title: [Changes in the epidemiology of gastroenteritis caused by Salmonella during 2005-2014 in Salamanca, Spain].
abstract: OBJECTIVE
  In Spain there are not many updated population studies about salmonellosis, despite being one of the most common etiologies of acute gastroenteritis (AGEs) caused by bacteria in the world. The aim of the study was to know the most relevant epidemiological features of AGEs produced by Salmonella spp. between 2005 and 2014 in Salamanca (Spain).
  
  
  METHODS
  Descriptive cross-sectional study carried out through review of the clinical microbiologic records at Complejo Asistencial Universitario de Salamanca. Culture, isolation, identification and serotyping were performed according to standard methodology.
  
  
  RESULTS
  Salmonella was isolated in 1,477 patients, representing 47.7% of all positive stool cultures and 53.3% of all income bacterial AGE. The average prevalence was 42.1 cases/100,000 people per year. The mean age was 23 ± 28 years and the median 7 years. 40.2% of all isolates occurred in children under 5 years, with an average prevalence of 45.1 cases/ 10,000 people per year. Overall, the most frequently isolated serotype was S. Typhimurium with 57%, followed by S. Enteritidis with 35.8%.
  
  
  CONCLUSIONS
  The prevalence of Salmonella decreased over time. The group aged 0-4 years had the highest rate throughout the period. However, Salmonella produced the highest percentage of hospitalizations for bacterial AGE. In recent years, S. Typhimurium serotype has replaced S. Enteritidis serotype and predominates in younger patients. It is observed under-reporting of cases of salmonellosis produced in Salamanca despite being mandatory notification of these since 2007.
authors.affiliation: Olaia Cores Calvo, Servicio de Microbiología y Parasitología. Complejo Asistencial Universitario de Salamanca. Paseo de San Vicente 58-182, 37007, Salamanca, Spain. olaiacores@hotmail.com.
authors.forename: Olaia
authors.initials: O
authors.lastname: Cores-Calvo
authors.forename: Luis Félix
authors.initials: LF
authors.lastname: Valero-Juan
authors.forename: Enrique
authors.initials: E
authors.lastname: García-Sánchez
authors.forename: José Elias
authors.initials: JE
authors.lastname: García-Sánchez
authors.forename: María Inmaculada
authors.initials: MI
authors.lastname: García-García
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D005759:Gastroenteritis / Q000453:epidemiology* / Q000382:microbiology; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012478:Salmonella Food Poisoning / Q000453:epidemiology* / Q000382:microbiology; D012480:Salmonella Infections / Q000382:microbiology; D012477:Salmonella enteritidis; D012486:Salmonella typhimurium; D013030:Spain / Q000453:epidemiology; D055815:Young Adult