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BACKGROUND: The COVID-19 pandemic and response severely impacted people living with non-communicable diseases (PLWNCDs) globally. It exacerbated pre-existing health inequalities, severely disrupted access to care, and worsened clinical outcomes for PLWNCDs, who were at higher risk of morbidity and mortality from the virus. The pandemic's effects were likely magnified in humanitarian settings, where there were pre-existing gaps in continuity of care for non-communicable diseases (NCDs). We sought to explore factors affecting implementation of NCD care in crisis settings during the COVID-19 pandemic and the adaptations made to support implementation. METHODS: Guided by the Consolidated Framework for Implementation Research, we undertook an online survey of 98 humanitarian actors from multiple regions and organization types (March-July 2021), followed by in-depth interviews with 13 purposively selected survey respondents (October-December 2021). Survey data were analysed using descriptive statistics, while interview data were analysed thematically, using both deductive and inductive approaches. RESULTS: Initially, humanitarian actors faced challenges influenced by external actors' priorities, such as de-prioritisation of NCD care by governments, travel restrictions and supply chain interruptions. With each infection wave and lockdown, humanitarian actors were better able to adapt and maintain NCD services. The availability of COVID-19 vaccines was a positive turning point, especially for the risk management of people with NCDs and protection of health workers. Key findings include that, despite pre-existing challenges, humanitarian actors largely continued NCD services during the crisis. Enabling factors that supported continuity of NCD services included the ability to quickly pivot to remote means of communication with PLWNCDs, flexibility in medicine dispensing, and successful advocacy to prioritize NCD management within health systems. Key lessons learned included the importance of partnerships and cooperation with other health actors, and the mobilisation or repurposing of community health workers/volunteer networks. CONCLUSIONS: The COVID-19 experience should prompt national and global health stakeholders to strengthen inclusion of NCDs in emergency preparedness, response, and resilience planning. Key lessons were learned around remote care provision, including adapting to NCD severity, integrating community health workers, providing context-adapted patient information, combating misinformation, and strengthening cross-sectoral partnerships.

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An efficient M&E system in public healthcare is crucial for achieving universal health coverage in low- and middle-income countries, especially when the need for service remains unmet due to the exposure of the population to disaster risks and uncertainties. Current research has conducted exploratory and predictive analyses to estimate the determinants of sustainable M&E solutions for ensuring uninterrupted access during and after disasters. The aim was to estimate the efficiency of reaching a higher M&E production frontier via the Cobb‒Douglas model and stochastic frontier model as the basic theoretical and empirical frameworks. The research followed a deductive approach and used a stratified purposive sampling method to collect data from different layers of health and disaster governance in a flood-prone rural setting in the Malda, South 24 Parganas and Purulia districts in West Bengal, India. The present mixed-method study revealed multiple challenges in healthcare seeking during disasters and how a well-structured M&E system can increase system readiness to combat these challenges. The stochastic frontier model estimated the highest M&E frontier producing the most attainable M&E effectiveness through horizontal convergence between departments, enhanced coordination, the availability of frontline health workers at health centers, the adoption of learned innovation and the outsourcing of the evaluation component to external evaluators to improve M&E process quality. Although the study has several limitations, it shows the potential to increase technical and allocative efficiency through building skills in innovative techniques and applying them in process implementation. In the future, research on strategy improvement followed by real-world evidence-based policy advocacy is needed to increase the impact of M&E on access to healthcare services.

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Disaster scholarship purportedly promotes disaster risk reduction and resists disaster risk creation, thereby deeply engaging with transboundary existential risks, justice, and political power. It is thus a commitment to humanity, and for it to become truly equitable and just, solidarity must lie at its heart. In this paper we connect solidarity with knowledge production and assess the implications of disaster scholarship and the relationships on which it is built. We offer a critique of the kind of research produced by neoliberal academic institutions and provocations for resistance through solidarity. We call on disaster scholars to use these prompts to reflect on their practice, research ethics, and their commitment to other human beings, inside and outside of the academy. Solidarity can help scholars to avoid the saviourism, self-congratulation, and paternalism that are common in academia. Solidarity in disaster scholarship is a worthy endeavour precisely because it yields a concrete alternative vision of resisting disaster risk creation through knowledge production.

