title: High rate of fatigue and abdominal symptoms 2 years after an outbreak of giardiasis.
abstract: 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.
authors.affiliation: National Centre for Tropical Infectious Diseases, Haukeland University Hospital, 5021 Bergen, Norway. kristine.moerch@helse-bergen.no
authors.forename: K
authors.initials: K
authors.lastname: Mørch
authors.forename: K
authors.initials: K
authors.lastname: Hanevik
authors.forename: G
authors.initials: G
authors.lastname: Rortveit
authors.forename: K A
authors.initials: KA
authors.lastname: Wensaas
authors.forename: N
authors.initials: N
authors.lastname: Langeland
mesh_terms: D015746:Abdominal Pain / Q000453:epidemiology* / Q000469:parasitology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D005221:Fatigue / Q000453:epidemiology* / Q000469:parasitology; D005260:Female; D005873:Giardiasis / Q000150:complications / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway / Q000453:epidemiology; D011795:Surveys and Questionnaires; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult