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- 2018
Persistence of hepatitis B surface antibody and immune memory to hepatitis B vaccine among medical college students in MadinahDOI: 10.5144/0256-4947.2018.413 Abstract: Globally, about 300 million people are infected with hepatitis B virus (HBV). Among the effective approaches to fight HBV infection is immunization. In 1989, an obligatory hepatitis B vaccine program was launched in Saudi Arabia
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