Hrev_master Healthcare in Low-resource Settings 2024; volume 12:11355 Marburg virus in Tanzania: examining emergence, consequences, and mitigation approaches Bashar Haruna Gulumbe,1 Innocent H. P. Uggh,2 Aminu Shehu,3 Ernest Winchislaus4 1Department of Microbiology, Federal University Birnin Kebbi, Nigeria; 2Tanzania Better Health, Tanzania; 3Department of Microbiology, Bayero University Kano, Nigeria; 4Bugando Medical Centre, Mwanza, Tanzania Abstract The first-ever Marburg virus disease (MVD) outbreak in Tanzania serves as a stark warning of the vulnerability of the entire world to newly emerging infectious diseases. This article looks at the causes of Tanzania’s susceptibility to MVD, contain- ment efforts, and strategies to stop further outbreaks. The analysis emphasizes the significance of addressing socio-economic vari- ables, environmental issues, and community participation in addi- tion to healthcare infrastructure and surveillance systems for long- term health security. It highlights the requirement for a concerted effort on the part of governments, international organizations, and local communities, as well as ongoing financial support for public health infrastructure. The analysis also urges regional collabora- tion and coordination, as well as the adoption of a learning attitude to incorporate lessons from this and other outbreaks for enhancing and perfecting public health policies. We can contribute to global efforts to prevent and limit future infectious disease outbreaks and protect the health of communities around the world by adopting a thorough, proactive, and evidence-based strategy. Introduction Marburg virus disease (MVD) is a highly virulent and often fatal infectious disease caused by the Marburg virus, a member of the Filoviridae family that also includes the Ebola virus.1 In March 2023, the United Republic of Tanzania reported its first- ever MVD outbreak, with eight cases and five deaths (case fatal- ity ratio [CFR]: 62.5%) in two villages in the Bukoba district, Kagera region.2,3 The outbreak has since been officially declared over On June 2, 2023. Tanzania’s vulnerability to Marburg virus outbreaks is multi- faceted. Ecological factors, including zoonotic transmission from reservoir hosts such as Rousettus bats, contribute to this vulnerability. Additionally, challenges within the healthcare sys- tem, such as delays in case identification and nosocomial trans- mission, exacerbated the risk.2 The need to understand and address these vulnerability factors and implement effective response measures is of paramount importance in managing future outbreaks. The Kagera region, where the outbreak origi- nated, is characterized by porous borders, increased cross-border movement, regional trade, and economic activities around Lake Victoria. These factors, coupled with limited healthcare infra- structure, population density, urbanization, and socioeconomic challenges, contribute to the potential spread of the disease and other infectious diseases.2 The emergence of the Marburg virus in Tanzania underscores the need for a proactive and comprehen- sive approach to outbreak prevention and containment. In response to the outbreak, the Tanzanian government has deployed Rapid Response Teams to investigate and implement interventions in the affected areas, including contact tracing and risk communication activities.4 Collaboration with international organizations, such as the World Health Organization (WHO), Africa Centre for Disease Control (Africa CDC), and other glob- al partners, is essential for sharing information, and best prac- tices, and providing support during this critical time.2 As the country grappled with its first MVD outbreak, the successes and challenges of containment efforts offer valuable insights and les- sons for future preparedness and response measures. This commentary aims to provide a comprehensive analysis of the 2023 Marburg virus outbreak in Tanzania, discussing the factors that rendered the country vulnerable to such outbreaks and the measures deployed in place to contain the virus. Additionally, the commentary will explore strategies for prevent- ing future outbreaks, emphasizing the importance of strengthen- ing healthcare infrastructure, enhancing surveillance and early warning systems, fostering community engagement and resilience, and addressing broader socioeconomic and environ- mental factors. As researchers not directly involved in managing the outbreak but with a keen interest in global public health and disease outbreaks, our ultimate goal is to highlight the signifi- Correspondence: Bashar Haruna Gulumbe, Department of Microbiology, Federal University Birnin Kebbi, Nigeria. E-mail: bashar.haruna@fubk.edu.ng Key words: Marburg, Tanzania, outbreaks, pandemics, epidemics, public health infrastructure. Contributions: all authors contributed equally to conception, writing, and revision. All authors approved the final copy of the manuscript. Conflict of interest: the authors have no competing interests to declare Funding: not applicable. Ethics approval: not applicable. Availability of data and material: not applicable. Received: 4 April 2023. Accepted: 14 February 2024. Early access: 23 February 2024. This work is licensed under a Creative Commons Attribution 4.0 License (by-nc 4.0). ©Copyright: the Author(s), 2024 Licensee PAGEPress, Italy Healthcare in Low-resource Settings 2024; 12:11355 doi:10.4081/hls.2024.11355 Publisher's note: all claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organi- zations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher. [page 284] [Healthcare in Low-resource Settings 2024;12:11355] Non -co mmerc ial us e o nly cance of a proactive and comprehensive approach to outbreak prevention and containment and to call for collective action and continued investment in Tanzania’s public health infrastructure. Why is Tanzania more vulnerable? Tanzania’s susceptibility to Marburg virus outbreaks