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Impact of Maternal Tetanus Immunization on Neonatal Tetanus Prevention in Nigeria

Abstract

Neonatal tetanus remains an important maternal and child health concern in settings where maternal immunization coverage, clean delivery practices, and access to quality maternal and newborn healthcare are inadequate. Neonatal tetanus is largely preventable through appropriate maternal tetanus immunization, hygienic delivery and cord-care practices, and timely access to skilled maternal and newborn services. Maternal tetanus immunization during pregnancy can provide protective antibodies that cross the placenta and help protect newborns during the early period of life when they are particularly vulnerable to infection. However, inadequate immunization coverage, incomplete vaccination schedules, missed antenatal opportunities, limited awareness, vaccine hesitancy, geographical barriers, financial constraints, and weaknesses in maternal healthcare services may reduce the effectiveness of neonatal tetanus prevention efforts in Nigeria. Against this background, this study investigates the impact of maternal tetanus immunization on neonatal tetanus prevention in Nigeria. The study will be anchored on the Health Belief Model, Theory of Planned Behavior, and Social Ecological Model. The Health Belief Model explains how mothers' perceptions of susceptibility to tetanus, perceived severity of neonatal tetanus, perceived benefits of maternal immunization, perceived barriers, and cues to action may influence vaccination uptake. The Theory of Planned Behavior explains how mothers' attitudes, subjective norms, perceived behavioural control, and intentions influence their decisions to receive recommended tetanus-containing vaccines during pregnancy. The Social Ecological Model emphasizes the influence of individual, family, community, healthcare-system, and broader environmental factors on maternal immunization and neonatal tetanus prevention. Collectively, these theoretical perspectives provide a suitable framework for explaining how maternal tetanus immunization may contribute to neonatal tetanus prevention in Nigeria. The study will adopt a quantitative analytical cross-sectional, retrospective cohort, or quasi-experimental research design, depending on the availability of immunization and neonatal health records. The study population will comprise pregnant women or mothers and their newborns attending selected antenatal clinics, primary healthcare centres, hospitals, immunization clinics, and maternal and child health programmes across Nigeria. A multistage sampling technique will be used to select states, local government areas, communities, healthcare facilities, and eligible participants. Maternal tetanus immunization will be assessed using indicators such as vaccination status, number of tetanus-containing vaccine doses received, timing of vaccination during pregnancy, completion of recommended vaccination schedules, documented immunization history, and antenatal vaccination uptake. Neonatal tetanus prevention will be assessed using indicators such as maternal protection at delivery, clean delivery practices, hygienic umbilical cord care, skilled birth attendance, appropriate newborn care, maternal knowledge of neonatal tetanus prevention, and occurrence of suspected or confirmed neonatal tetanus where reliable surveillance or clinical records are available. Data will be collected using structured questionnaires, maternal immunization cards, antenatal records, immunization registers, delivery records, newborn health records, surveillance registers, and relevant programme documents. Descriptive statistics will be used to summarize participants' characteristics, maternal immunization coverage, and neonatal tetanus prevention practices. Inferential statistical techniques, including chi-square tests, correlation analysis, and logistic or multiple regression analysis, will be used to determine the relationship between maternal tetanus immunization and neonatal tetanus prevention. Where appropriate, risk ratios or odds ratios may be estimated to assess the association between maternal immunization status and neonatal tetanus-related outcomes. Diagnostic tests will also be conducted to assess the reliability, validity, and robustness of the findings. The study is expected to find that maternal tetanus immunization has a significant positive impact on neonatal tetanus prevention in Nigeria. Mothers who receive appropriate tetanus-containing vaccination during pregnancy are expected to have better protection against maternal and neonatal tetanus and demonstrate greater engagement with other recommended preventive practices. Maternal immunization may provide newborns with passive protection through transplacental transfer of maternal antibodies, particularly during the early period before infants complete their own vaccination schedule. Increased antenatal care attendance and immunization counselling may further improve maternal knowledge of neonatal tetanus prevention, clean delivery practices, hygienic cord care, and timely newborn healthcare. However, low vaccination coverage, incomplete immunization, missed antenatal visits, vaccine hesitancy, inadequate cold-chain and vaccine availability, limited healthcare access, cultural beliefs, and poor documentation may reduce the effectiveness of maternal tetanus immunization programmes. The study therefore expects improved access to and uptake of maternal tetanus immunization, together with clean delivery and cord-care practices, to contribute significantly to neonatal tetanus prevention in Nigeria. The study is expected to contribute to the literature on maternal immunization, neonatal tetanus prevention, maternal and newborn health, antenatal care, vaccine uptake, immunization programmes, clean delivery practices, newborn care, and public health in Nigeria. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, National Primary Health Care Development Agency, National Primary Health Care Development Agency immunization programmes, state ministries of health, primary healthcare centres, hospitals, healthcare workers, community health workers, development partners, and policymakers regarding strategies for strengthening maternal immunization and neonatal tetanus prevention. The study will also provide evidence-based recommendations for improving maternal tetanus vaccination coverage, integrating immunization counselling into antenatal care, strengthening vaccine supply and documentation systems, improving community awareness, addressing barriers to vaccination, promoting skilled and hygienic delivery practices, and strengthening surveillance and follow-up for neonatal tetanus across Nigeria.

Keywords: Maternal tetanus immunization, neonatal tetanus prevention, tetanus vaccination, pregnant women, newborns, antenatal care, maternal immunization, neonatal health, vaccine uptake, clean delivery, Nigeria, public health.