title: Neisseria meningitidis serogroup W135 in Portugal: presence of the ST-11/ET-37 clonal complex.
abstract: Invasive serogroup W135 Neisseria meningitidis strains were isolated in Portugal between 1995 and 2002. Nine of 12 isolates showed "Hajj-2000"-associated phenotypes and belonged to the ST-11/ET-37 clonal complex. Pulsed-field gel electrophoresis clustered the ST-11/ET-37 isolates together with the "Hajj-2000" strain although the profiles were distinguishable.
authors.affiliation: Antibiotic Resistance Unit, Centre of Bacteriology, National Institute of Health Dr. Ricardo Jorge, Avenida Padre Cruz, 1649-016, Lisbon, Portugal.
authors.forename: E
authors.initials: E
authors.lastname: Ferreira
authors.forename: R
authors.initials: R
authors.lastname: Dias
authors.forename: D
authors.initials: D
authors.lastname: Giorgini
authors.forename: M
authors.initials: M
authors.lastname: Caniça
authors.forename: M-K
authors.initials: MK
authors.lastname: Taha
mesh_terms: D016521:Electrophoresis, Gel, Pulsed-Field; D020869:Gene Expression Profiling; D006801:Humans; D008585:Meningitis, Meningococcal / Q000175:diagnosis* / Q000453:epidemiology; D038582:Neisseria meningitidis, Serogroup W-135 / Q000145:classification / Q000235:genetics / Q000302:isolation & purification; D011174:Portugal / Q000453:epidemiology; D012703:Serotyping