptosporidia. PROTOZOAL in environment in ingestible cyst form, divides intestinal wall spread by consumption of host org. or through feces common, can be fatal if left untreated male cats are more prone due to small diameter urethra and increased potential for blockage daignosis= urinalysis and blood tests. FLUTD symptoms When Giardia cysts are found in the stool of kittens and debilitated adult cats, they may cause severe, watery diarrhea that may be fatal if left untreated. However, if cysts are found in a healthy adult cat without diarrhea the infection may be transient and treatment may not be necessary Giardia is a parasite that lives in your pets' small intestine, and causes them to experience several health problems which could become major if not treated. It occurs more frequently in dogs and cats that spend a great deal of time outdoors as it is usually found in water or other materials that may have been soiled with feces from other. GI parasites are a very common ailment in kittens, and should be combatted through standard preventative measures and proactive treatment as needed. All kittens should be treated for common parasites such as roundworms and hookworms at 2, 4, and 6 weeks of age. This can be done at a veterinarian, or at home However, the administration of three Giardia species vaccinations did not lessen or eliminate cyst shedding in treated kittens when compared to untreated control kittens (Stein et al 2003). The administration of a combination of febantel, pyrantel, and praziquantel (FPP), has been evaluated for the treatment of giardiasis in dogs ( Barr et al.

Giardia affects pets of all ages. Dogs are very commonly affected in our area, cats are less so (they likely have a better immunity to giardia). In theory, an animal's immune system will develop a degree of immunity after infection with giardia. However, we still see recurring giardia infections, likely due to: 1. The immunity is not complete. Giardia has long been considered the scourge of the backcountry, where every water body was assumed to contain a healthy population of these critters or some other related pathogen. Ingestion of this parasite often results in giardiasis, popularly known as beaver fever, a common form of gastroenteritis, characterized by a combination of diarrhea, vomiting, abdominal pain and cramping. Although. Giardiasis is an infection caused by the Giardia intestinalis parasite. Cats can become infected after eating or drinking things that have been contaminated, mainly groundwater or animal feces.The most obvious signs of giardiasis include odorous and sof Do not drink untreated water directly from outdoor water sources. Have your pets tested for parasites by a veterinarian and treated as needed. Given the variety of intestinal parasites that dogs and cats can acquire, accompanied by the range of clinical signs these parasites produce, a pet owner should consult with a veterinarian on the best.

Giardia cysts from the stool of each dog were quantified on days -3, 0, 5, 7, 9, 11, 14, 18, 25, and 28. Biochemical parameters were evaluated in all dogs, before the first treatment and after concluding the experiment. Shedding of Giardia cysts was reduced in all treated groups when compared to untreated controls (P < 0.01) Once a human or animal (for example, cats, dogs, cattle, deer, and, of course, beavers - which give Giardia it's famous Beaver-Fever moniker) has been infected with Giardia, the parasite lives in the intestines and is passed in feces. Once outside the body, Giardia can sometimes survive for weeks or months, and it can be found within. Giardia intestinalis includes both G. duodenalis and G. lamblia. It is a protozoan parasite that causes the diarrheal illness giardiasis. Giardia is found on surfaces or in soil, food, or water that has been contaminated with feces from infected humans or animals. Giardia is protected by an outer shell that allows it to survive outside the body. If you have another dog or a cat, consider getting them tested for Giardia in case they are carriers and a potential source of infection. Be mindful when your dog is socialising with other dogs in parks, kennels or grooming facilities, particularly where water sources are present Giardiasis is an intestinal illness caused by the parasite, Giardia lamblia. The parasite can be found in the stools of infected humans and animals (dogs, cats, beavers, rodents). People who drink untreated surface water from ponds, lakes and streams have a higher risk of getting giardiasis. Travelers and persons in institutional settings or.

Why Stool Test Your Cat? - The Cat&#39;s Meow - KitNipBoxGeneral Information| Giardia | Parasites | CDC

  1. The Giardia parasite lives all over the world in soil, food, and water. It also can live on surfaces that have come into contact with human or animal waste. You could be infected if: You drink untreated water in nature. Many animals carry giardia in their feces. They may introduce the parasite into rivers, streams, or lakes
  2. Overview of T. foetus. in Cats. Tritrichomonas foetus (T.Foetus) is a protozoan parasite that infects pigs, cows, birds, and cats all over the world.Although a single name refers to the species infecting all animals, at the time of writing scientists are in the process of identifying and differentiating Tritrichomonas blagburni, which affects cats, from Tritrichomonas foetus, which affects cattle
  3. Giardia sp. is a highly motile one-celled organism that infects cats and causes a condition called Giardiasis. Infection is uncommon, with around 5% prevalence in some regions, but it can spread easily in a multiple cat household. It mostly affects and causes disease in cats younger than 1 year of age

