title: Correlation between the presence of symptoms and the Giardia duodenalis genotype.
abstract: Clinical manifestations of Giardia duodenalis infection vary from asymptomatic infection to chronic diarrhoea. We study the correlation between the presence of symptoms and the G. duodenalis genotype in 108 patients with giardiasis. Patient age ranged from 2 to 72 years old. We found a correlation between assemblage AII and symptomatic infections, and between assemblage B and asymptomatic infections in the overall patient group and in patients less than five years of age. Nevertheless, if only patients of more than five years of age were considered, no statistically significant relationship between assemblage and symptomatic or asymptomatic Giardia infections was found. In these patients, host factors may affect the presence of clinical manifestations more than Giardia assemblage.
authors.affiliation: Servicio de Microbiología y Parasitología, Hospital Clínico Universitario Lozano Blesa, C/ San Juan Bosco 19, 50009, Zaragoza, Spain, juanastrid@yahoo.es.
authors.forename: J
authors.initials: J
authors.lastname: Sahagún
authors.forename: A
authors.initials: A
authors.lastname: Clavel
authors.forename: P
authors.initials: P
authors.lastname: Goñi
authors.forename: C
authors.initials: C
authors.lastname: Seral
authors.forename: M T
authors.initials: MT
authors.lastname: Llorente
authors.forename: F J
authors.initials: FJ
authors.lastname: Castillo
authors.forename: S
authors.initials: S
authors.lastname: Capilla
authors.forename: A
authors.initials: A
authors.lastname: Arias
authors.forename: R
authors.initials: R
authors.lastname: Gómez-Lus
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000818:Animals; D002648:Child; D002675:Child, Preschool; D004403:Dysentery / Q000469:parasitology; D005243:Feces / Q000469:parasitology; D005759:Gastroenteritis / Q000469:parasitology; D005838:Genotype; D016829:Giardia lamblia / Q000235:genetics* / Q000302:isolation & purification; D005873:Giardiasis / Q000469:parasitology* / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D016133:Polymerase Chain Reaction / Q000379:methods; D012150:Polymorphism, Restriction Fragment Length / Q000235:genetics; D037521:Virulence Factors
chemical_list: D037521:Virulence Factors