Prevalence of Hepatitis D virus infection among Hepatitis B virus surface antigen positive children attending two selected Hospitals in Jos, Nigeria

Hepatitis B virus is a member of Hepadnaviridae family that cause liver infections in humans. These viral infections are characteristically linked with cirrhosis, chronic hepatitis, and hepatocellular carcinoma that are the leading cause of morbidity and mortality in the population of developing countries including Nigeria. Young children and newborns are more likely to have liver damage early in life and become chronic HBV carriers. This study identified the frequency of hepatitis B and D co-infection in children visiting the emergency pediatric units of Plateau State Specialist Hospital and Bingham University Teaching Hospital in Jos, Plateau State, Nigeria. The virus was screened using immunochromatographic Skytec® HBsAg test strips and Alere chase buffer for the qualitative detection of HBsAg in serum. HBsAg positive samples were confirmed using HBsAg Monolisa ELISA kit. Using an Italian HDV ELISA kit, samples that tested positive for HBsAg were further examined to evaluate the presence of HDV co-infection. The finding of this study revealed that 4.4% of children had HBsAg markers on their bodies.  None of the children with HBV infection were co-infected with HDV. The HBV prevalence was found to be highest in children aged 6 to 10 years. Females had higher levels of HBV seropositivity (5.5%). Risk factors in children included birthplace (native households), failure to check children's HBV status after immunization, and history of jaundice. To properly manage and prevent this infection, it is advised that children should be promptly immunized at birth, their HBV status should be confirmed following immunization and they should be revaccinated if necessary.