title: Hepatitis A virus infections in injecting drug users.
authors.forename: N S
authors.initials: NS
authors.lastname: Crowcroft
mesh_terms: D004196:Disease Outbreaks; D004739:England / Q000453:epidemiology; D006506:Hepatitis A / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control* / Q000635:transmission; D022362:Hepatitis A Vaccines / Q000627:therapeutic use; D017957:Hepatitis A Virus, Human / Q000276:immunology; D006801:Humans; D012307:Risk Factors; D012309:Risk-Taking; D015819:Substance Abuse, Intravenous / Q000821:virology*
chemical_list: D022362:Hepatitis A Vaccines