Tetanus Vaccination Coverage Research Articles

Comparison of Wealth-Related Inequality in Tetanus Vaccination Coverage before and during Pregnancy: A Cross-Sectional Analysis of 72 Low- and Middle-Income Countries.

Immunization of pregnant women against tetanus is a key strategy for reducing tetanus morbidity and mortality while also achieving the goal of maternal and neonatal tetanus elimination. Despite substantial progress in improving newborn protection from tetanus at birth through maternal immunization, umbilical cord practices and sterilized and safe deliveries, inequitable gaps in protection remain. Notably, an infant's tetanus protection at birth is comprised of immunization received by the mother during and before the pregnancy (e.g., through childhood vaccination, booster doses, mass vaccination campaigns, or during prior pregnancies). In this work, we examine wealth-related inequalities in maternal tetanus toxoid containing vaccination coverage before pregnancy, during pregnancy, and at birth for 72 low- and middle-income countries with a recent Demographic and Health Survey or Multiple Indicator Cluster Survey (between 2013 and 2022). We summarize coverage levels and absolute and relative inequalities at each time point; compare the relative contributions of inequalities before and during pregnancy to inequalities at birth; and examine associations between inequalities and coverage levels. We present the findings for countries individually and on aggregate, by World Bank country income grouping, as well as by maternal and neonatal tetanus elimination status, finding that most of the inequality in tetanus immunization coverage at birth is introduced during pregnancy. Inequalities in coverage during pregnancy are most pronounced in low- and lower-middle-income countries, and even more so in countries which have not achieved maternal and neonatal tetanus elimination. These findings suggest that pregnancy is a key time of opportunity for equity-oriented interventions to improve maternal tetanus immunization coverage.

Exploring Spatial Variation of Women’s Tetanus Vaccination in Ethiopia: Spatial Analysis of Ethiopian Demographic and Health Survey 2016

Tetanus is a bacterial infection that causes painful muscular contractions throughout the body, usually starting in the jaw. Every year, 15,000 to 30,000 maternal deaths occur due to tetanus related to the delivery process. Exploring variations of women’s tetanus immunization is crucial for programmers’ planning and monitoring. As a result, this study aims to evaluate the spatial distribution of women’s tetanus vaccination coverage and risk areas of women’s tetanus vaccination clustering in Ethiopia. The study used Ethiopian Demographic and Health Survey data, which was conducted in 2016 using the Ethiopia Population and Housing Census 2007 sampling frame. From 15,683 women aged 15 to 49, a sample of 7,193 women was selected using eligible criteria. This study used spatial data analysis. To determine geographical danger zones for tetanus vaccination of women, cluster, hotspot analysis, spatial interpolation, and spatial scan statistics were used. At the regional level of Ethiopia, tetanus vaccination was spatially clustered (Global Moran’s I = 0.066, p = .0001). Western Tigray, eastern SNNP, and northern Oromia were identified as hotspots of poor tetanus vaccine coverage, whereas western Oromia, Afar, and southeast Amhara regions were designated as non-risky areas of Ethiopia. The spatial Bayesian kriging interpolation analysis predicted high-risk areas were the southwestern and eastern parts of Oromia, western Tigray, Harari, and Dire Dawa Western Tigray, the eastern SNNP, southern Amhara, and northern Oromia have been recognized as a significant hotspot. Health workers, programmers, government, and non-governmental organizations in Ethiopia will implement spatially based strategic interventions for women’s tetanus immunization.

Reporting Case Study Results for Neonatal Tetanus Case Investigations

Developing countries are facing numerous health challenges. One of the greatest challenges in this regards is the existence of neonatal tetanus disease. Dera Ismail Khan is educationally backward, and the majority of the population lives in rural areas without proper access to health facilities. This study was aimed to intestate the neonatal tetanus cases. Literature review was undertaken, which suggested the use of case approach; therefore, the study used a case method of investigation. The case setting was District Headquarters Zanana (Women) Hospital Dera Ismail Khan, which is the only mother-child hospital in the southern districts of DIKhan, Tank, and Waziristan. The study reported that Tetanus remains a significant public health concern in the areas, with a high mortality rate and a need for improved prevention and management efforts. The majority of tetanus cases in the area occur among unvaccinated individuals, particularly among those who have not received tetanus toxoid-containing vaccine as part of routine immunization. There are significant disparities in tetanus vaccination coverage by region and socioeconomic status, which contribute to the burden of tetanus in vulnerable populations. Improving tetanus vaccination coverage and strengthening surveillance and management systems are important steps to lessen the burden of tetanus in Pakistan.

