[Comparison of antibody persistence after two-dose and three-dose hepatitis B vaccines for 20 years among people aged 15-40 years in Shandong Province]. | Clini

Objective: To investigate the antibody persistence and influencing factors of the simplified two-dose and standard three-dose hepatitis B vaccine (HepB) among people aged 15-40 years after 20 years of primary immunization. Methods: In November 2003, a total of 1 994 healthy peopl

Medical Literature · Updated 2026-08-17

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