title: [Salmonella and salmonellosis in the Asturias District, Spain, during a seven year period (1990-1996)].
abstract: BACKGROUND
  Retrospective study of the Salmonella sp. strains and human salmonellosis episodes registered in the Public Health Laboratory of the Principado de Asturias, Spain, over the seven year period 1990-1996.
  
  
  METHODS
  All strains were serotyped; strains of serotypes Typhi and Typhimurium were also phage typed. The strains were grouped according to: sample of origin, age group; season of the year; time distribution, and epidemiological presentation (sporadic episode or outbreak).
  
  
  CONCLUSIONS
  A total of 3,255 Salmonella isolates were registered and conserved in the period under study. They were adscribed to 45 serotypes, being Enteritidis, Typhimurium, Virchow and Hadar (57.1, 26.6, 4.5 and 2%, respectively) the most frequent. 3,193 isolates were collected from clinical samples (corresponding to 3,067 patients), 32 from environmental water or sewage, 28 from food and 2 from animal stools. Relevant epidemiological findings were: the most affected age group was children under 4 years old (32.3%), the season with highest incidence was the summer. The most frequent clinical presentation was the sporadic episode of gastroenteritis (97%). Seventy five outbreaks (22 communitary and 53 family) were registered, being associated with six serotypes: Enteritidis (76%), Typhimurium, Virchow, Hadar, Infantis and Coehl.
authors.affiliation: Laboratorio de Salud Pública, Consejería de Servicios Sociales del Principado de Asturias, Oviedo.
authors.forename: M A
authors.initials: MA
authors.lastname: González-Hevia
authors.forename: M
authors.initials: M
authors.lastname: Cruz Martín
authors.forename: M J
authors.initials: MJ
authors.lastname: Lobato
authors.forename: F
authors.initials: F
authors.lastname: Gutiérrez
authors.forename: P
authors.initials: P
authors.lastname: Solano
authors.forename: J A
authors.initials: JA
authors.lastname: Alvarez-Riesgo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008875:Middle Aged; D012189:Retrospective Studies; D012475:Salmonella / Q000145:classification; D012480:Salmonella Infections / Q000453:epidemiology* / Q000382:microbiology; D012621:Seasons; D012703:Serotyping; D013030:Spain / Q000453:epidemiology
vernacular_title: Salmonella y salmonelosis en el Principado de Asturias durante un período de siete años (1990-1996).