Tetanus, diphtheria, and acellular pertussis vaccine coverage in adults with chronic respiratory conditions

BackgroundPertussis is a highly contagious respiratory disease, and those with chronic respiratory illnesses may be at higher risk of infection and severe pertussis. Acellular pertussis–containing vaccines (Tdap) are recommended in the United States for those with risk factors, such as asthma and chronic obstructive pulmonary disease (COPD). ObjectiveTo determine Tdap vaccination rates among people with asthma or COPD compared with matched controls with type 2 diabetes and the general population. MethodsThis observational database study identified adults with asthma or COPD, and their matched controls, from a large US administrative health claims system between January 2008 and December 2014. Vaccination with Tdap was identified using current procedural terminology and national drug codes, and vaccination rates per 1000 patient-years and adjusted rate ratios (RR) were calculated using a generalized linear model with a Poisson distribution and 95% confidence intervals (CI). ResultsVaccination rates were low overall; however, they were slightly higher in asthma than the general population cohort, with vaccination incidence RRs of 1.12 (95% CI, 1.08-1.17), 1.09 (95% CI, 1.06-1.11), and 1.11 (95% CI, 1.07-1.16) in those aged 18 to 44, 45 to 64, and 65 years and older, respectively. However, Tdap vaccination rates were lower in the COPD than in the general population cohort, with vaccination incidence RRs of 0.72 (95% CI, 0.60-0.86), 0.87 (95% CI, 0.83-0.91), and 0.94 (95% CI, 0.92-0.96), respectively. ConclusionPertussis vaccination rates were suboptimal among adults in general and adults with asthma or COPD. Work is needed to boost Tdap vaccination uptake among people with chronic respiratory conditions.

The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon.

Background: The third round of the global pulse survey demonstrated that the abrupt and rapid progression of the COVID-19 pandemic significantly disrupted childhood immunization in many countries. Although Cameroon has reported over 120,000 COVID-19 cases, the reported national childhood vaccination coverage during the pandemic seems to have increased compared to that during the pre-COVID-19 period. Indeed, the first dose of the diphtheria, tetanus, and pertussis-containing vaccine (DTP-1) coverage increased from 85.4% in 2019 to 87.7% in 2020, and DTP-3 coverage increased from 79.5% in 2019 to 81.2% in 2020. The paucity of literature on the impact of COVID-19 on childhood vaccination in COVID-19 hotspot regions poses a challenge in developing a context-specific immunization recovery plan, hence the need to conduct this study. Methodology: We conducted a cross-sectional study using 2019 (pre-pandemic period) and 2020 (pandemic period) district childhood immunization data from the DHIS-2 database, weighted using completeness for each data entry against regional data completeness in 2020. Based on COVID-19 incidence, two hotspot regions were selected, with all districts (56/56) included in the final analysis. The Chi-square test was used to compare DTP-1 and DTP-3 coverage during the pre-pandemic and pandemic periods. Results: In the two hotspot regions, 8247 children missed DTP-1, and 12,896 children did not receive DTP-3 vaccines in the pandemic period compared to the results from the pre-pandemic period. Indeed, there was a significant drop in DTP-1 and DTP-3 coverage of 0.8% (p = 0.0002) and 3.1% (p = 0.0003), respectively, in the Littoral Region. Moreover, the Centre Region reported a 5.7% (p < 0.0001) and 7.6% (p < 0.0001) drop in DTP-1 and DTP-3 coverage, respectively. Most districts in the hotspot regions reported a decline in childhood immunization access (62.5%) and utilization (71.4%). Indeed, in the Littoral Region, 46% (11/24) and 58% (14/24) of districts experienced decreased vaccination access and utilization, respectively. Meanwhile, 75% (24/32) and 81% (26/32) of districts in the Centre Region experienced a drop in vaccination access and utilization, respectively. Conclusion: This study reported a situation where the national immunization indicators mask the impact of COVID-19 on childhood immunization in heavily hit regions. Therefore, this study presents valuable information for ensuring continuous vaccination service delivery during public health emergencies. The findings could also contribute to developing an immunization recovery plan and informing policy on future pandemic preparedness and response.

