Giardiasis is the most frequently diagnosed intestinal parasitic disease in the United States and among travelers with chronic diarrhea. Signs and symptoms may vary and can last for 1 to 2 weeks or longer. In some cases, people infected with Giardia have no symptoms.

Giardiasis is the most frequently diagnosed intestinal parasitic disease in the United States and among travelers with chronic diarrhea. Look at those smiley faces

Life cycle of Giardia

PHIL Image 3394 - This is an illustration of the life cycle of Giardia lamblia…

Medical Laboratory and Biomedical Science: Overview of Intestinal Protozoan Infections

The most important intestinal protozoan pathogens are Entamoeba histolytica, Cryptosporidium sp, Giardia intestinalis (lamblia), Cystoisospo.

Giardia lamblia cyst iodine stained

Giardia lamblia cyst iodine stained

Giardia lamblia cyst iodine stained

Giardia lamblia cyst iodine stained

Giardia lamblia - this is why you do NOT drink from creeks, lakes, etc!! Can you say bloody stools and severe abdominal cramping?

The cutest parasite ever! Giardia lamblia- pear shaped (motile form), found in ponds, streams, causes beaver fever diarrhea, and transported easily by beavers

MOST COMMON: Giardia lamblia- rapid weight loss, diarrhea that smells like death & sewage, FOUL gas, bloating, & dehydration --they are most common in dogs cats and beavers. often mistaken for IBS

Scanning electron micrograph (SEM) of Giardia lamblia. This one-celled microscopic flagellate protozoan is an intestinal parasite in humans causing giardiasis (lambliasis), an intestinal disorder

Giardia is a microscopic parasite that causes the diarrheal illness known as giardiasis. Giardia (also known as Giardia intestinalis, Giardia lamblia, or Giardia duodenalis) is found on surfaces or in soil, food, or water that has been contaminated with feces (poop) from infected humans or animals.    Giardia is protected by an outer shell that allows it to survive outside the body for long periods of time and makes it tolerant to chlorine disinfection.

intestinalis trophozoites in Kohn stain. intestinalis cyst stained with trichrome. intestinalis in in vitro culture, from a quality control slide.

Giardia lamblia (Giardiasis). Infection occurs by ingestion of infective cysts, transmitted by food, water, feces, fomites, and flies. Excystation occurs in the small intestine, where the trophozoites multiply by binary fission, and cysts are passed in feces. Diagnosed by recovery/identification of trophozoites or cysts in feces or duodenal contents. Image from Pinterest, information from Medical Parasitology, A Self-Instructional Text.

Giardia lamblia (Giardiasis). Infection occurs by ingestion of infective cysts, transmitted by food, water, feces, fomites, and flies. Excystation occurs in the small intestine, where the trophozoites multiply by binary fission, and cysts are passed in feces. Diagnosed by recovery/identification of trophozoites or cysts in feces or duodenal contents. Image from Pinterest, information from Medical Parasitology, A Self-Instructional Text.

One of the more common parasitic organisms is Giardia lamblia. This parasite grows in the upper GI tract and produces greasy, smelly diarrhea.

One of the more common parasitic organisms is Giardia lamblia. This parasite grows in the upper GI tract and produces greasy, smelly diarrhea.

Trophozoite of Giardia lamblia on trichome stain

Trophozoite of Giardia lamblia on trichome stain

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Giardia lamblia    • Cisto em formato oval com fibrilas destacadas ao centro da forma parasitária (linhas que sugerem a formação de axonemas).  • Material de sedimento fecal corado com lugol.

Giardia lamblia • Cisto em formato oval com fibrilas destacadas ao centro da forma parasitária (linhas que sugerem a formação de axonemas). • Material de sedimento fecal corado com lugol.

Giardia lamblia...smiling all the way down your GI track

Giardia - I've been amazed to see how pretty microcopic photos of deadly things can be - ebola, salmonella, etc. But THIS IS RIDICULOUS! These little bastards have smiley faces!

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