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The prevalence of mental health problems constitutes an open challenge for modern societies, particularly for low and middle-income countries with wide gaps in mental health support. With this in mind, five datasets were analyzed to track mental health trends in Mexico City during the pandemic's first year. This included 33,234 responses to an online mental health risk questionnaire, 349,202 emergency calls, and city epidemiological, mobility, and online trend data. The COVID-19 mental health risk questionnaire collects information on socioeconomic status, health conditions, bereavement, lockdown status, and symptoms of acute stress, sadness, avoidance, distancing, anger, and anxiety, along with binge drinking and abuse experiences. The lifeline service dataset includes daily call statistics, such as total, connected, and abandoned calls, average quit time, wait time, and call duration. Epidemiological, mobility, and trend data provide a daily overview of the city's situation. The integration of the datasets, as well as the preprocessing, optimization, and machine learning algorithms applied to them, evidence the usefulness of a combined analytic approach and the high reuse potential of the data set, particularly as a machine learning training set for evaluating and predicting anxiety, depression, and post-traumatic stress disorder, as well as general psychological support needs and possible system loads.

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Background: To minimize loss of life, modern mass casualty response requires swift identification, efficient triage categorization, and rapid hemorrhage control. Current training methods remain suboptimal. Our objective was to train first responders to triage a mass casualty incident using Virtual Reality (VR) simulation and obtain their impressions of the training's quality and effectiveness.We trained subjects in a triage protocol called Sort, Assess, Lifesaving interventions, and Treatment and/or Transport (SALT) Triage then had them respond to a terrorist bombing of a subway station using a fully immersive virtual reality simulation. We gathered learner reactions to their virtual reality experience and post-encounter debriefing with a custom electronic survey. The survey was designed to gather information about participants' demographics and prior experience, including roles, triage training, and virtual reality experience. We then asked them to evaluate the training and encounter and the system's potential for training others. Results: We received 375 completed evaluation surveys from subjects who experienced the virtual reality encounter. Subjects were primarily paramedics, but also included medical learners as well as other emergency medical service (EMS) professionals. Most participants (95%) recommended the experience for other first responders and rated the simulation (95%) and virtual patients (91%) as realistic. Ninety-four percent (94%) of participants rated the virtual reality simulator as "excellent" or "good." We observed some differences between emergency medical service and medical professionals regarding their prior experience with disaster response training and their opinions on how much the experience contributed to their learning. We observed no differences between subjects with extensive virtual reality experience and those without. Conclusions: Our virtual reality simulator is an automated, customizable, fully immersive virtual reality system for training and assessing personnel in the proper response to a mass casualty incident. Participants perceived the simulator as an adequate alternative to traditional triage and treatment training and believed that the simulator was realistic and effective for training. Prior experience with virtual reality was not a prerequisite for the use of this system. Supplementary Information: The online version contains supplementary material available at 10.1186/s44247-024-00117-5.

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OBJECTIVE: Chemical, biological, radiological, and nuclear (CBRN) events with multiple casualties are rare events, but preparedness is crucial for hospitals to respond properly. This study evaluated the preparedness and disaster planning of German hospitals for CBRN incidents. METHODS: In a cross-sectional study, German hospitals with level III (highest level) emergency departments were surveyed using an online questionnaire focusing on risk assessment, infrastructure, hospital disaster planning, and preparedness for CBRN events. RESULTS: Between June and July 2023, 50 hospitals were surveyed. 62.5% of the hospitals had a section on chemical incidents in their disaster plan. A decontamination facility was available in 29.8% of the hospitals and chemical protective suits in 46.8%. The minority of the hospitals trained the correct handling of personal protective equipment (PPE) (39.1%) regularly or had frequent CBRN drills (21.3%). Most hospitals had the infrastructure for medical isolation (93.6%). CONCLUSIONS: The level of CBRN preparedness is heterogeneous for German hospitals. Most were well prepared for infectious patients, but only half of all hospitals had sufficient PPE for chemical incidents and only 30% had a decontamination facility available. Overall, the level of CBRN preparedness is still insufficient and needs further improvement.

