Andrea C Carcelen, Molly Sauer, Pooja Sangha, Porcia Manandhar, Natalya Kostandova, Alex C Kong, Rachel Larson, Rupali J Limaye, William J Moss
{"title":"Exploring supplemental immunization strategies to reach zero-dose children in low- and middle-income countries: a scoping review.","authors":"Andrea C Carcelen, Molly Sauer, Pooja Sangha, Porcia Manandhar, Natalya Kostandova, Alex C Kong, Rachel Larson, Rupali J Limaye, William J Moss","doi":"10.1177/25151355261442364","DOIUrl":"https://doi.org/10.1177/25151355261442364","url":null,"abstract":"<p><strong>Background: </strong>Nationwide measles immunization campaigns are resource-intensive yet can fail to reach the same children who are not reached by routine immunization services. Alternative approaches to better reach missed communities and improve efficiency focus on identifying and reaching unvaccinated, \"zero-dose\" children. Understanding the scope and impact of these strategies can inform approaches to fill immunity gaps and reduce measles disease burden.</p><p><strong>Objectives: </strong>We conducted a scoping review to map the existing literature on supplemental strategies used to reach zero-dose or under-vaccinated children in low- and lower-middle-income countries (LLMICs).</p><p><strong>Eligibility criteria: </strong>Our review focused on the \"reach\" component of the Identify-Reach-Monitor-Measure-Advocate (IRMMA) framework. We included literature describing vaccination interventions for measles-rubella, polio, and the Essential Program on Immunization (EPI) in LLMICs published from 2010 to 2021 in multiple languages. We excluded papers that solely focused on non-selective national vaccination campaigns.</p><p><strong>Sources of evidence: </strong>We searched peer-reviewed databases (PubMed, WorldWideScience, and Scopus) and gray literature in World Health Organization (WHO) regional databases, the WHO Institutional Repository for Information Sharing, and John Snow, Inc. resource libraries.</p><p><strong>Charting methods: </strong>Screening and extraction were conducted in Covidence. We iteratively coded, classified, and analyzed extracted data. Interventions were classified into the IRMMA framework categories: demand generation, human resources, supply chain, and service delivery.</p><p><strong>Results: </strong>Of 9450 articles screened, 185 met criteria for inclusion in the final analytic set. Strategies consisted of enhancements to the routine immunization program, with service delivery being the most frequent, followed by demand generation. Many studies described the integration of multiple strategies, offering opportunities to maximize reach and impact.</p><p><strong>Conclusion: </strong>The vaccination strategies other than campaigns described in this review have been implemented in multiple countries; some demonstrate greater potential to reach zero-dose and under-vaccinated children. In the face of an evolving funding environment, prioritizing interventions that are most likely to reach unvaccinated children is key.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"14 ","pages":"25151355261442364"},"PeriodicalIF":0.0,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13129340/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147821672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rabies post-exposure prophylaxis in India: a SWOT analysis.","authors":"Geeta Pardeshi, Priyanka Sharma, Anjana Ittiel","doi":"10.1177/25151355251410780","DOIUrl":"10.1177/25151355251410780","url":null,"abstract":"<p><p>Rabies remains a pressing public health issue, particularly in countries like India, where it inflicts a significant toll on marginalised communities. With approximately 20,000 deaths annually due to rabies, the disease underscores the urgency for effective prevention strategies. Despite the existence of post-exposure prophylaxis (PEP), rabies continues to claim lives, highlighting the importance of understanding and addressing the challenges in its implementation. This study aims to conduct a comprehensive analysis of strengths, weaknesses, opportunities and threats (SWOT) of India's rabies PEP programme, emphasising the urgent need for enhanced strategies to combat this preventable yet incurable disease. A thorough review of scientific literature, governmental guidelines, programme documents and media reports related to rabies and PEP was undertaken. The SWOT matrix was employed to categorise the identified factors influencing PEP administration. The analysis revealed both strengths and weaknesses inherent in the current PEP programme. Despite the availability of effective biological products and political commitment, challenges such as inadequate inventory management, delayed dissemination of guidelines, poor awareness, inadequate infrastructure and budgetary constraints persist. However, opportunities for improvement, including information dissemination and technological innovations, were identified. Threats such as pandemics and misleading media reports pose additional challenges to rabies control efforts. By emphasising the preventable yet incurable nature of rabies and highlighting the annual toll it