Seroprotection against tetanus in southern Vietnam.

Ongoing tetanus cases and sporadic outbreaks of vaccine-preventable diseases associated with routine vaccination programmes remain problems in many low and middle-income countries, including Vietnam. With no human-to-human transmission or natural immunity, tetanus antibody levels indicate both individual risk of tetanus and gaps in vaccination programmes. To investigate gaps in immunity to tetanus in Vietnam, a country with a historically high level of tetanus vaccination coverage, tetanus antibodies were measure by ELISA from samples selected from a long-term serum bank, established for the purposes of general-population seroepidemiological investigations in southern Vietnam. Samples were selected from 10 provinces, focussing on age-groups targeted by national vaccination programmes for infants and pregnant women (Expanded Programme on Immunization, EPI, and Maternal and Neonatal Tetanus, MNT). Antibodies were measured from a total of 3864 samples. Highest tetanus antibody concentrations occurred in children under 4years old, over 90% of whom had protective levels. Approximately 70% of children aged 7-12years had protective antibody concentrations although there was variation among provinces. For infants and children, there were no significant differences in tetanus protection between males and females, but for adults aged 20-35years, in five of the ten provinces surveyed, protection against tetanus was higher in females (p<0.05) who are eligible for booster doses under the MNT programme. In seven of ten provinces, antibody concentrations were inversely related to age (p<0.01) and protection of older individuals was generally low. Widespread immunity to tetanus toxoid is seen in infants and young children consistent with the high coverage rates reported for diptheria tetanus toxoid and pertussis (DTP) in Vietnam. However, the lower antibody concentrations seen in older children and men suggest reduced immunity to tetanus in populations not targeted by EPI and MNT programmes.

Tetanus, Diphtheria, and Acellular Pertussis Vaccination Coverage Among Publicly Insured Pregnant Women, U.S., 2016–2019

Vaccination with tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine during pregnancy is highly effective against Bordetella pertussis in young infants. We aimed to evaluate the uptake of maternal tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccination during the recommended gestation period of 27 through 36 weeks among women enrolled in a public medical insurance plan in the U.S. In this analysis using Centers for Medicare and Medicaid Services insurance claims data, we identified women aged 15 through 49 years who delivered a live-born infant from 2016 through 2019. We identified claims for tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccination to calculate the proportion of women who were vaccinated during Weeks 27 through 36 of gestation in each calendar year. We also assessed the average annual maternal tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis coverage by age group, race and ethnicity, U.S. Census region of residence, and plan type. Data were analyzed in 2021. Among 4,318,823 deliveries, the 4-year national average for tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccination was 26%, improving from 22% in 2016 to 31% in 2019 (p<0.001). Within subgroups, the lowest 4-year average coverage was among women aged 15 through 18 years (22%); Black, non-Hispanic (23%) and Hispanic women (24%); those residing in the South (18%); those enrolled in a Children's Health Insurance Program plan (22%); and those covered by a fee-for-service plan (19%). Coverage increased across all subgroups from 2016 through 2019. Although maternal tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis coverage among publicly insured women in the U.S. increased from 2016 through 2019, it remained considerably lower than estimated national coverage, with notable differences by race and ethnicity.

Resource mobilization for tetanus vaccination in Vietnam: Uptake, demand and willingness to pay among women of reproductive age.

