ABSTRACT Hepatitis A virus (HAV) infection has been considered one of the leading causes of acute hepatitis. The aim of the present study was to estimate the prevalence of HAV among children and adolescents in a population-based study in the capitals of the States of the North. Southeast and South of Brazil and identify predictive factors for the infection. A multi-stage sampling was ... https://spencertifieders.shop/product-category/security-monitors/