title: Let It "B"? The role of Hepatitis B universal vaccination among italian problematic drug users.
abstract: Hepatitis B virus (HBV) hepatitis is extremely common among problematic drug users (DUs). As of 2012, 47 of the 53 European countries had implemented a universal hepatitis B vaccination programme, a scenario that could radically change its spread. Even so, drug users are still one of the main groups at risk of being infected by HBV, exposing the fact that universal vaccination still has not managed to reach an optimal level of contagion protection. In order to evaluate the role of universal HBV vaccination in protecting against risk behaviour related to the use of illicit drugs, a group of 748 DUs, 511 male and 237 female, was tested for HBV markers, at their first access to public addiction clinics in the metropolitan area of Bologna, Italy. 487 were born after 1981, so they were eligible to have received HBV vaccination in adolescence or at birth; in these subjects antibodies against HBV core antigen had the significant prevalence of 6.2%. Universal HBV vaccination has shown evidence of protecting against infection in the general population. These results, amongst the first to evaluate actual protection in DUs vaccinated at birth or during adolescence, show that compulsory universal vaccination does not solve the problem of HBV transmission in the most at risk groups and that additional strategies must be studied and implemented to address this issue.
authors: Department of Internal Medicine, Addiction Unit, Verona University Hospital, Verona 37134, Italy. fabio.lugoboni@ospedaleuniverona.it.
authors: Fabio
authors: F
authors: Lugoboni
authors: Department of mental health and addictions, Epidemiological Observatory on Pathological Addictions, Bologna 40121, Italy. raimondo.pavarin@ausl.bologna.it.
authors: Raimondo Maria
authors: RM
authors: Pavarin
authors: Department of Internal Medicine, Addiction Unit, Verona University Hospital, Verona 37134, Italy. chiara.resentera@gmail.com.
authors: Chiara
authors: C
authors: Resentera
authors: Department of mental health and addictions, Addiction Clinic, Bologna 40121, Italy. daniele.gambini@ausl.bologna.it.
authors: Daniele
authors: D
authors: Gambini
mesh_terms: D000293:Adolescent; D000328:Adult; D003430:Cross-Sectional Studies; D055030:Drug Users; D005260:Female; D006678:HIV / Q000302:isolation & purification; D015658:HIV Infections / Q000453:epidemiology* / Q000821:virology; D016174:Hepacivirus / Q000302:isolation & purification; D006509:Hepatitis B / Q000453:epidemiology* / Q000821:virology; D017325:Hepatitis B Vaccines / Q000008:administration & dosage / Q000494:pharmacology*; D006515:Hepatitis B virus / Q000276:immunology* / Q000302:isolation & purification; D006526:Hepatitis C / Q000453:epidemiology* / Q000821:virology; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D055815:Young Adult
chemical_list: D017325:Hepatitis B Vaccines