Tetanus vaccine coverage in Vietnam has been declining in recent years due to a rapid population growth rate, shrinking budget, and inefficient resource mobilization strategy. This study examined the uptake, demand, and willingness to pay (WTP) for tetanus vaccines in Vietnamese women of reproductive age as well as determined associated factors and assessed the feasibility of the long-term tetanus vaccine resource mobilization scheme. Cross-sectional data were obtained on 807 women of childbearing age in Hanoi, Vietnam in 2016. Tetanus vaccine uptake, demand, and willingness to pay were collected by using a structured questionnaire. Multivariable logistic and interval regression models were used to examine associated factors with vaccine uptake, demand, and WTP. Of 807 participants, 42.4 and 64.8% had sufficient tetanus vaccination (i.e., received at least three doses of vaccine) and were willing to pay for tetanus vaccination. The mean amount of WTP for one dose of tetanus was US$ 7.3 (95% CI = 6.7-7.9). Having children or being aware that the tetanus vaccine was free-of-charge were negatively associated with WTP for tetanus vaccine. Having a high school education, living in a rural area, and not being aware of vaccine prices or being aware that vaccines were provided freely reduced the amount of WTP. WTP increased among women receiving information from friends and relatives. Despite of exemption from the tetanus vaccination programs, this study indicated a low tetanus vaccination coverage and a moderate degree of WTP for tetanus vaccine among Vietnamese women of childbearing age. Target-specific educational and financial support interventions, along with efforts to reduce vaccination costs are critical to improving the vaccine uptake, demand, and WTP for tetanus immunization among women.

Susceptibility to Vaccine-Preventable Diseases in Four Districts of Xaysomboun Province, Lao People's Democratic Republic.

Xaysomboun province has some of the lowest health indicators in Lao People’s Democratic Republic (PDR). This cross-sectional study aimed to determine the vaccination, susceptibility and exposure status of the population to hepatitis B virus (HBV), measles, rubella, and tetanus. Participants aged 5 years and older were randomly selected from four districts. From each enrolled participant, demographic data and 5 mL of blood sample were taken. HBV surface antigen (HBsAg) and antibodies against HBV, measles, rubella, and tetanus were detected by ELISA. A total of 363 participants (age 5 to 80 years) were included. HBV exposure, as determined by anti-HBV core (anti-HBc) antibodies, was 56.2% overall, and was significantly higher among those aged ≥21 years (78.1%). HBsAg was detected in 9.4% overall and increased to 20% in ages 31–40 years. Only 13.8% of participants had serology indicative of vaccination (anti-HBs positive, anti-HBc negative). Seroprotection against measles was 74.6% overall but only 41.7% in children aged 5–10 years. Anti-rubella IgG was 94.2% overall and high in all age groups. Tetanus seroprevalence was only 47.4% overall but significantly higher in females aged 31–40 (75.6%). We suggest strengthening of routine and booster HBV, measles, and tetanus vaccine coverage in Xaysomboun province.

Factors that negatively interfere with the coverage of antitetanus vaccination in the elderly: an integrative review

Tetanus is an infectious and non-contagious disease capable of causing a state of hyperexcitability in the central nervous system. In order to prevent the development of the infection, the tetanus vaccine was implemented. However, for effective protection, a complete and adequate immunization is necessary. The aim of the study was to identify the factors that can interfere with the tetanus vaccination scheme in the elderly population. This is an integrative, retrospective, descriptive-exploratory literature review with a qualitative approach, carried out through the Portal de Periódicos CAPES. After the search, 2,313 studies were found, of which 18 were eligible for the final sample. Factors that negatively affect tetanus vaccine coverage in the elderly population were identified as the number of incomplete doses and the absence of tetanus booster; absence of vaccination campaigns and socioeconomic and demographic aspects. Therefore, it was determined that tetanus is a disease that can cause serious complications and concerns to health systems, with the elderly being the population most affected by the infection, both due to changes in their physiology and the decrease in the levels of protective antibodies.

Healthcare personnel’s attitude and coverage about tetanus vaccination in Turkey: a multicenter study