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OBJECTIVE: To achieve resilience in the response of a major incident, it is essential to coordinate major processes and resources with the aim to manage expected and unexpected changes. The coordination is partly done through timely, adequate, and resilience-oriented decisions. Accordingly, the aim of the present paper is to describe factors that affected decision-making in a medical command and control team during the early COVID-19 pandemic. METHODS: This study used a qualitative method in which 13 individuals from a regional public healthcare system involved in COVID-19 related command and control were interviewed. Data was collected through semi-structured interviews and analyzed using qualitative content analysis. RESULTS: The factors affecting decision-making in medical command and control during early COVID-19 pandemic were grouped into 5 themes: organization, adaptation, making decisions, and analysis, as well as common operational picture. CONCLUSIONS: The present study indicated that decision-making in medical command and control faces many challenges in the response to pandemics. The results may provide knowledge about disaster resilience and can be utilized in educational and training settings for medical command and control.

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OBJECTIVE: Mass Casualty Incidents (MCIs) involving high-speed passenger ferries (HSPFs) may result in the dual-wave phenomenon, in which the emergency department (ED) is overwhelmed by an initial wave of minor injuries, followed by a second wave of more seriously injured victims. This study aimed to characterize the time pattern of ED presentation of victims in such accidents in Hong Kong. METHODS: All HSPF MCIs from 2005 to 2015 were reviewed retrospectively, with the time interval from accident to ED registration determined for each victim. Multivariable linear regression was used to identify independent factors associated with the time of ED presentation after the accidents. RESULTS: Eight MCIs involving 492 victims were identified. Victims with an Injury Severity Score (ISS) ≥ 9 had a significantly shorter median time interval compared to those with minor injuries. An ISS ≥ 9 and evacuation by emergency service vessels were associated with a shorter delay in ED arrival, whereas ship sinking, accident at nighttime, and a longer linear distance between the accident and receiving ED were associated with a longer delay. CONCLUSION: The dual-wave phenomenon was not present in HSPF MCIs. Early communication is the key to ensure early resource mobilisation and a well-timed response.

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OBJECTIVE: With the increase in natural disasters and the expected role of public health nurses (PHNs) in responding, it is crucial to develop evidence-based disaster preparedness and management training programs tailored to the needs of PHNs. This study evaluates the effectiveness of a flipped classroom approach in disaster training for PHNs. METHODS: A total of 42 PHNs completed a 5-hour online training program and an in-person 8-hour training session at a local nursing school. Surveys measuring self-reported confidence and knowledge were completed at the beginning and end of the online and in-person training. RESULTS: The average years of experience as an RN and PHN were 12.3 years and 6.7 years, respectively. Approximately 64% of participants had never deployed during a disaster. The pre- and posttest demonstrated a large effect size, indicating the effectiveness of both online and in-person training. The online training resulted in significant changes in knowledge. The in-person training showed a statistically significant increase in confidence across all measures. CONCLUSIONS: Online and in-person disaster preparedness training programs can effectively enhance the knowledge, skills, and attitudes of PHNs. The majority of participants expressed that the training better prepared them to work in disaster shelters.

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Amputation as a life-saving measure for earthquake-trapped patients is supported by WHO and INSARAG guidelines. However, implementing these guidelines in highly stressful contexts can complicate decision-making. This report presents a case of life-saving amputation during the 2023 Turkey earthquake, adhering to recommended guidelines. The 16-year-old patient was trapped for 55 hours in a narrow corridor. Extensive interdisciplinary discussions led to the decision for a field amputation after alternative rescue attempts failed. Consent was obtained from the family, given the patient's delirium. Meticulous planning and anesthesia using midazolam and ketamine ensured successful amputation with minimal blood loss. Challenges encountered during the disaster response were discussed. Delays in administering antibiotics, a lack of cervical protection, ethical dilemmas, psychological concerns, and legal implications were highlighted. Continued improvement and addressing ethical, legal, and psychological aspects are essential for optimal disaster response outcomes.

