title: [The seroepidemiology of the hepatitis A virus in children and adolescents].
abstract: OBJECTIVE
  To know the prevalence of antibodies against hepatitis A virus (anti-HAV) in a population of children and teenagers pertaining to three municipalities of the Autonomous Community of Madrid (CAM).
  
  
  METHODS
  Cross-study. SITE. The study was conducted in three public schools centers of the municipalities located in the Southeast of the (CAM).
  
  
  METHODS
  Students between the ages of 6 and 17 whose parents authorized them to be tested.
  
  
  RESULTS
  The presence of anti-HAV antibodies in the serum of 729 students was investigated. Thirty eight of them presented a positive mark, which indicates a prevalence of 5.34%. In the males, the prevalence was 5.7% and in the females it was 5%.
  
  
  CONCLUSIONS
  The prevalence of anti-HAV antibodies is low in our population, agreeing with the delay in the age that the infection is acquired according to various publications.
authors.affiliation: Departamento de Medicina Preventiva y Salud Pública, Universidad Autónoma de Madrid.
authors.forename: M L
authors.initials: ML
authors.lastname: Lasheras Lozano
authors.forename: A
authors.initials: A
authors.lastname: Gil Miguel
authors.forename: M
authors.initials: M
authors.lastname: Santos Santos
authors.forename: J
authors.initials: J
authors.lastname: Rey Calero
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology* / Q000276:immunology; D006508:Hepatitis Antibodies / Q000097:blood; D006507:Hepatovirus / Q000276:immunology; D006801:Humans; D008297:Male; D015995:Prevalence; D016036:Seroepidemiologic Studies; D017678:Sex Distribution; D013030:Spain / Q000453:epidemiology; D014505:Urban Population / Q000706:statistics & numerical data
chemical_list: D006508:Hepatitis Antibodies
vernacular_title: Seroepidemiología del virus de la hepatitis A en niños y adolescentes.