exacts on human lives, this study underscores the urgency for effective and coordinated public health interventions to achieve the goal of dog-mediated rabies elimination by 2030. The findings underscore the critical importance of addressing weaknesses and capitalising on opportunities to strengthen rabies control strategies in India. Proactive measures are essential to enhance inventory management, ensure guidelines' dissemination, improve awareness levels, strengthen infrastructure and leverage technological advancements. Additionally, addressing threats such as pandemics and media misinformation requires collaborative efforts and proactive risk communication strategies. Through a targeted approach focused on enhancing rabies PEP implementation along with other measures such as community engagement to build awareness about rabies, and canine vaccination, including mass dog vaccination, India can significantly reduce the burden of rabies-related mortality.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"14 ","pages":"25151355251410780"},"PeriodicalIF":0.0,"publicationDate":"2026-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12759123/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145901205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tayyaba Naseem Abbasi, Muhammad Saad Khan, Erum Siddiqui, Muhammad Ahmed Zaheer, Areeba Tabassum, Naila Zainab, Aminath Waafira
{"title":"Exploring the safety and immunogenicity of the VLA15 vaccine among healthy or high-risk population: a systematic review and meta-analysis of randomized controlled trials.","authors":"Tayyaba Naseem Abbasi, Muhammad Saad Khan, Erum Siddiqui, Muhammad Ahmed Zaheer, Areeba Tabassum, Naila Zainab, Aminath Waafira","doi":"10.1177/25151355251387927","DOIUrl":"10.1177/25151355251387927","url":null,"abstract":"<p><strong>Background: </strong>Lyme disease, the most common vector-borne illness in the Northern Hemisphere, is caused by Borrelia burgdorferi and transmitted via tick bites. With rising global incidence and no approved human vaccine, VLA15, a novel recombinant vaccine targeting six OspA serotypes, shows promise as an effective preventive strategy.</p><p><strong>Objective: </strong>This study aims to assess the safety and immunogenicity of the VLA15 vaccine among healthy or high-risk populations.</p><p><strong>Design: </strong>We conducted a systematic review and meta-analysis of three randomized controlled trials.</p><p><strong>Methods: </strong>This systematic review and meta-analysis, registered in PROSPERO (CRD420251058818), was conducted following PRISMA guidelines. A thorough search of PubMed, EMBASE, Cochrane Library, Scopus, ScienceDirect, and ClinicalTrials.gov was performed up to May 2025. Data extraction and quality assessment (using Cochrane ROB 2) were performed independently by reviewers. Risk ratios (RR) with 95% confidence intervals (CI) were calculated using random-effects models.</p><p><strong>Results: </strong>Three RCTs, including 5907 participants (4500 VLA15; 1407 placebo), met inclusion criteria. VLA15 recipients showed a significantly higher risk of adverse events: fever (RR 2.65, 95% CI: 1.77-3.96), headache (RR 1.40, 95% CI: 1.21-1.62), fatigue (RR 1.33, 95% CI: 1.15-1.55), and arthralgia (RR 2.50, 95% CI: 1.67-3.76), all with <i>p</i> < 0.0001. Subgroup analysis revealed a dose-response trend for arthralgia, particularly at 135 μg and 180 μg doses. However, nausea (RR = 1.34, <i>p</i> = 0.10) and severe unsolicited AEs (RR = 1.22, <i>p</i> = 0.42) were not statistically significant, suggesting no meaningful increase in these risks. Immunogenicity outcomes consistently favored VLA15, showing elevated IgG levels, GMTs, and seroconversion rates.</p><p><strong>Conclusion: </strong>VLA15 exhibits strong immunogenicity and acceptable safety, despite an increased risk of mild-to-moderate adverse events. Continued research and monitoring are warranted to support its use in Lyme disease prevention.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251387927"},"PeriodicalIF":0.0,"publicationDate":"2025-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12575933/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145432463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ramona Nasr, Eman Swaidan, Samah Hachem, Noura Yazbek, Mahdi Rizk, Abir Abdel Rahman, Nael H Alami
{"title":"Immunization safety monitoring: addressing vaccine hesitancy and enhancing coverage in crisis-affected regions-insights from Lebanon, Ukraine, and Sudan.","authors":"Ramona Nasr, Eman Swaidan, Samah Hachem, Noura Yazbek, Mahdi Rizk, Abir Abdel Rahman, Nael H Alami","doi":"10.1177/25151355251380220","DOIUrl":"10.1177/25151355251380220","url":null,"abstract":"<p><p>Global vaccine hesitancy, intensified by crises such as the COVID-19 pandemic, represents a significant threat to immunization coverage. This narrative review discusses immunization safety monitoring frameworks and vaccine hesitancy in crisis-affected regions, particularly in Lebanon, Ukraine, and Sudan. By examining and reflecting on these case studies, this review aims to examine challenges, highlight context-specific strategies, and propose