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OBJECTIVE: The aim of this review is to identify, evaluate, and graphically display gaps in the literature related to scarce health resource allocation in humanitarian aid settings. METHODS: A systematic search strategy was utilized in MEDLINE (via Ovid), Scopus, EMBASE, CINAHL Complete, and ProQuest Central. Articles were reviewed by 2 reviewers with a third reviewer remedying any screening conflicts. Articles meeting inclusion criteria underwent data extraction to facilitate evaluation of the scope, nature, and quality of experience-based evidence for health resource allocation in humanitarian settings. Finally, articles were mapped on a matrix to display evidence graphically. RESULTS: The search strategy identified 6093 individual sources, leaving 4000 for screening after removal of duplicates. Following full-text screening, 12 sources were included. Mapping extracted data according to surge capacity domains demonstrated that all 4 domains were reflected most of all the staff domain. Much of the identified data was presented without adhering to a clear structure or nomenclature. Finally, the mapping suggested potential incompleteness of surge capacity constructs in humanitarian response settings. CONCLUSIONS: Through this review, we identified a gap in evidence available to address challenges associated with scarce resource allocation in humanitarian settings. In addition to presenting the distribution of existing literature, the review demonstrated the relevance of surge capacity and resource allocation principles underpinning the developed framework.

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BACKGROUND: The appropriate response to mass causality biological events requires well-established preparedness and providing a surge capacity. In such a situation, a practical solution is to convert large public venues into shelter hospitals. Due to the lack of a guideline for the transformation of a large public center into a hospital, the present study collected the design criteria for the transformation of public buildings into shelter hospitals in response to biological events such as epidemics or mass causality biological accidents. METHODS: The keywords were searched in Scopus, Web of Science, and PubMed databases until November 2021. This systematic review was conducted using terms related to mass causality biological accidents, shelter hospitals, and design criteria. RESULTS: Of 1802 extracted articles, duplicates (n = 280) and unrelated publications (n = 1342) were left out in the initial evaluation. Among 180 remained papers, 29 records satisfied our criteria after reviewing abstracts and full texts. Most of the included studies were related to the transformation of public venues into hospitals in response to the coronavirus disease 2019 (COVID-19) pandemic. The investigated themes included site selection, layout and structure, waste and wastewater management, ventilation, communication, food and medicine delivery, humanitarians and social supports, post-treatment care, and Management measures. CONCLUSIONS: In summary, large public venues are highly recommended alternatives for surge capacity in response to mass causality biological accidents. However, the main challenges for using these centers are the provision of basic requirements such as water and electricity, ventilation, and available space.

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BACKGROUND: Research connects health outcomes to hazard exposures but often neglects the nature of the exposure or repeated events. METHODS: We undertook a cross-sectional study (N = 1,094) from a representative sample in the Houston Metropolitan Statistical Area (HMSA). Respondents were recruited using Qualtrics panels, targeting individuals reflecting the population of the HMSA. Physical composite scores (PCS) were calculated using the SF-12v2. RESULTS: Among the hazards (hurricanes, flooding, tornadoes, chemical spills, industrial fires), only chemical spills showed a dose-response: physical health scores declined significantly with repeated exposures. This decline persisted after multiple linear regression. Covariates including sex, race, age, education, and chemical exposure affected PCS, but chemical spill exposure remained the most significant, negatively affecting PCS even after adjusting for other factors (coef =-2.24, 95% CI, -3.33 to -1.15). CONCLUSION: Grasping the effects of hazards, especially repeated ones, can guide emergency management in mitigation, recovery, and preparedness efforts.

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OBJECTIVE: This cross-sectional study investigates the immediate psychological effects of disaster relief operations on team members following 2 consecutive major earthquakes in Turkey. METHODS: A total of 170 participants, including professional firefighters, search and rescue (SAR) workers, and volunteers, were surveyed approximately 1 month after the conclusion of active SAR operations. The study utilizes the DSM-V criteria and the Posttraumatic Stress Disorder Checklist (PCL-5) to assess symptoms of post-traumatic stress disorder (PTSD) among participants. RESULTS: The findings reveal a point prevalence of 35.3% for probable PTSD, highlighting the substantial psychological impact on disaster relief teams. Factors such as age, residency in affected areas, and active SAR involvement significantly influenced probable PTSD rates. Interestingly, actively engaged SAR members had lower probable PTSD rates, possibly due to their training. Those who directly witnessed the earthquakes had higher scores, highlighting the impact of firsthand exposure. Additionally, individuals aged 50 and above displayed a higher mean total severity score compared to younger participants. CONCLUSIONS: This research contributes to understanding the mental well-being of disaster relief professionals. The study's findings underscore the importance of timely mental health support and training for these responders, emphasizing the need for preparedness in disaster relief teams.

