Immunological characterization of hepatitis B core antigen antibody among vaccinated adults lacking hepatitis B surface antigen in ethiopia: A multicenter facility-based study.

Adane Adugna, Desalegn Abebaw, Zigale Hibstu Teffera, Yonatan Kindie, Wubetu Yihunie Belay, Getachew Tilaye Mihiret, Altaseb Beyene Kassaw, Mihiret Bogale Abera, Gashaw Abebe, Addis Alem, Zeleke Geto, Mohammed Abdu Seid, Hassen Ahmed Yesuf, Mulu Shiferaw Asfaw, Mohammed Jemal