ABSTRACT The tetanus vaccine is not routinely given to Turkish adults. Protective tetanus immunity decreases with age. Health-care personnel (HCPs), who are role models in the field of health, are a target group in order to achieve a higher rate of tetanus vaccination in the community. This study was designed to evaluate attitudes and coverage regarding tetanus vaccination among a large sample of Turkish HCPs. This cross-sectional epidemiologic study was conducted from July to August 2019. A questionnaire was sent to HCPs using social media. Of the 10,644 HCPs included in the study, 65% were female. Overall, the tetanus vaccination coverage (TVC) among HCPs was 78.5% (95% CI: 77.7%-79.3%). TVC was significantly higher among physicians [83.4% (95% CI: 82%-84.6%); p < .001] compared with all other HCPs except nurses. Older age (≥40 years) and length of professional experience were significantly correlated with TVC. Of the 8353 HCPs who received tetanus vaccines during their lifetime, 73.03% received tetanus vaccination in the past 10 years. The self-vaccination rate for protection against tetanus was 13.1%. Acute injuries (25.42%) and pregnancy (23.9%) were the most common reasons for having the tetanus vaccine. One-third (33.7%) of HCPs did not have information about whether pregnant women could receive tetanus vaccinations. This survey study provided excellent baseline information about HCPs’ coverage rates and attitudes regarding tetanus vaccination. The present results suggested that tetanus boosters for HCPs should be established as soon as possible, and revealed that the HCPs younger than 30 years with relatively less professional experience and all other HCPs except nurses and physicians should be identified as the target population for future intervention programs.

Factors associated with maternal tetanus vaccination in Myanmar: An analysis of demographic and health survey data

BackgroundTetanus toxoid vaccination is a life-saving maternal and child health intervention. Understanding gaps in maternal vaccination coverage is key to informing progress towards universal health coverage. We assessed the vaccination coverage in Myanmar and investigated factors associated with being unvaccinated. MethodIn this cross-sectional analysis of 2015–16 Demographic and Health Survey data including women aged 15–49 years with at least one childbirth in the last five years. The outcome maternal tetanus vaccination during her last pregnancy, defined as protected against neonatal tetanus based on the Myanmar National Guidelines for Antenatal Care. We also examined mothers who missed a second dose of tetanus toxoid containing vaccine (TTCV) by states and regions. We used logistic regression models to assess factors associated with being unvaccinated. ResultsOverall maternal tetanus vaccination coverage was 72%. At subnational level, the percent unvaccinated was highest in Shan State (42%), followed by Magway Region (33%), Kayin State (33%), and Sagaing Region (32%). The percentage of mothers who missed a second dose of TTCV was high predominantly in regions, rather than states. We found that the percentage of unvaccinated mothers was higher among younger mothers, and mothers with lower educational attainment. No antenatal care (ANC) or receiving ANC in non-public healthcare facilities were strongly associated with being unvaccinated. Differences in percent unvaccinated by maternal age were largely mediated through their healthcare access, particularly ANC services. InterpretationWe identified regional, structural, and individual differences in maternal tetanus vaccination coverage. Factors influencing mothers who missed a second dose of TTCV warrant further investigation. Achieving universal coverage of maternal tetanus vaccination will largely depend on the ability to provide accessible antenatal care to most women who do not currently receive it.

Elimination of Neonatal Tetanus in Rural Central African Republic: Issues and Challenges

Like other countries in the world, the Central African Republic is committed to the fight against the elimination of neonatal tetanus (NNT). Despite the efforts made, the number of NNT cases continues to grow. The objective of this work was to describe the epidemiological profile and identify the risk factors for the occurrence of NNT in rural Central African areas in order to improve control strategies in this context. This was a case-control study of newborns with tetanus (case) or not (controls), conducted between 2014 and 2019 at the Gazi Secondary Health Center. A questionnaire collected socio-demographic and clinical data that were entered and analyzed using the Epi info 7 software. Multiple logistic regression used to establish the relationship between the occurrence of tetanus and the characteristics of the mother and the newborn, through the ORs and their 95% CI. A total of 332 newborns were included, including 166 cases of NNT and 166 controls. The average age was 7.8 ±3.6 days. The incidence of NNT was 2.7 and 5.2 cases per 1000 live births in 2014 and 2019 respectively. The main risk factors for NNT were new males (p=0.04), low maternal education (p=0.001), separation from health care (p=0.006), primiparity (p&lt;0.001), low number of antenatal visits (p&lt;0.003) and low tetanus vaccine coverage (p&lt;0.001). According to newborn care practices: home birth (p=0.002), delivery by unskilled personnel (p&lt;0.001), umbilical cord septic section (p&lt;0.001), no cord dressing (p&lt;0.001) and septic dressing (p=0.012) were statistically associated with the occurrence of NNT in our context. In rural Central African Africa, the incidence of neonatal tetanus remains high and the risk factors are multiple. Effective health promotion measures can contribute to the elimination of this disease.

