title: Transmission Of childhood tuberculosis risk factors associated with an unidentified index case and outbreak evolution in Barcelona (1987-2007).
abstract: The objective of the study was to examine the factors associated with unidentified tuberculosis (TB) index cases (1987-2007) and to describe outbreaks (2000-2007) of childhood TB cases in Barcelona, Spain. Contact tracing seems to be fundamental in index case identification, but improvement could be made among older children and cases of extrapulmonary TB or pulmonary TB with sputum microscopy results.
authors.affiliation: Epidemiology Service, Public Health Agency of Barcelona, Barcelona, Spain. jnelson@aspb.es
authors.forename: Jeanne L
authors.initials: JL
authors.lastname: Nelson
authors.forename: Antonio
authors.initials: A
authors.lastname: Moreno
authors.forename: Angels
authors.initials: A
authors.lastname: Orcau
authors.forename: Neus
authors.initials: N
authors.lastname: Altet
authors.forename: Antoni
authors.initials: A
authors.lastname: Martínez-Roig
authors.forename: Joan A
authors.initials: JA
authors.lastname: Cayla
authors.forename: Marti
authors.initials: M
authors.lastname: Casals
authors.forename: Juan Pablo
authors.initials: JP
authors.lastname: Millet
authors.forename: Fernando
authors.initials: F
authors.lastname: Moraga-Llop
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D016358:Contact Tracing; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D013030:Spain / Q000453:epidemiology; D013183:Sputum / Q000382:microbiology; D014376:Tuberculosis / Q000453:epidemiology* / Q000635:transmission*