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Effect of Maternal Tetanus Vaccination on Neonatal Tetanus Prevention in Nigeria

Abstract

Neonatal tetanus remains an important public health concern in settings where maternal vaccination coverage, clean delivery practices, umbilical cord care, and access to skilled birth services are inadequate. The disease is caused by Clostridium tetani and may occur when newborns are exposed to bacterial spores during or after delivery, particularly through contaminated instruments or unsafe umbilical cord practices. Neonatal tetanus can cause severe muscle spasms, feeding difficulties, respiratory complications, and death. Maternal tetanus vaccination during pregnancy provides protection by inducing maternal antibodies that can cross the placenta and provide passive immunity to the newborn during the early period of life. In Nigeria, inadequate access to antenatal care, incomplete maternal vaccination, limited awareness, home deliveries, unsafe cord-care practices, and disparities in access to skilled birth attendance may undermine neonatal tetanus prevention. Against this background, this study investigates the effect of maternal tetanus vaccination on neonatal tetanus prevention in Nigeria. The study will be anchored on the Health Belief Model, Social Ecological Model, and Health Systems Framework. The Health Belief Model explains how pregnant women's perceptions of susceptibility to tetanus, perceived severity of neonatal tetanus, perceived benefits of maternal vaccination, perceived barriers, and cues to action may influence uptake of tetanus vaccination during pregnancy. The Social Ecological Model emphasizes the influence of individual, family, community, healthcare, and policy factors on maternal vaccination and newborn health. The Health Systems Framework emphasizes antenatal service delivery, health workforce, vaccine availability, health information, financing, governance, and accessibility as important components of effective maternal and neonatal tetanus prevention programmes. Collectively, these theoretical perspectives provide a suitable framework for explaining how maternal tetanus vaccination may influence neonatal tetanus prevention in Nigeria. The study will adopt a quantitative analytical cohort or quasi-experimental research design. The study population will comprise pregnant women receiving antenatal care in selected healthcare facilities in Nigeria and their newborns. A multistage sampling technique will be used to select states, local government areas, healthcare facilities, antenatal clinics, pregnant women, and eligible mother-newborn pairs. Maternal tetanus vaccination will be assessed using indicators such as vaccination status, number of tetanus-containing vaccine doses received, completion of the recommended vaccination schedule, gestational age at vaccination, timing of vaccination, and documentation of vaccination. Neonatal tetanus prevention will be assessed using indicators such as neonatal tetanus cases, neonatal tetanus-related symptoms, maternal vaccination history, place and conditions of delivery, skilled birth attendance, umbilical cord-care practices, use of sterile delivery instruments, newborn cord-care practices, and referral or treatment outcomes where applicable. Data will be collected using structured questionnaires, antenatal care records, maternal immunization registers, vaccination cards, delivery records, newborn health records, neonatal admission registers, disease surveillance records, and relevant programme documents. Descriptive statistics will be used to summarize maternal and newborn characteristics, vaccination coverage, delivery practices, cord-care practices, and neonatal tetanus-related outcomes. Inferential statistical techniques, including chi-square tests, t-tests, correlation analysis, and logistic or multiple regression analysis where appropriate, will be used to determine the effect of maternal tetanus vaccination on neonatal tetanus prevention. Where a cohort design is adopted, neonatal tetanus outcomes among newborns whose mothers received appropriate tetanus vaccination during pregnancy may be compared with outcomes among newborns whose mothers were inadequately vaccinated or unvaccinated, with relevant maternal, delivery, and newborn factors appropriately controlled. 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 vaccination has a significant positive effect on neonatal tetanus prevention in Nigeria. Newborns whose mothers received adequate tetanus vaccination during pregnancy are expected to have a lower risk of neonatal tetanus than newborns whose mothers were inadequately vaccinated or unvaccinated. Maternal vaccination is expected to provide passive protection to newborns during the early period of life when they are particularly vulnerable to infection. However, maternal vaccination alone may not completely prevent neonatal tetanus because infection is also strongly associated with unsafe delivery conditions and inappropriate umbilical cord care. Therefore, skilled birth attendance, clean delivery practices, sterile cord-cutting instruments, appropriate cord care, and timely recognition and management of suspected cases remain important components of comprehensive prevention. Inadequate maternal vaccination coverage, missed antenatal care opportunities, home delivery, unsafe cord-care practices, limited healthcare access, and low awareness may reduce the effectiveness of neonatal tetanus prevention efforts. The study therefore expects integrated maternal vaccination, safe delivery, and appropriate newborn care interventions to contribute significantly to reducing neonatal tetanus in Nigeria. The study is expected to contribute to the literature on maternal tetanus vaccination, neonatal tetanus prevention, maternal immunization, antenatal care, safe delivery practices, newborn health, immunization programmes, 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, state ministries of health, healthcare facilities, maternal and child health programmes, immunization programme managers, obstetricians, midwives, community health workers, development partners, and policymakers regarding strategies for strengthening neonatal tetanus prevention. The study will also provide evidence-based recommendations for improving maternal tetanus vaccination coverage, strengthening antenatal immunization services, increasing awareness among pregnant women, promoting skilled birth attendance and clean delivery practices, improving umbilical cord-care practices, strengthening neonatal tetanus surveillance, and integrating maternal vaccination with broader maternal, newborn, and child health programmes across Nigeria.

Keywords: Maternal tetanus vaccination, neonatal tetanus prevention, maternal immunization, tetanus-containing vaccine, antenatal care, safe delivery, umbilical cord care, newborn health, immunization, Nigeria, public health.