Is Giardia duodenalis a bacteria?

What is giardiasis? 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).

What is Giardia caused from?

Giardia is a tiny parasite (germ) that causes the diarrheal disease giardiasis. Giardia is found on surfaces or in soil, food, or water that has been contaminated with feces (poop) from infected people or animals. You can get giardiasis if you swallow Giardia germs.

Is Giardia an Endoparasite?

Digestive System. Endoparasites are relatively common in mice. However, only two parasites regularly encountered in the digestive tract, the protozoan parasites Spironucleus muris and Giardia muris, are considered pathogenic, even though they are not associated with clinical signs in immunocompetent hosts.

What is the best treatment for giardiasis?

Metronidazole (Flagyl). Metronidazole is the most commonly used antibiotic for giardia infection. Side effects may include nausea and a metallic taste in the mouth.

Is Giardia an STD?

However, since the past 30 years of the last century, epidemiology and natural history studies have led to improved understanding of giardiasis as a STI, as a result of oral-anal sexual contact. Studies suggest that Giardia is an increasingly recognized infection that may be underdiagnosed under the STI context.

What are examples of endoparasite?

Endoparasite: Worms such as roundworms, tapeworms, and trematodes and protozoans such as Plasmodium and Amoeba are endoparasites.

What is called endoparasite?

Endoparasites are parasites that live in the tissues and organs of their hosts, such as tapeworms, flukes, and protozoans of vertebrates. From: Encyclopedia of Biodiversity (Second Edition), 2013.

What is the infective stage of Giardia duodenalis?

Giardia cysts are immediately infectious when passed in the stool or shortly afterward, and the cysts can survive several months in cold water or soil.

Can you get Giardia from kissing?

➢ Giardia is NOT spread from one person to another by coughing or sneezing, sharing drinks, hugging or kissing.

Does Giardia go away on its own?

Mild infections of giardiasis parasites may clear up on their own in a few weeks. However, more severe cases of giardia may cause long-term symptoms and complications. Giardiasis is an intestinal infection caused by the parasite, Giardia duodenalis.

Is Giardia worse than a stomach virus?

Giardia infection is an intestinal infection marked by stomach cramps, bloating, nausea and bouts of watery diarrhea. 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.

How do you test for Giardia?


  • Weight loss
  • Failure to gain weight
  • Vomiting
  • Dehydration
  • Poor coat appearance
  • How do I treat Giardia infections?

    – Metronidazole (Flagyl). Metronidazole is the most commonly used antibiotic for giardia infection. – Tinidazole (Tindamax). Tinidazole works as well as metronidazole and has many of the same side effects, but it can be given in a single dose. – Nitazoxanide (Alinia). Because it comes in a liquid form, nitazoxanide may be easier for children to swallow.