Gholamreza Sharifzadeh

[ 1 ] - Persistence of immunity to hepatitis B vaccine as infants, 17 years earlier

Background: In Iran scince 1992, hepatitis B vaccination was a part of the national vaccination program. Hepatitis B vaccination is effective in the epidemiology of hepatitis B. The aim ofthis study was to evaluate the long – term persistence of immunity. Methods: This cross-sectional analytical study was conducted on children and adolescents aged between 6-18 years in Birjand, who recei...