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Background: Sudden volcanic eruptions can lead to volcanic ash entering the eyes, causing severe discomfort and complicating evacuation efforts. The specific effects of volcanic ash on ocular tissues, especially when wearing soft contact lenses (SCLs), are not well documented, prompting this experimental investigation. Methods: White rabbits with normal eyes were randomly divided into three groups: (1) a bare eye group: bare eye + volcanic ash exposure + eye washing, (2) an SCL group: SCL-wearing eye + volcanic ash exposure + eye washing, and (3) a control group: eye washing only. In groups 1 and 2, volcanic ash was applied to one eye under topical anesthesia, followed by immediate saline rinsing. Slit-lamp microscopy and histopathological analysis were conducted after euthanasia. Results: Slit-lamp and histopathological examinations revealed more significant corneal and conjunctival erosion in the bare eye group compared to the SCL group, which showed limited damage. The control group displayed no ocular damage. Conclusions: Guidelines from the "Volcanic Ash Health Effects: A Guide for the Public" by the National Research Institute for Earth Science and Disaster Resilience recommend removing SCLs during ashfall. Our findings suggest that the damage to the corneal and conjunctival epithelium is less severe in SCL-wearing eyes than in bare eyes, recommending that SCL wearers prioritize evacuation over lens removal during sudden ashfall.

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The increasing number of closed/abandoned mines being reused has become a concern for people. However, a large number of coal pillars were left behind in the closed/abandoned mines. Before effectively utilizing the underground space of mines (CO2 goaf storage, etc.), it is necessary to study the stability of the residual pillars and rock strata. However, limited laboratory experiments and numerical simulation tests have been carried out to understand the relationship between residual pillars and strata in the context of their failure process and mechanism. In this study, the progressive failure and movement of the pillars and strata during the multi-seam mining is simulated using a physical model and numerical simulation. In addition, the failure mechanism was analyzed. The results suggest that the failure process of the pillar is strongly related to the rock strata. The mining of the below seam will bring about not only the collapse of the above strata, but also penetrate the gob of the overlying seam, and then cause the roof of the overlying seam to further collapse. The damage zone acting on the pillar increases accordingly, and the pillars are also gradually damaged. When the pillar is completely destroyed, it will further cause the stable strata to fracture, collapse and become unstable, and a rock burst may be formed. It is also found that under the effect of the stress concentration of the pillar, the floor rock will be damaged to a certain depth. When the collapse height of the overlying strata overlaps with the failure depth of the floor due to the stress concentration, it is more likely to bring about the occurrence of rock burst. The mechanisms of progressive failure of the residual pillars and rock strata revealed by this study offers guidance for the control of disasters, and also provides a reference for the stability research during goaf utilization in the later stage.

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In recent years, nature-induced urban disasters in high-density modern cities in China have raised great concerns. The delayed and imprecise understanding of the real-time post-disaster situation made it difficult for the decision-makers to find a suitable emergency rescue plan. To this end, this study aims to facilitate the real-time performance and accuracy of on-site victim risk identification. In this article, we propose a victim identification model based on the You Only Look Once v7-W6 (YOLOv7-W6) algorithm. This model defines the "fall-down" pose as a key feature in identifying urgent victims from the perspective of disaster medicine rescue. The results demonstrate that this model performs superior accuracy (mAP@0.5, 0.960) and inference speed (5.1 ms) on the established disaster victim database compared to other state-of-the-art object detection algorithms. Finally, a case study is illustrated to show the practical utilization of this model in a real disaster rescue scenario. This study proposes an intelligent on-site victim risk identification approach, contributing significantly to government emergency decision-making and response.

