giardiasis


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giardiasis

(jēärdī`əsĭs, järdī`əsĭs), infection of the small intestine by a protozoan, Giardia lamblia. Giardia, which was named after Alfred M. Giard, a French biologist, is spread via the fecal-oral route, most commonly by eating food contaminated by the unwashed hands of an infected person or by drinking groundwater polluted by the feces of infected animals such as dogs and beavers (hence the nickname "beaver fever"). It attaches itself to the walls of the small intestine and there multiplies quickly. About two thirds of infected individuals develop no symptoms. Symptoms, when present, occur one to three days after infection and consist of diarrhea, flatulence, and abdominal cramps, often accompanied by weight loss. In some cases the infection becomes chronic. Giardiasis has traditionally been considered a tropical disease, but it is becoming more common in developed countries, especially among gay men and among groups of very young children in close contact with each other, as in day-care centers before toilet training and proper handwashing techniques have been mastered. Diagnosis is by direct microscopic examination of the stool or by testing for antibodies to the parasite. In most cases no treatment is necessary. The drugs metronidazole, tinidazole, and nitazoxanide are sometimes prescribed.

giardiasis

[jē‚är′dī·ə·səs]
(medicine)
Presence of the protozoon Giardia lamblia in the human small intestine.
References in periodicals archive ?
Although other types of acute gastrointestinal infections have been associated with ongoing disorders including both fatigue and irritable bowel syndrome (IBS), the finding challenges the assumption that acute giardiasis, once treated, does not cause long-term complications.
Cryptosporidium infection results in bowel wall thickening, also typically involving the proximal small bowel, which can be indistinguishable from MAI and giardiasis.
1983), protozoan infections most commonly found in travelers to Mexico or immigrants from that country are amebiasis and giardiasis.
Patients are prone to infections, especially giardiasis and bacterial overgrowth, and they have chronic gastrointestinal complaints including diarrhea and malabsorption.
82 Cryptosporidiosis -- 25 10(40) -- Enterovirus -- 24 12(50) -- infections Giardiasis -- 25 8 (32) -- Leptospirosis 29 16(55) 27 15(56) 0.
Dr Al Attar said the most common food-borne illnesses reported in Dubai are Giardiasis (a parasitic infection), Amoebiasis (caused by amoeba), and Salmonella (a bacterial infection caused mainly by spoilt egg, meat etc).
Amoebiasis, giardiasis, ascariasis, hookworm infection, and trichuriasis are among the most common intestinal parasitic infections worldwide and are closely related to socio-economic status, poor sanitation, inadequate medical care and absence of safe drinking water supplies [5,17,19,38,39].
Notifiable enteric infections included salmonellosis, shigellosis, giardiasis, yersiniosis, cryptosporidiosis, cyclosporosis, campylobacteriosis, amebiasis and Escherichia coli infections.
The average length of stay was 4 days for patients with giardiasis, 6 days for those with cryptosporidiosis, and 10 days for those with Legionnaires' disease.
Antigiardial and immunostimulatory effect of Piper longum on giardiasis due to Giardia lamblia.