stemmed from a complex interplay of ecological, healthcare, and population factors. The recent outbreak highlighted the signifi- cance of zoonotic transmission, particularly from the widespread Rousettus bats, which served as carriers of the virus.5 This direct or indirect transmission highlighted the pivotal role of ecological factors in disease emergence, exacerbated by human activities that increased contact with these reservoir hosts. Following the initial human infection, the transmission of the virus escalated through human-to-human contact, necessitating robust public health measures to prevent and contain outbreaks.6 However, the emphasis on ecological and environmental factors provided a more accurate framework for understanding the risk factors asso- ciated with Marburg virus outbreaks in Tanzania. As such, focus- ing on human-wildlife interactions and reservoir species, public health strategies could be tailored to address the root causes of zoonotic disease emergence and spread. Yet, the presence of a low-resource healthcare setting significantly impacted the epi- demiological landscape of Marburg virus outbreaks.7 Challenges such as low clinical suspicion and limited infection control meas- ures contributed to delays in case identification and nosocomial transmission, amplifying outbreak dynamics. Despite these challenges, it was essential to recognize that the inherent limitations of low-resource healthcare systems did not directly initiate outbreaks. Rather, they rendered countries more vulnerable to experiencing larger outbreaks once the virus gained a foothold. Therefore, strengthening healthcare infrastructure and investing in research were crucial components of a comprehen- sive approach to disease prevention and control.8 Tanzania’s experience with the Marburg virus outbreak highlighted the criti- cal need for a multifaceted public health strategy that not only addresses immediate healthcare challenges but also takes into account the broader ecological and environmental determinants of disease. The outbreak has served as a poignant reminder of the interconnectedness of human, animal, and environmental health, reinforcing the importance of the One Health approach. Public health interventions In response to the Marburg virus outbreak in Tanzania, the government has launched a series of coordinated initiatives aimed at containing the spread of the disease while minimizing its impact on affected communities.1,9 To promptly identify and manage potential cases of Marburg virus disease (MVD), the Tanzanian government has bolstered its surveillance and early detection capa- bilities. Rapid Response Teams have been dispatched to affected areas to investigate and implement targeted interventions. These teams work closely with local health officials to enhance contact tracing efforts, monitor individuals exhibiting symptoms, and actively seek out new cases in both community settings and health- care facilities.2 Similarly, to curb the spread of MVD, the govern- ment has implemented quarantine measures for individuals who have been in close contact with confirmed cases. These measures involved isolating and monitoring contacts for 21 days, allowing for early detection and treatment of potential cases.2 Additionally, travel restrictions have been imposed in affected areas to minimize the risk of MVD transmission to other regions of Tanzania or neighboring countries. The Tanzanian government has initiated risk communication activities to raise public awareness about MVD, its transmission pathways, and the protective measures individuals can adopt to reduce exposure to the virus.2 These campaigns emphasize the importance of personal hygiene, safe burial practices, and prompt reporting of suspected cases to healthcare facilities. By empow- ering communities with accurate information and practical guid- ance, the government aims to foster a proactive and collaborative approach to outbreak containment. Recognizing the value of global partnerships in addressing public health crises, Tanzania has sought the assistance and expertise of international organizations to strengthen its response to the MVD outbreak.2 The World Health Organization (WHO) is working closely with the Tanzanian Ministry of Health to provide technical assistance, resources, and expertise in managing the MVD outbreak. This support includes guidance on surveillance, case management, infection prevention and control, laboratory testing, and risk communication. Other global partners, such as non-governmental organizations and donor agencies, have also contributed to the response efforts by providing financial and logistical support. In the spirit of international cooperation, Tanzania has engaged in the exchange of information and best practices with other countries that have experienced MVD outbreaks.2 This col- laboration fosters a collective learning process, enabling Tanzania to build on the successes and lessons learned from pre- vious MVD response efforts and adapt its strategies accordingly. Successes and challenges in containing the outbreak The successful containment of the MVD outbreak in Tanzania’s Kagera region declared on March 16, 2023, and offi- cially ended by June 2, 2023,4 stands as a testament to effective public health response. Under the leadership of President Dr. Samia Suluhu Hassan, Prime Minister Kassim Majaliwa, and Health Minister Ummy Mwalimu, Tanzania, in collaboration with the Africa CDC and partners like WHO, MSF, US CDC, and others, rapidly mobilized to address the outbreak.4 This swift action resulted in the containment of the virus within 78 days, limiting it to nine confirmed cases and six deaths. Key to this suc- cess was the integration of existing health programs, robust multi-sectoral partnerships, regular strategic coordination, and a motivated health workforce.4 The approach emphasized trans- parency, accountability, and international cooperation, demon- strating the