title: Transmission of Norovirus Within Households in Quininde, Ecuador.
abstract: We studied the transmission of norovirus infection in households in Quininde, Ecuador. Among household contacts of norovirus positive children with diarrhea, norovirus negative children with diarrhea and asymptomatic controls, infection attack rates were 33%, 8% and 18%, respectively (N = 45, 36, 83). Infection attack rates were higher when index children had a higher viral load.
authors.affiliation: From the *Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; †Fundación Ecuatoriana Para Investigación en Salud, Quinindé, Esmeraldas Province, Ecuador; ‡Centro de Investigación en Enfermedades Infecciosas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador; and §Institute of Infection and Immunity, St George's University of London, London, UK.
authors.forename: Paul A
authors.initials: PA
authors.lastname: Gastañaduy
authors.forename: Yosselin
authors.initials: Y
authors.lastname: Vicuña
authors.forename: Fabian
authors.initials: F
authors.lastname: Salazar
authors.forename: Nely
authors.initials: N
authors.lastname: Broncano
authors.forename: Nicole
authors.initials: N
authors.lastname: Gregoricus
authors.forename: Jan
authors.initials: J
authors.lastname: Vinjé
authors.forename: Martha
authors.initials: M
authors.lastname: Chico
authors.forename: Umesh D
authors.initials: UD
authors.lastname: Parashar
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Cooper
authors.forename: Ben
authors.initials: B
authors.lastname: Lopman
mesh_terms: D000293:Adolescent; D017250:Caliciviridae Infections / Q000453:epidemiology* / Q000635:transmission*; D002648:Child; D002675:Child, Preschool; D004484:Ecuador / Q000453:epidemiology; D005191:Family Characteristics; D005260:Female; D005759:Gastroenteritis / Q000453:epidemiology* / Q000821:virology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D029322:Norovirus / Q000302:isolation & purification*; D019562:Viral Load