Peer-reviewed article
Age-Specific Prevalence and Vulnerability to Hepatitis B Virus (HBV) Infection in Kaura Namoda, Nigeria
A Umar ·
Summary
Written by AI, not yet AICS's view · claude-sonnet-5-5This study looks at how common hepatitis B infection is across age groups in Kaura Namoda, Zamfara State, Nigeria. It uses existing hospital records from Kauran Namoda General Hospital for 2019 to 2023. Confirmed cases were grouped as children (0-9 years), teenagers (10-19 years) and adults (20 years and older). Adults had the highest prevalence, followed by teenagers, and children had the lowest. The authors suggest that routine infant immunisation probably explains the low rate in children, and they recommend age-specific prevention measures for older groups.
Key points
- Adults had the highest HBV prevalence, followed by teenagers; children aged 0-9 had the lowest.
- The low rate among children is probably due to Nigeria's routine infant immunisation programme.
- Adolescents and adults, many born before mass vaccination, remain vulnerable because of occupational exposure, traditional practices using unsterilised tools, and limited access to catch-up immunisation.
- The report recommends school-based health education for adolescents, mobile outreach for adults, and HBV vaccination in workplace health programmes.
- The report recommends expanding catch-up immunisation for older age groups.
Limitations
The study uses secondary data from a single hospital, so it may not represent the wider community, and the abstract gives no figures for prevalence. The link between infant immunisation and low rates in children is presented as probable, not tested, and no intervention was evaluated.
Abstract
Age is a crucial factor in the transmission and development of infectious illnesses; nevertheless, age-specific patterns in Hepatitis B Virus (HBV) incidence remain little investigated in rural Nigerian populations. This research analyses the age-stratified prevalence of HBV cases in the Kaura Namoda Local Government Area, Zamfara State, Nigeria, utilising hospital-based data from 2019 to 2023. Confirmed HBV cases were classified into three age categories: children (0– 9 years), teenagers (10–19 years), and adults (20 years and older). Analysis of secondary data from Kauran Namoda General Hospital indicated that the adult demographic exhibited the highest prevalence, succeeded by teenagers, whilst children demonstrated the lowest infection rates. The low incidence among children is probably attributable to the efficacy of Nigeria's standard baby immunisation initiatives. Nonetheless, adolescents and adults—many of whom were born before to the advent of mass vaccination—continue to be susceptible due to occupational exposure, customary practices employing unsterilised tools, and restricted access to catch-up immunisation. These findings highlight the necessity of broadening HBV control methods beyond paediatric immunisation. The report advocates for age-specific treatments, including health education aimed at adolescents in schools, mobile outreach services for adults, and the incorporation of HBV immunisation into workplace health programs. Catch-up immunisation initiatives must be expanded to address immunity deficiencies in older demographics. Comprehending the varying impact of HBV across age groups is crucial for attaining equitable and thorough disease management. This study provides critical insights to guide targeted, age-responsive interventions designed to mitigate HBV transmission and attain eradication objectives in high-risk rural communities.