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Found 526 matches for
Oxford Centre for Tropical Medicine and Global Health
Identification of Southeast Asian Anopheles mosquito species with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry using a cross-correlation approach
Posted 17/01/2025. Victor Chaumeau and colleagues developed a reference MALDI-TOF mass spectra database for the identification of Anopheles mosquitoes from the Thailand-Myanmar border allowing rapid, affordable and accurate identification of medically important vector species, an important prerequisite to assess disease transmission and evaluate vector control. This is the first free open-source data analysis pipeline allowing anyone to replicate the analysis and develop reference database in-house.
Sustainable antimicrobial resistance surveillance: time for a global funding mechanism
Posted 07/01/2025. The continued costs of a standard national AMR surveillance system are predicted to account for over 5% of the total domestic general government health expenditure (GGHE-D) for 28 LMICs and more than 2% of GGHE-D for 46 LMICs. This high cost is not sustainable without a long-term global financing mechanism. By Liz Ashley
AmpC β-lactamases detected in Southeast Asian Escherichia coli and Klebsiella pneumoniae
Posted 20/12/2024. AmpC β-lactamases are a neglected cause of third generation cephalosporin resistance in Southeast Asia. This collaboration between COMRU, LOMWRU and SMRU showed that AmpC β-lactamases are an important cause of infection, though infections may be going undetected due to a lack of testing resulting in sub-optimal treatment for patients. By Tamalee Roberts
Population genomics and transcriptomics of Plasmodium falciparum in Cambodia and Vietnam uncover key components of the artemisinin resistance genetic background
Posted 17/12/2024. Tom Peto and colleagues collected Plasmodium falciparum parasites from malaria patients in Cambodia and Vietnam between 2018 and 2020 in the MORU-led TACT-CV study. Novel molecular analyses of these samples at Nanyang Technological University identified new genetic factors that appear under selective pressure and may contribute to artemisinin resistance mechanisms in clinical settings.
A hill tribe community advisory board in Northern Thailand: lessons learned one year on
Posted 22/11/2024. Since 2023 the Chiang Rai community advisory board helped researchers understand the many local ethnic minority groups of Northern Thailand and vice-versa, improving cooperation and research activities. Over time, benefits have grown. Carlo Perrone and colleagues present their experience one year on, supporting long-term partnerships over project-based ones.
Community engagement to develop a dialogue-drama on adolescent pregnancy in a marginalised migrant population on the Thailand-Myanmar border: an ethnographic approach to participatory action research
Posted 20/11/2024. A participatory-action approach involving community members and adolescents resulted in a dialogue-drama (Karen and Burmese versions) on adolescent pregnancy, contraception, and choice in the event of an unplanned pregnancy. The dialogue-drama augmented discussion of traditionally taboo issues and this ethnographic method is potentially useful for similar global health settings. By Rose McGready
Prevalence and risk factors of vitamin D deficiency among Afghan primary school children
Posted 19/11/2024. Bob Taylor and colleagues determined that vitamin D deficiency is exceptionally high, 85%, in 510 5-15 years-old school children from Kandahar city, Afghanistan. Half had severe deficiency. Older children from poor families with limited outdoor activity and inadequate sun exposure were more likely to be deficient. These data provide evidence for a mitigation strategy.
Non-invasive detection of bilirubin concentrations during the first week of life in a low-resource setting along the Thailand–Myanmar border
Posted 22/10/2024. Severe neonatal hyperbilirubinaemia is often diagnosed late in low-resources settings because of lack of point-of-care tools. In this study, Germana Bancone and SMRU researchers have evaluated the performance of a transcutaneous bilirubinometer for screening of neonates born along the Thai-Myanmar border. The study was supported by a Wellcome Trust iTPA grant.
Artemisinin-resistant malaria
Posted 18/10/2024. Nick White and K. Chotivanich publish a review of mechanisms, genetic associations, phenotyping, epidemiology and current status of artemisinin resistance, and a brief discussion of policies and potential counter-measures.
In-host modeling of dengue virus and non-structural protein 1 and the effects of ivermectin in patients with acute dengue fever
Posted 09/10/2024. Junjie Ding and the MORU Clinical Pharmacology Team developed an in-host dengue kinetic model to quantitatively predict drug effects in dengue fever. This model offers valuable insights to inform dengue drug development, and shows that ivermectin reduces NS1 but not viral load. The results are published in a leading PK/PD modelling journal, CPT:PSP.
