Hepatitis B virus (HBV) infection is still a global public health problem. As of 2019, there were 296 million people chronically infected with HBV, resulting in nearly 1 million deaths from decompensated cirrhosis or hepatocellular carcinoma. Seroprevalence of HBV among pregnant women in Tanzania ranged between 3.8% and 8.03%. However, data on HBV infection in HIV-infected pregnant women is limited. We determined seroprevalence and factors associated with hepatitis B virus infection among pregnant women living with HIV (LWHIV) attending Prevention of mother to child transmission (PMTCT) in selected health facilities in Mtwara region, Tanzania.