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BACKGROUND: How ambulance clinicians (ACs) handle a mass casualty incident (MCI) is essential for the suffered, but the training and learning for the ACs are sparse and they don't have the possibility to learn without realistic simulation training. In addition, it is unclear what type of dilemmas ACs process in their clinical reasoning during an MCI. With virtual reality (VR) simulation, the ACs clinical reasoning can be explored in a systematic way. Therefore, the objective was to explore ambulance clinicians' clinical reasoning when simulating a mass casualty incident using virtual reality. METHODS: This study was conducted as an explorative interview study design using chart- stimulated recall technique for data collection. A qualitative content analysis was done, using the clinical reasoning cycle as a deductive matrix. A high-fidelity VR simulation with MCI scenarios was used and participants eligible for inclusion were 11 senior ACs. RESULTS/CONCLUSION: All phases of the clinical reasoning cycle were found to be reflected upon by the participants during the interviews, however with a varying richness of analytic reflectivity. Non-analytic reasoning predominated when work tasks followed specific clinical guidelines, but analytical reasoning appeared when the guidelines were unclear or non-existent. Using VR simulation led to training and reflection on action in a safe and systematic way and increased self-awareness amongst the ACs regarding their preparedness for MCIs. This study increases knowledge both regarding ACs clinical reasoning in MCIs, and insights regarding the use of VR for simulation training.

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BACKGROUND: The recent crises of bushfires, floods, and the COVID-19 pandemic on the southeast coast of Australia were unprecedented in their extent and intensity. Few studies have investigated responses to cumulative disasters in First Nations communities, despite acknowledgement that these crises disproportionately impact First Nations people. This study was conducted by Aboriginal and non-Aboriginal researchers in partnership with Waminda, South Coast Women's Health and Wellbeing Aboriginal Corporation, an Aboriginal Community Controlled Health Organisation (ACCHO). It investigated the collective experiences of people affected by cumulative disasters to identify the practices that support healing, and recovery for Aboriginal communities. The study addresses a knowledge gap of how Waminda, designs, manages and delivers responses to address complex health and social issues in the context of cumulative disasters. METHODS: Underpinned by practice theory this study employed Indigenous-informed, narrative inquiry. Culturally-appropriate, multiple interpretive methods were used to collect data including: observations; yarns with Aboriginal community members, yarns with Waminda practitioners, management and board members; interviews-to-the-double, visual images and documentation. The data were collated and analysed using the phases of reflexive thematic analysis. RESULTS: The paper articulates a suite of culturally safe and place-based practices that enhance social, emotional and spiritual well-being following cumulative disasters. These practice bundles include: adopting a Country-centred conception of local communities; being community-led; viewing care as a collective, relational, sociomaterial accomplishment and having fluid boundaries. These practice bundles 'hang together' through organising practices including the Waminda Model of Care, staff wellbeing framework and emergency management plan which orient action and manage risks. The paper demonstrates the need for disaster responses to be community-led and culturally situated. ACCHOs are shown to play a crucial role, and their local responses to immediate community needs are grounded in contextual knowledge and use existing resources rather than relying on mainstream system-wide interventions. CONCLUSIONS: The paper suggests crafting responses that focus on assisting communities (re)gain their sense of belonging, hope for the future, control over their lives and their capacities to care for and to be cared for by Country, are key to both enhancing healing, health and well-being and harnessing the strengths of communities.

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Natural disasters, such as the eruption of the "Tajogaite" volcano on the Spanish island of La Palma, might have a high impact on the mental health of those who experience them. This study aims to evaluate the mental state of La Palma's population on the acute phase of the event as well as two and seven months later. The main hypothesis was that levels of anxiety will decrease in time, while depression and perceived stress levels will remain stable. Levels of depression, anxiety, perceived stress and psychological well-being were measured, as well as their relationship and certain demographic variables such as age, gender and residential situation. Results showed that anxiety and perceived stress significantly decreased with time, but depression and well-being remained stable. Moreover, higher levels of depression could be partly explained by higher anxiety and perceived stress, previous pharmacological treatment, and lower levels of well-being. Also, being a woman, higher levels of perceived stress, living in a region affected by the eruption, and previous pharmacological treatment significantly predicted higher anxiety; being a woman, higher levels of anxiety and lower levels of well-being significantly predicted higher perceived stress. Finally, higher levels of well-being could be partly explained by lower levels of depression and perceived stress, and not living alone. This study was able to identify particularly vulnerable groups during natural disasters, such as the eruption of a volcano. This is important to provide early psychological care to those who need it in these situations.

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