Tetanus vaccine coverage in recommended and more than recommended doses among mothers in a West Cameroon health district: a cross sectional study

Background: Vaccination is the best way to protect newborns and mothers against tetanus. The number of doses of Td vaccine recommended by the Expanded Program of Immunization is based on documented protective immune response. During this decade, the Foumban Health District (FHD) was the seat of an epidemic despite the satisfactory administrative immunization coverage. This study was conducted in 2019 in the FHD to assess tetanus vaccine coverage among mothers for their last pregnancy and the cumulative number of vaccine doses administered to the mothers. Method: This was a descriptive cross-sectional study conducted in the FHD in 2019. Mothers living in the district with at least one child younger than five years were included and were selected by random stratified cluster sampling. Trained surveyors used a face-to-face questionnaire, data extraction grid and data-tracking grid to review and collect data from antenatal care booklets, vaccination cards and the women’s own reports of immunization. The immunization coverage per vaccine dose and vaccination completeness rate were estimated. Results: From 621 women visited, 602 (96.9%) responded. A total of 176/511 women (34.4%) had evidence of vaccination. For the last pregnancy, the two-dose immunization proportion was 21.7% (111/511) for documented coverage and 47.6% (243/511) for undocumented coverage. 306/570 women (53.7%) had received more than the recommended five doses necessary for lifetime protection. The recruitment, two and five doses completeness rates were 99.9% (569/570), 95.8% (546/570) and 65.3% (372/570), respectively. Conclusion: More than half of mothers received more doses of tetanus toxoid vaccine than necessary in FHD. This increased the resources needed and the cost of vaccination. Health personnel should be trained and supervised to assess pregnant women’s vaccination status before planning the number of vaccine doses to be administered during pregnancy.

DTaP combination vaccine use and adherence: A retrospective cohort study

Despite universal recommendation of the 4-dose diphtheria, tetanus, and pertussis (DTaP) vaccine series, coverage and timeliness in the US remain suboptimal. DTaP-containing combination vaccines (i.e. quadrivalent and pentavalent) are presumed to improve vaccine coverage rates and timeliness, but research supporting this claim is limited. We sought to investigate the associations between DTaP-containing vaccine use and adherence to the recommended DTaP immunization schedule among children in the US. Using a large claims database, we identified privately insured children born between 2009 and 2016 that received ≥1 DTaP-containing vaccine and had ≥24 months of enrollment from birth, excluding those with DTaP vaccinations not aligned with approved dose indications. Children were classified by DTaP-containing vaccine receipt: combination vaccines only, stand-alone vaccines only, or a mixture of both. Outcome measures included: 1) completion of the 4-dose series and 2) timely receipt of doses. Outcomes were adjusted for gender, birth year, race, and socioeconomic status. The study cohort contained 412,441 children. Of these, 40.5% (167,084) received combination vaccines only, 14.9% (61,342) received stand-alone vaccines only, and 44.6% (184,015) received a mixture of both. Combination vaccine recipients were nearly 3 times as likely to complete the 4-dose series (OR 2.93 (95% CI: 2.88, 2.99)) and for all doses received, more than 4 times as likely to receive doses on time (OR 4.12 (4.04, 4.21), relative to stand-alone vaccine recipients. Significance disparities in adherence were also observed, where minorities were up to 30% less likely (OR 0.70 (0.68, 0.71)) to complete the 4-dose series and up to 27% less likely (OR 0.73 (0.72, 0.75)) to receive doses on time, relative to white children. Our findings demonstrated that adherence to the recommended DTaP immunization schedule was significantly greater among combination vaccine recipients, relative to stand-alone recipients. Further research is needed to investigate underlying causes of disparities in adherence.