efficacy of a coordinated, multi-faceted response strategy in managing and overcoming public health emergencies, providing valuable insights for future outbreak management. However, challenges such as low-resource healthcare infrastruc- ture, cross-border movements, and public awareness gaps high- light the need for continued investment in public health prepared- ness and resilience. These challenges further illuminate the necessity for enhanced transparency in public health efforts—a measure that cannot be overstated. Additionally, they emphasize the critical reliance on partnerships, showcasing the indispensa- ble role of collaborative efforts in bolstering health systems and ensuring effective response mechanisms are in place. Debate Article [Healthcare in Low-resource Settings 2024;12:11355] [page 285] Non -co mmerc ial us e o nly Preventing future outbreaks A robust and well-funded healthcare infrastructure is crucial to prevent future Marburg virus outbreaks.7 This requires signifi- cant investment in building and maintaining hospitals, clinics, and laboratories, ensuring that they are equipped with the neces- sary resources and technology to effectively diagnose, treat, and contain infectious diseases. In addition to investing in healthcare facilities, it is essential to prioritize the training and retention of healthcare professionals and those who are in pre-service training. By providing education, training, and ongoing support, the healthcare workforce can be better prepared to identify and man- age cases of the Marburg virus disease and other infectious dis- eases, thereby preventing the escalation of future outbreaks. Utilizing technology and data-driven approaches can signifi- cantly improve the effectiveness of surveillance and early warn- ing systems. Integrating real-time data collection and analysis, advanced diagnostics, and predictive modeling can help identify potential outbreaks early, allowing for rapid response and con- tainment efforts.10 Enhanced regional cooperation and coordina- tion among neighboring countries are essential for the timely sharing of information and resources in the event of an out- break.11 By establishing strong networks and communication channels, countries can work together to monitor and respond to potential outbreaks, thus preventing their spread across borders.11 Empowering communities through education and awareness campaigns is critical to preventing future Marburg virus out- breaks. By providing accurate and accessible information on the virus, its transmission, and the necessary precautions, individuals can be better equipped to protect themselves and their communi- ties. Implementing community-based interventions and establish- ing support networks can help build resilience and encourage local ownership of disease prevention and control measures. These initiatives may include targeted programs for at-risk popu- lations, engagement with local leaders and the private sector, and the establishment of community health worker networks to dispel misinformation and promote disease awareness and prevention strategies. Addressing the root causes of vulnerability to infec- tious diseases requires tackling broader socioeconomic chal- lenges, such as poverty and limited access to essential services. Implementing poverty reduction and social welfare programs can help improve living conditions and promote overall health and well-being, thereby reducing the risk of disease transmission. Climate change and environmental factors can contribute to the emergence and spread of infectious diseases like the Marburg virus disease. By adopting and implementing climate change adap- tation and mitigation strategies, countries can reduce the impact of environmental factors on disease dynamics and improve overall public health outcomes.12,13 These strategies may include promot- ing sustainable land use, preserving ecosystems, and investing in early warning systems for climate-sensitive diseases. Conclusions The Marburg virus disease outbreak in Tanzania highlights the critical importance of proactively addressing public health threats and the interconnected nature of various factors that contribute to vulnerability. The outbreak serves as a stark reminder that emerg- ing infectious diseases are an ongoing challenge, requiring con- stant vigilance, adaptability, and collaboration across multiple sec- tors and disciplines. The key takeaways from the analysis of the outbreak and response measures emphasize the need to enhance Tanzania’s public health infrastructure and regional cooperation to prevent future outbreaks. Furthermore, addressing the root causes of vulnerability, including poverty, climate change, and disparities in access to healthcare, is vital for fostering long-term resilience and equity. As we move forward, stakeholders must adopt a learn- ing mindset, integrating the lessons from this outbreak and others to continuously refine and optimize public health strategies. By embracing a comprehensive, proactive, and evidence-based approach, we can contribute to global efforts to prevent and con- tain future infectious disease outbreaks and safeguard the well- being of populations worldwide. References 1. Manno D. Developing a vaccine against Marburg virus disease. The Lancet 2023;401:251–3. 2. WHO. Marburg virus disease – United Republic of Tanzania [Internet]. 2023 [cited 2023 Mar 31]. Available from: https:/ /www.who.int/emergencies/disease-outbreak- news/item/2023-DON451 3. WHO. WHO | Regional Office for Africa. 2023 [cited 2023 Mar 31]. Tanzania confirms first-ever outbreak of Marburg Virus Disease. Available from: https://www.afro.who.int/countries/unit- ed-republic-of-tanzania/news/tanzania-confirms-first-ever-out- break-marburg-virus-disease 4. Africa CDC. Lessons Learnt from the Marburg Virus Disease (MVD) Outbreak in Tanzania [Internet]. Africa CDC. 2023 [cited 2024 Feb 9]. 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