Furthermore, genetic studies have shown that domestic dogs, cats, cattle, and sheep are also capable hosts of Giardia similar to that of human origin. Although most people associate Giardia lamblia intestinal infection with beavers, the protozoa is commonly found in most waterways in North America and occurs in a percentage of most wil Giardia is commonly seen in young cats confined together in groups, such as a cattery, kennels, shelters, and pet stores. Symptoms. Diarrhea is the most common sign of infection. Some cats may vomit in addition to the diarrhea. Weight loss may occur secondary to the diarrhea. The cat may still have a good appetite as well but still have the. 67,385 with Giardia. 10,930 with Hookworms. Stool (fecal) testing is crucial for your cat's health. Parasites like roundworms and Giardia can cause digestive upset and other illnesses in cats, and some can even be transmitted from cats to people. This is especially important for children, the elderly, and those with weakened immune systems Giardia (Giardia canis)Holly Nash, DVM, MSVeterinary Services Department, Drs. Foster & Smith, Inc. Giardia are protozoa (one-celled organisms) that live in the small intestine of dogs and cats. Giardia are found throughout the United States and in many other parts of the world

Panacur for Treating Giardia in Cats Pets - The Nes

Giardia can affect both cats and dogs. Giardia symptoms are more noticeable in younger animals than in older animals. The symptoms of giardia in animals can be sudden (acute), temporary (transient), non-continuous (intermittent) , or ongoing (chronic) in nature. Dogs with Giardia exhibit diarrhea that is soft, frothy, greasy, and with a strong. Giardia is a disease that can be spread to other people, so health care providers in Boston are required by law to report cases of Giardia to the Boston Public Health Commission. In order to protect the public, workers at food-related businesses who have giardiasis must stay out of work until they don't have diarrhea and a lab test on a stool. Crypto & Giardia. Denver Water has tested for cryptosporidium (crypto) and giardia in raw and treated water since the 1980s. We have never detected a viable indication of either in treated drinking water. Crypto and giardia are microscopic organisms that, when ingested, can cause diarrhea, cramps, fever and other symptoms When signs and symptoms are severe or the infection persists, doctors usually treat giardia infection with medications such as: Metronidazole (Flagyl). Metronidazole is the most commonly used antibiotic for giardia infection. Side effects may include nausea and a metallic taste in the mouth. Don't drink alcohol while taking this medication

What&#39;s Hiding in Your Pets Feces- It&#39;s Giardia - Vet In

Evaluation of fenbendazole for treatment of Giardia

Giardia and Cryptosporidium infections are common in cats, but knowledge is limited about their clinical importance, risk factors, and the role of cats as a reservoir for human infections. Here, we collected faeces and questionnaire data from 284 cats from shelters and veterinary clinics in the Copenhagen Metropolitan Region (= study population) Giardia (Giardiasis)Giardia is a simple one-celled parasitic species; it is not a worm, bacteria or virus. There are seven genotypes, A through G, with dogs being most commonly infected by C and D, cats with F, and humans most commonly infected with A and B. E and F are rarely reported Giardia is a microscopic protozoan parasite that can cause diarrheal disturbances in dogs, cats, birds, mammals, and humans. They are completely different from bacteria, viruses, fungi, and worms. The organism is also known as Giardia duodenalis, Giardia Intestinalis, and Giardia lamblia.Giardia resembles a pear in shape, with whip-like structures on its body called flagella Giardia infection or giardiasis is also known as beaver fever. It is an intestinal tract infection caused by the giardia parasite that affects mammals such as humans, dogs, and cats. When animals unknowingly ingest the giardia parasite's larvae, also called cysts, the result is Giardiasis. These larvae or cysts often live in waterborne sources (Disease from Giardia is sometimes called Beaver Fever, but Dr. Peregrine thinks beavers may be unfairly blamed for the parasite's success.) Giardia may also contaminate streams or lakes via untreated human sewage. How Dogs Get Giardia. Dogs acquire Giardia primarily by drinking water that contains cysts

The type of giardia that infects humans is not the same kind that infests dogs and cats, and vice versa. Symptoms of Giardia in Dogs Between 6 to 7 percent of all dogs can be infected with giardia at any given time, and about 8 out of 10 of these cases will surprisingly show no symptoms whatsoever Giardia is a parasite found in both drinking and recreational water and lives in the intestinal tract (usually the duodenum) of numerous infected species, which could be people, birds and other animals.. Birds: This parasites has infected any species of bird, although it is most often found in cockatiels, lovebirds, budgies, and Grey-cheeked parakeets Giardiasis is an infection mainly of the small intestine caused by the parasite Giardia lamblia. Giardiasis has been reported in humans and in a variety of animals. To prevent infection wash hands thoroughly and don't drink untreated water Giardia in pets should be treated as a potentially communicable disease. It is not known for certain if Giardia from pets directly infects humans, however, the same strains of Giardia have been known to infect dogs, cats and humans. Therefore, good hygiene should be observed when interacting with an infected animal and when cleaning up fecal.

Giardia affects humans, dogs, cats and other animals. It spreads by food and water that has been contaminated by the Giardia intestinalis , protozoa organism. Giardia is one of the most common intestinal parasites in the world infecting as much as 20% of the whole population of the earth Giardia is a one-celled protozoal parasite that causes giardiasis. In humans, it is one of the most common protozoan water borne illnesses although it is unknown if the species of Giardia that infects humans is the same as that which infects dogs, cats and other animals

Symbiotic Relationships: Parasitism - Science News