In sub-Saharan Africa (sSA), there is high morbidity and mortality from severe bacterial infection and this is compounded by antimicrobial resistance, in particular, resistance to 3rd-generation cephalosporins. This resistance is typically mediated by extended-spectrum beta lactamases (ESBLs). To interrupt ESBL transmission it will be important to investigate how human behaviour, water, sanitation, and hygiene (WASH) practices, environmental contamination, and antibiotic usage in both urban and rural settings interact to contribute to transmission of ESBL E. coli and ESBL K. pneumoniae between humans, animals, and the environment. Here we present the protocol for the Drivers of Resistance in Uganda and Malawi (DRUM) Consortium, in which we will collect demographic, geospatial, clinical, animal husbandry and WASH data from a total of 400 households in Uganda and Malawi. Longitudinal human, animal and environmental sampling at each household will be used to isolate ESBL E. coli and ESBL K. pneumoniae. This will be complimented by a Risks, Attitudes, Norms, Abilities and Self-Regulation (RANAS) survey and structured observations to understand the contextual and psychosocial drivers of regional WASH practices. Bacterial isolates and plate sweeps will be further characterised using a mixture of short-,long-read and metagenomic whole-genome sequencing. These datasets will be integrated into agent-based models to describe the transmission of EBSL resistance in Uganda and Malawi and allow us to inform the design of interventions for interrupting transmission of ESBL-bacteria.
Objective Across Africa, the impact of COVID-19 continues to be acutely felt. This includes Malawi, where a key component of health service delivery to mitigate against COVID-19 are the primary healthcare facilities, strategically placed throughout districts to offer primary and maternal healthcare. These facilities have limited infrastructure and capacity but are the most accessible and play a crucial role in responding to the COVID-19 pandemic. This study assessed health facility preparedness for COVID-19 and the impact of the pandemic on health service delivery and frontline workers. Setting Primary and maternal healthcare in Blantyre District, Malawi. Participants We conducted regular visits to 31 healthcare facilities and a series of telephone-based qualitative interviews with frontline workers (n=81 with 38 participants) between August 2020 and May 2021. Results Despite significant financial and infrastructural constraints, health centres continued to remain open. The majority of frontline health workers received training and access to preventative COVID-19 materials. Nevertheless, we found disruptions to key services and a reduction in clients attending facilities. Key barriers to implementing COVID-19 prevention measures included periodic shortages of resources (soap, hand sanitiser, water, masks and staff). Frontline workers reported challenges in managing physical distancing and in handling suspected COVID-19 cases. We found discrepancies between reported behaviour and practice, particularly with consistent use of masks, despite being provided. Frontline workers felt COVID-19 had negatively impacted their lives. They experienced fatigue and stress due to heavy workloads, stigma in the community and worries about becoming infected with and transmitting COVID-19. Conclusion Resource (human and material) inadequacy shaped the health facility capacity for support and response to COVID-19, and frontline workers may require psychosocial support to manage the impacts of the COVID-19 pandemic.
Background: Community-based behavior change interventions are a common approach to Water, Sanitation, and Hygiene (WASH). Yet, published evaluations of how these interventions work in district-wide approaches are rare. Objective: This study reports the baseline characteristics and study design for a trial assessing the effectiveness of a district-level Community-led Total Sanitation (CLTS) intervention compared to the additional integration of local care groups (CG) on sanitation coverage and use and hygiene behaviors in Chiradzulu District, Malawi. Methods: This study is a controlled before-and-after trial with 2 treatment arms and a control group. Clusters are rural villages in 3 traditional authorities (TAs). One arm will receive CLTS and the CG model (CLTS+CG group), one arm CLTS only (CLTS group), and one group will serve as the control. The trial is part of the wider WASH for Everyone (W4E) project, led by World Vision Malawi that aims to expand access to WASH services across the entire district by 2025. Study participants were selected from the 3 TAs. Systematic sampling procedures were used to select 20 households per cluster with a total of 1400 households at both baseline and end line. The primary outcome is sanitation coverage. Secondary outcome measures include sanitation use, safe disposal of child feces, observed handwashing facility, and Sanitation-related Quality of Life Index (SanQoL-5). Results: The baseline observations indicate a balanced distribution of potential demographic confounders in the trial arms with a slight variation on some WASH proxy measures. We noted the low coverage of handwashing facilities with soap and water in all 3 arms: 8% in the CLTS group, 4% in the CLTS+CG group, and 4% in the control group. There was a marginal variation in handwashing practices among the study arms with 3% of individuals handwashing with soap and water in the CLTS group, 5% in the CLTS+CG group, and 2% in the control group. Sanitation coverage also varied among the study arms at baseline as 83% of households had access to unimproved sanitation in the CLTS group, 70% in the CLTS+CG group, and 81% in the control group. Conclusions: Results from this trial will provide evidence on whether the CLTS+CG approach is effective at improving sanitation and hygiene practices in the W4E program area compared to CLTS alone and no intervention, as well as inform implementing partners on future interventions in Chiradzulu District, Malawi. The results are expected to be published in 2025. Trial Registration: ClinicalTrials.gov NCT05808218; https://clinicaltrials.gov/study/NCT05808218 International Registered Report Identifier (IRRID): RR1-10.2196/68280
Mental disorders have the potential to affect an individual’s capacity to perform household daily activities such as water, sanitation, and hygiene (food hygiene inclusive) that require effort, time, and strong internal motivation. However, there is limited detailed assessment about the influence of mental health on food hygiene behaviors at household level. We conducted a follow-up study to detect the effects of mental health on food hygiene behaviors after food hygiene intervention delivery to child caregivers in rural Malawi. Face-to-face interviews, based on the Risk, Attitude, Norms, Ability, and Self-regulations (RANAS) model, were conducted with 819 participants (control and intervention group) to assess their handwashing and food hygiene-related behaviors. Mental health was assessed using the validated Self-Reporting Questionnaire. Study results showed a significant negative relationship between mental health and handwashing with soap behavior (r = −0.135) and keeping utensils in an elevated place (r = −0.093). Further, a significant difference was found between people with good versus poor mental health on handwashing with soap behavior (p = 0.050) among the intervention group. The results showed that the influence of the intervention on handwashing with soap behavior was mediated by mental health. Thus, integration of mental health in food hygiene interventions can result in improved outcomes for caregivers with poor mental health.
The One Health paradigm considers the interdependence of human, animal and environmental health. In high-income countries, limited evidence has been found from recent studies to support the importance of a One Health approach to addressing spread of antimicrobial resistance (AMR). Given AMR is a global threat, and we are all interconnected it would be important to know if closer interaction of humans with animals and the environment in low-income present a contrasting picture. We used whole genome sequencing to investigate the genomic diversity and to infer transmission of extended spectrum beta-lactamase producing Escherichia coli (ESBL-Ec) between different ecological niches (humans, animals and the environment). We found high diversity of ESBL-Ec with 172 genomic clusters and 167 sequence types identified from 2,344 genomes. Common ESBL genes, blaCTX-M-15 (67.6%) and blaCTX-M-27 (14.2%) were carried on a complex network of different plasmids, presenting multiple pathways for dissemination and revealing the high force of selection. Using fine-scale genomic clustering across multiple thresholds ranging from 0 to 20 single nucleotide polymorphisms, we found that genomes isolated from humans, animals and the environment formed overlapping clusters, indicating recent ESBL-Ec transmission and co-circulation both within and between ecological compartments. These findings demonstrate that the One Health approach is highly relevant to tackling AMR in low-income settings, and therefore critical to consider if we are to address the rise of AMR globally.
11 March 2025 in Environmental Monitoring and Assessment