“Detection the Persistence of Antibodies of Hepatitis B Surface Antigen Among Healthy Individuals Vaccinated With Hepatitis B Virus Vaccine in Mukalla- Hadhramout Yemen: Detection the Persistence of Antibodies of Hepatitis B Surface Antigen Among Healthy Individuals Vaccinated With Hepatitis B Virus Vaccine in Mukalla- Hadhramout Yemen”. Hadhramout University Journal of Natural & Applied Sciences 22, no. 2 (March 14, 2026). Accessed July 24, 2026. https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/885.