[The seroepidemiology of the hepatitis A virus in children and adolescents].
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.
Lasheras Lozano
M L
ML
Departamento de Medicina Preventiva y Salud Pública, Universidad Autónoma de Madrid.
Gil Miguel
A
A
Santos Santos
M
M
Rey Calero
J
J
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
D006508:Hepatitis Antibodies
Seroepidemiología del virus de la hepatitis A en niños y adolescentes.