solutions for enhancing vaccine uptake and trust in fragile and conflict-affected areas. A structured narrative review was conducted, collecting evidence from global frameworks and region-specific case studies. The review explored factors impacting vaccine hesitancy, the role of adverse events following immunization (AEFI) monitoring systems, and innovative technological interventions. Key sources included peer-reviewed articles, reports from humanitarian organizations, and systematic reviews. The review showed that vaccine hesitancy is affected by interconnected factors, including sociopolitical and cultural conflicts, and misinformation. Lebanon's persistent economic and political instability, Ukraine's disruptions caused by the ongoing war, and Sudan's fragile healthcare infrastructure pose challenges to vaccine coverage. Successful interventions to address hesitancy included transparency in AEFI reporting, integration of real-time monitoring systems, and community-led initiatives. It is critical to mitigate vaccine hesitancy in crisis-affected regions through robust safety monitoring frameworks and tailored communication strategies. Global cooperation and frameworks, technological innovations, and context-specific approaches are imperative for improving the resilience of immunization systems and ensuring health security in fragile settings. Furthermore, these insights are crucial in informing public health communication policies and behavior change interventions to improve public trust and thus reduce vaccine hesitancy.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251380220"},"PeriodicalIF":0.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12464397/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145186961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The urgent need for a licensed dengue vaccine in the Philippines.","authors":"Dalmacito A Cordero","doi":"10.1177/25151355251380216","DOIUrl":"10.1177/25151355251380216","url":null,"abstract":"","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251380216"},"PeriodicalIF":0.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457757/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145151048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Uptake of human papillomavirus vaccination and associated factors among high school female students in Dessie City Administration, North East Ethiopia: a cross-sectional study.","authors":"Abdu Hussen, Nigusie Tadesse, Endalew Minwuye Andargie, Yonas Fissha Adem","doi":"10.1177/25151355251375970","DOIUrl":"10.1177/25151355251375970","url":null,"abstract":"<p><strong>Background: </strong>The vaccination for human papillomavirus (HPV) is a widely acknowledged global measure aimed at preventing cervical cancer. However, the rate of vaccine adoption differs across various regions and countries due to a number of discouraging factors. Therefore, this study aimed to assess the uptake of HPV vaccination and associated factors among high school female students in Dessie City Administration, Northeast Ethiopia, 2023.</p><p><strong>Methods: </strong>School-based cross-sectional study was conducted among 410 high school female students in Dessie City Administration from April 1, 2023, to May 1, 2023. Participants were selected using a simple random sampling technique. The data were collected using self-administered questionnaires. Data were entered using EPI data version 4.6 and exported to SPSS version 26 for analysis. Data were presented with frequency tables, graphs, and pie charts. To determine the factors associated with the outcome, a two-step logistic regression approach was employed. Initially, a bivariable analysis identified potential predictor variables with a <i>p</i>-value of less than 0.25, which were then included in a multivariable model. A <i>p</i>-value of less than 0.05 and an adjusted odds ratio at a 95% confidence level were used to confirm associations. In addition, the Hosmer-Lemeshow test was used to assess the model's goodness of fit.</p><p><strong>Results: </strong>The overall uptake of the HPV vaccine among female high school students in Dessie City was 54.9% with 95% CI (50.2, 59.8). In this study finding, fathers' educational level (AOR = 5.00, 95% CI: (1.59, 15.73)), source of information (AOR = 2.08, 95% CI: (1.13, 3.83)), and having positive attitude toward HPV vaccination (AOR = 1.88, 95% CI: 1.23, 2.87) were variables that showed a significant association with uptake of HPV vaccine.</p><p><strong>Conclusion: </strong>In this study, nearly half a percent of female high school students did not uptake the HPV vaccine. Fathers' education level, source of information, and positive attitude were positively associated with the uptake of the HPV vaccine among female high school students. Therefore, schools should provide continuous school-based training about the HPV vaccine to foster attitudinal change among female high school students.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251375970"},"PeriodicalIF":0.0,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12446816/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145114237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bridging the gaps in Mpox vaccine equity: insights and imperatives from the Philippine public health landscape.","authors":"Danilo V Rogayan","doi":"10.1177/25151355251369156","DOIUrl":"10.1177/25151355251369156","url":null,"abstract":"","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251369156"},"PeriodicalIF":0.0,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12358699/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144883901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Khaled Iqbal Hamid, Subeh Hasneen, Aklima Khan Lima, Shandipon Roy Shawon, Mohammad Shahriar, Ramisa Anjum
