Decaying of SARS-CoV-2 Antibodies with Time after Taking Booster Dose among the Doctors of Bangabandhu Sheikh Mujib Medical University

Background: SARS-CoV-2, the virus responsible for COVID-19, has prompted global vaccination efforts, including booster doses to enhance immunity. The persistence of antibodies following booster vaccination is a critical area of study. The decay rate of antibodies can vary based on vaccine type, age, and individual immune response. This study aimed to evaluate the temporal decline of SARS-CoV-2 antibodies post-booster dose among the doctors at Bangabandhu Sheikh Mujib Medical University. Methods: This prospective observational study was conducted at the Department of Biochemistry & Molecular Biology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from March 2022 to February 2023. A total of 80 doctors of BSMMU aged between 25 to 65 years who had taken the COVID-19 booster dose about 6–8…