Factors Associated with Maternal Tetanus Vaccination in Myanmar: An Analysis of Demographic and Health Survey Data

Background: Tetanus toxoid vaccination is a life-saving maternal and child health intervention. Understanding gaps in maternal vaccination coverage is key to informing progress towards universal health coverage. We assessed maternal tetanus vaccination coverage in Myanmar and investigated factors associated with being unvaccinated. Method: We analysed 2015-16 Demographic and Health Survey data including women aged 15-49 years with at least one childbirth in the last five years. The outcome was self-reported receipt of tetanus vaccine at least once during the last pregnancy. We used logistic regression models to assess factors associated with being unvaccinated. Results: Overall maternal tetanus vaccination coverage was 85·7%. Sub-national coverage was lowest in the predominantly ethnic minority states of Shan, Kayin, and Chin at 69·6%, 77·4%, and 79·9%, respectively. Factors associated with a lack of vaccination were: not receiving antenatal care (odds ratio (OR): 18·99, 95% confidence interval (CI): 14·21, 25·39); receiving antenatal care at home (OR: 2·05, 95% CI: 1·46, 2·88), private and non-governmental organization clinics (OR: 2·88, 95% CI: 1·81, 4·58, compared to public facilities); and not wanting to go to a health facility alone (OR: 1·53, 95% CI: 1·14, 2·06). Higher educational attainment was associated with lower odds of being unvaccinated (OR: 0·48, 95% CI: 0·32, 0·70 for secondary relative to no education). Interpretation: We identified regional, structural, and individual differences in maternal tetanus vaccination coverage. Achieving universal coverage of maternal tetanus vaccination will largely depend on the ability to provide accessible antenatal care to most women who do not currently receive it. Funding Statement: No funding was received for this work. Declaration of Interests: We declare no competing interest. Ethics Approval Statement: Ethical approval was not required as this is a secondary analysis of publicly available data.

The association between area of residence and sufficient antenatal tetanus vaccination in women ages 15\u201349 in Afghanistan: an analysis of the 2015 DHS dataset

BackgroundNeonatal tetanus (NT) is a deadly nervous system disorder that is endemic to Afghanistan. Administering sufficient doses of tetanus toxoid containing vaccine (TTCV) during pregnancy can pass antibodies to the fetus and therefore prevent NT. Using survey data, we investigated the association between area of residence (urban or rural) and sufficient antenatal TTCV coverage among women aged 15–49 years in Afghanistan during their most recent pregnancy in the past 5 years that resulted in a live birth. Mother’s education level was also assessed as a potential effect modifier.MethodsSecondary analysis was performed on data from the 2015 Afghanistan Demographic and Health Survey (AfDHS). The 2015 AfDHS was a nationally representative survey with participants selected in a stratified two-stage sample design from urban and rural areas across Afghanistan’s 34 provinces. Data were analyzed on 19,737 women ages 15–49 that had a live birth in the 5 years preceding the survey. The relationship between area of residence and sufficient antenatal TTCV was assessed in a multivariable logistic regression model, adjusting for several confounding variables.Results55.1% (95% CI = 51.6–58.5%) of urban women and 53.9% (95% CI = 49.7–57.9%) of rural women had sufficient tetanus vaccination coverage in their most recent pregnancy. In multivariate analysis, there was strong evidence for greater odds of sufficient antenatal tetanus vaccination in rural areas (OR = 1.62; 95% CI = 1.18–2.24, p = 0.003). There was no effect modification on this association by mother’s education level.ConclusionsWomen in rural areas of Afghanistan have greater odds of receiving sufficient antenatal tetanus vaccination than women in urban areas. Further study into factors contributing to this urban-rural disparity is needed. Targeted antenatal tetanus vaccination strategies for urban and rural women will be necessary as Afghanistan continues to work towards NT eradication.

Impact of a Catch-Up Strategy of DT-IPV Vaccination during Hospitalization on Vaccination Coverage among People Over 65 Years of Age in France: The HOSPIVAC Study (Vaccination during Hospitalization)