{"title":"Cervical cancer trends, HPV vaccine utilization, and screening in low- and lower-middle-income countries: an updated review.","authors":"Mohammad Khaled Iqbal Hamid, Subeh Hasneen, Aklima Khan Lima, Shandipon Roy Shawon, Mohammad Shahriar, Ramisa Anjum","doi":"10.1177/25151355251356646","DOIUrl":"10.1177/25151355251356646","url":null,"abstract":"<p><p>Cervical cancer is the fourth most common cancer among women worldwide, with 660,000 new cases and 350,000 deaths reported in 2022. This disease mainly affects women in low- and lower-middle-income countries (LMICs), where 90% of cases occur. This study explored how LMICs are responding to the World Health Organization's (WHO) call to eliminate cervical cancer. It looked at cervical cancer rates, the use of human papillomavirus (HPV) vaccines, and suggested strategies to fight the disease. The study analyzed the rates of cervical cancer and deaths in LMICs, the effectiveness of HPV vaccination programs, and how well screening efforts are working. To compare data across countries, it used age-standardized incidence rates (ASIRs) and age-standardized mortality rates (ASMRs) per 100,000 women per year. In 2022, the ASIR was 25.4% in lower income countries and 16.9% in lower-middle-income countries. The ASMR was also higher in lower income countries (18.5%) compared to lower-middle-income countries (10.3%). HPV vaccine coverage remains low in many LMICs, with significant differences between the rates of first and final doses completed. By 2050, the number of new cervical cancer cases is expected to rise. Although the WHO aims to eliminate cervical cancer by achieving 90% HPV vaccination by age 15, 70% screening coverage, and 90% access to treatment, many challenges remain in LMICs. These include weak healthcare systems, poor infrastructure, and a lack of health education. Overcoming these challenges through better vaccine distribution, improved screening programs, and stronger healthcare systems is essential to eliminate cervical cancer.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251356646"},"PeriodicalIF":0.0,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12290362/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144733559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mpox vaccine in the Philippines: the waiting continues, but until when?","authors":"Dalmacito A Cordero","doi":"10.1177/25151355251356647","DOIUrl":"10.1177/25151355251356647","url":null,"abstract":"","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251356647"},"PeriodicalIF":0.0,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12230275/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144584990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trends in uptake and impact of thermostable vaccines in Africa.","authors":"Sophia Khalayi Kitui, Evans Juma, Maureen Tayamika Ndalama, Dagmawi Chilot, Dejene Tolossa, Betelhiem Woldemedhin, Seke G Y Muzazu, Kidist Digamo, Job Mungania, Tsegahun Manyazewal","doi":"10.1177/25151355251341662","DOIUrl":"10.1177/25151355251341662","url":null,"abstract":"<p><p>Vaccination in Africa faces significant challenges due to inadequate cold chain infrastructure, particularly in regions lacking reliable electricity. Approximately 80% of prequalified vaccines require cold chain systems to maintain their potency, which is often unfeasible in remote areas. Exposure to extreme temperatures can lead to a loss of vaccine potency, making it crucial to explore alternatives. Thermostable vaccines represent a technological advancement that addresses these challenges by eliminating the need for cold chain mechanisms during transport and storage. This narrative review analyzes trends in the uptake of thermostable vaccines and their impact across Africa. A total of 10 studies were reviewed, encompassing 14 African countries, revealing critical insights into the potential of thermostable vaccines to enhance immunization coverage in settings with limited access to traditional cold chain facilities. These vaccines, which maintain their efficacy even when exposed to higher temperatures for short periods, offer a promising solution to the logistical and economic hurdles of vaccine delivery in resource-limited settings.</p>","PeriodicalId":33285,"journal":{"name":"Therapeutic Advances in Vaccines and Immunotherapy","volume":"13 ","pages":"25151355251341662"},"PeriodicalIF":0.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12177255/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}