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How immigration can change the prevalence of HBV infection in an urban area of Northern Italy

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Author(s): Massimo De Paschale | Maria Teresa Manco | Luisa Belvisi | Carlo Magnani | Tiziana Re | Paolo ViganĂ² | Sara Biagiotti | Francesca Capelli | Antonino Mazzone | Maria Pia Baldacci | Aldo Ferrara | Anna Lisa Neri | Carlo Maria Guastoni | Riccardo Armando Bonazzina | Bruno Brando | Pierangelo Clerici

Journal: Microbiology Research
ISSN 2036-7473

Volume: 2;
Issue: 2;
Start page: e21;
Date: 2011;
Original page

Keywords: HBV epidemiology | HBsAg | vaccination

ABSTRACT
The introduction of HBV vaccination in Italy has led to a decline in new HBV infections. Increasing immigration over recent years suggests a change in short-term epidemiology of HBV. The aim of this study was to assess the prevalence of HBV infection in the general population living in the catchment area of Legnano Hospital (Northern Italy). In the period 2007-2008, 22,758 inpatients and outpatients were examined for Hepatitis B surface antigen (HBsAg), of whom 1,654 (7.3%) were of foreign origin. Of the 488 patients who were positive for HBsAg (2.1%), 381 (1.8%) were Italian and 107 (6.5%) were born in other countries. In terms of age, the prevalence of HBsAg was significantly higher among non- Italians in every age group (other than those aged >60 and

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