In France, diphtheria tetanus and inactivated polio vaccine (DT-IPV) coverage and immunization are insufficient in the elderly and decrease with age. The principal objective of this study was to assess the impact of a strategy of catch-up DT-IPV vaccination during hospitalization in people over the age of 65 years in central France (the Sarthe region). We performed a prospective, single-center, cluster-randomized study (four hospital wards). We included patients aged ≥65 years, without mental impairment, contraindication and who accepted to participate, hospitalized in the internal medicine wards in Le Mans Hospital from 28 May 2018 to 27 May 2019. The DT-IPV vaccination status of the patients was determined at inclusion and the wards were randomized (intervention and control). In the intervention group, vaccination was up-dated during hospitalization. In case of temporary contraindication, vaccination was prescribed at hospital discharge. Patients hospitalized in the control wards received oral information only. Final immunization status was determined by calling the patient’s general practitioner two months after hospital discharge. One hundred and fifty seven patients were included: 73 in the intervention and 84 in the control arm. Baseline immunization coverage was 46.5%. Vaccination coverage increased from 56.2% to 80.8% in the intervention group and from 38.1% to 40.5% in the control group (p < 0.001). Having received sufficient information from the general practitioner was the only factor associated with vaccination being up-to-date in uni- and multivariate analysis: OR = 5.07 [2.45–10.51]. In a setting of low vaccination coverage DT-IPV vaccination during hospitalization is an effective catch-up strategy.

Antenatal care service delivery and factors affecting effective tetanus vaccine coverage in low- and middle-income countries: Results of the Maternal Immunisation and Antenatal Care Situational analysis (MIACSA) project

ObjectivesTo map the integration of existing maternal tetanus immunization programmes within antenatal care (ANC) services for pregnant women in low- and middle-income countries (LMICs) and to identify and understand the challenges, barriers and facilitators associated with high performance maternal vaccine service delivery. DesignA mixed methods, cross sectional study with four data collection phases including a desk review, online survey, telephone and face-to-face interviews and in country visits was undertaken between 2016 and 2018. Associations of different service delivery process components with protection at birth (PAB) and with country groups were established. PAB was defined as the proportion of neonates protected at birth against neonatal tetanus. Regression analysis and structural equation modelling was used to assess associations of different variables with maternal tetanus immunization coverage. Latent class analysis (LCA), was used to group country performance for maternal immunization, and to address the problem of multicollinearity. SettingLMICs. ResultsThe majority of LMICs had a policy on recommended number of ANC visits, however most were yet to implement the WHO guidelines recommending eight ANC contacts. Countries that recommended > 4 ANC contacts were more likely to have high PAB > 90%. Passive disease surveillance was the most common form of disease surveillance performed but the maternal and neonatal morbidity and mortality indicators recorded differed between countries. The presence of user fees for antenatal care and maternal immunization was significantly associated with lower PAB (<90%). ConclusionsRecommendations include implementing the current WHO ANC guideline to facilitate increased opportunities for vaccination during each pregnancy. Improved utilisation of ANC services by increasing the demand side by increasing the quality of services, reducing any associated costs and supporting user fee exemptions, or the supply side can also enhance utilisation of ANC services which are positioned as an ideal platform for delivery of maternal vaccines.

Tetanus vaccine coverage in recommended and more than recommended doses among mothers in a West Cameroon health district: a cross sectional study

Background: Vaccination is the best way to protect newborns and mothers against tetanus. The number of doses recommended by the Expanded Program of Immunization is based on documented protective immune response. This study was conducted in 2019 in the Foumban Health District (FHD) to assess tetanus vaccine coverage among mothers for their last pregnancy and the cumulative number of vaccine doses administered to the mothers. Method: This was a descriptive cross-sectional study conducted in the FHD. Mothers living in the district with at least one child younger than five years were included and were selected by random stratified cluster sampling. Trained surveyors used a face-to-face questionnaire, data extraction grid and data-tracking grid to review and collect data from antenatal care booklets, vaccination cards and the women’s own reports of immunization. The immunization coverage per vaccine dose and vaccination completeness rate were estimated. Results: From 621 women visited, 602 (96.9%) responded. A total of 176/511 women (34.4%) had evidence of vaccination. For the last pregnancy, the two-dose immunization proportion was 21.7% (111/511) for documented coverage and 47.6% (243/511) for undocumented coverage. 306/570 women (53.7%) had received more than the recommended five doses necessary for lifetime protection. The recruitment, two and five doses completeness rates were 99.9% (569/570), 95.8% (546/570) and 65.3% (372/570), respectively. Conclusion: More than half of mothers received more doses of tetanus toxoid vaccine than necessary in FHD. This increased the resources needed and the cost of vaccination. Health personnel should be trained and supervised to assess pregnant women’s vaccination status before planning the number of vaccine doses to be administered during pregnancy.