Serological Evidence of Hepatitis B Virus Core Antibody Among Fully Vaccinated Infants in Cameroon: Implications for Perinatal Exposure and Vaccine Response
The hepatitis B virus (HBV) remains highly endemic in Sub-Saharan Africa, where perinatal and early childhood transmission contribute substantially to chronic infection. Although routine infant vaccination is widely implemented, the birth-dose coverage remains inconsistent in many settings. This study, carried out in s...