Publications by authors named "Lenita S Krebs"
Objectives: To estimate the prevalence of anti-hepatitis A virus (anti-HAV) antibodies in serum samples from children and adolescents obtained at two clinical pathology laboratories in the city of Porto Alegre, south of Brazil, and to compare findings to those of a study carried out in the 1990s.
Methods: In this cross-sectional study conducted between 2007 and 2008, 465 serum samples obtained from subjects aged 1-19 years were consecutively tested to determine the prevalence of total anti-HAV antibodies. Samples were provided by a public laboratory (group 1) that serves the Unified Health System exclusively, meant to represent the lowest socioeconomic strata, and by a private laboratory (group 2), meant to represent the higher socioeconomic classes.
Objectives: To present the criteria used to define a vaccination schedule for childhood and adolescence, comparing the recommendations of national and international excellence institutions.
Sources Of Data: Review of publications by the Brazilian Society of Pediatrics, the Brazilian Ministry of Health, the Advisory Committee on Immunization Practices (ACIP), the American Academy of Pediatrics (AAP) and the Centers for Disease Control and Prevention (CDC) covering the period from 2000 to 2005.
Summary Of The Findings: Local epidemiological and socioeconomic factors and the available infrastructure often define the priorities of immunobiological recommendations.