High rate of fatigue and abdominal symptoms 2 years after an outbreak of giardiasis – Source: Transactions of the Royal Society of Tropical Medicine and Hygiene, Jan 29, 2009

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[Note: Giardiasis is an intestinal infection resulting from infestation with Giardia – a parasite commonly found worldwide and generally transmitted via human, animal or bird feces-contaminated water, food, or hands. Infection usually lasts a few weeks, but in some individuals may enter a prolonged phase.]

The aim of this study was to evaluate the prevalence of fatigue and abdominal symptoms 2 years after Giardia lamblia infection.

All 1262 cases who had Giardia-positive stool samples during an outbreak in 2004 in Norway received a questionnaire in 2006 asking about fatigue and abdominal symptoms.

• Fatigue was reported by 41%,

• Whereas 38% reported abdominal symptoms,

• And there was a highly significant association between these symptoms.

• Increasing age was a highly significant risk factor for fatigue.

• The symptoms were not due to chronic infection in this cohort.

Our data warrant further investigations into the late effects of giardiasis.

Source: Transactions of the Royal Society of Tropical Medicine and Hygiene, Jan 29, 2009. PMID: 19185898, by Morch K, Hanevik K, Rortveit G, Wensaas KA, Langeland N. National Centre for Tropical Infectious Diseases and Unit for Infectious Diseases, Department of Medicine, Haukeland University Hospital, Bergen, Norway. [E-mail: kristine.moerch@helse-bergen.no]

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