Abstract

QUIAN, Jorge et al. Resultados de la vacunación universal a niños de un año con vacuna de varicela en Montevideo, Uruguay. Arch. Pediatr. Urug. [online]. 2003, vol.74, n.4, pp.259-267. ISSN 1688-1249.

Summary Introduction: universal, compulsory and free vaccination against varicella in children under one year old started in Uruguay in October 1st 1999. High levels of vaccination coverage were attained. The aim of this study is to describe what happened in Montevideo -the capital city, where nearly half of the population lives- in the post-vaccination period. Material and method: this is a descriptive and multi-center study. Children under 15 years old with varicella diagnosis who had a medical visit between January 1st 1997 and December 31st 2002 in Montevideo were included. The visits and the hospitalizations registered in the Pediatrics Public Hospital, a private institution and two mobile medical emergency services in the pre-vaccination period (1997-1999) and the post-vaccination period (2000-2002) were analyzed. Results: the hospitalizations in the public hospital dropped 0,82% (95% CI 0,28-0,40) in the post-vaccination period. The hospitalizations in the Pediatrics Intensive Care Unit and the Emergency Department visits also dropped significantly. In the mobile medical emergency services the visits dropped from 1,62% (95% CI 1,58-1,66) in the pre-vaccination period to 0,64% (95% CI 0,61-0,66) in the post-vaccination period. Conclusions: the systematic vaccination against varicella in children under one year old with high rates of vaccination has been effective. Significant decreases on the number of outpatient visits and hospitalizations were observed, both in the vaccinated children and in children of other age groups.

Keywords : CHICKENPOX; CHICKENPOX VACCINE.

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