Prevalence and associated risk factors of stunting, wasting/thinness, and underweight among primary school children in Kandahar City, Afghanistan: a cross-sectional analytical study
Posted 17/09/2024. Bob Taylor and colleagues investigated 1205 primary school children in Kandahar and found almost 50% were stunted, 25% were underweight and 20% wasted. Risk factors for stunting in 6–9 year old children were poverty, skipping breakfast, and being a girl from a large family with an uneducated mother and an unemployed father.
Anti-infectivity efficacy and pharmacokinetics of WHO recommended single low-dose primaquine in children with acute Plasmodium falciparum in Burkina Faso: study protocol
Posted 11/09/2024. The Groupe de Recherche Action en Santé, a Developing Paediatric Primaquine project partner, will assess, for the first time, the transmission blocking efficacy of allometrically-scaled, single low-dose primaquine, using the WHO-recommended 0.25 mg/kg target dose, in under-5 Burkinabe children with uncomplicated Plasmodium falciparum. The study protocol is now published. By Bob Taylor.
Frequency of antimicrobial-resistant bloodstream infections in 111 hospitals in Thailand, 2022
Posted 10/09/2024. Collaborating with the Ministry of Public Health, Direk Limmathurotsakul and colleagues utilised an automated tool, evaluated and reported the frequency of antimicrobial-resistant (AMR) infection in 111 public hospitals in Thailand in 2022. Our approach and findings highlight health regions and hospitals where actions against AMR infection, including antimicrobial stewardship and infection control, should be prioritised.
New WHO classification of genetic variants causing G6PD deficiency
Posted 04/09/2024. Over 50 years after its first publication, this revised classification of G6PD genetic variants is the result of the 2022 WHO Global Malaria Programme experts’ consultation led by Professor Lucio Luzzatto. The new classification reconciles biochemical and clinical aspects of the different G6PD mutations and provides a reliable reference for scientists and clinicians. By Germana Bancone.
Genetic diversity, determinants, and dissemination of Burkholderia pseudomallei lineages implicated in melioidosis in Northeast Thailand
Posted 15/07/2024. A recent study from northeast Thailand identified three major bacterial lineages responsible for melioidosis in the region. Each lineage carries unique gene sets that likely contribute to successful dissemination. These genes are expressed under environmental rather than infectious conditions, with one lineage showing overexpression under nutrient deprivation, highlighting environmental persistence is a prerequisite for infection. By Claire Chewapreecha
Understanding patient and family experiences of critical care in Bangladesh and India: What are the priority actions to promote person-centred care?
Posted 17/07/2024. A large multidisciplinary team conducted qualitative research in five ICUs in Bangladesh and India. They found that less restrictive ICU visiting policies improved experiences for patients and families – and the family’s presence at the bedside could improve patient care. Supporting nurses to give routine updates promoted better communication with families. By Rebecca Inglis
A randomised trial of malaria vaccine R21/Matrix-M™ with and without antimalarial drugs in Thai adults
Posted 16/07/2024. Borimas Hanboonkunupakarn and coworkers from MORU and the Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand have shown that the co administration of the malaria vaccine R21/matrix M combined with the antimalarials drugs DHA/piperaquine and the single low dose primaquine does not interfere with the immunogenicity of the vaccine or the concentrations of piperaquine.
Embedding community and public voices in co-created solutions to mitigate antimicrobial resistance (AMR) in Thailand using the ‘Responsive Dialogues’ public engagement framework
Posted 11/17/2024. Tackling antimicrobial resistance requires collaboration between communities, stakeholders and researchers. In the ‘AMR Dialogues’ project, Tassawan Poomchaichote, Phaik Yeong Cheah and colleagues conducted a series of conversations, bringing together people from different backgrounds. This paper summarises issues identified across Thailand and highlights four locally actionable ‘building blocks’ of co-created solutions.
Estimated global and regional economic burden of genital herpes simplex virus infection among 15–49 year-olds in 2016
Poster 09/07/2024. Genital herpes infections and their related complications lead to billions of dollars in health care expenditures and productivity losses globally, say researchers who calculated the first-ever global estimates of the economic costs of these conditions. The study calls for greater investment in prevention of herpes transmission, including concerted efforts to develop effective vaccines against this common virus. By Puttarin Kulchaitanaroaj; MAEMOD, MORU.
Impact of targeted drug administration and intermittent preventive treatment for forest goers using artesunate–pyronaridine to control malaria outbreaks in Cambodia
Posted 25/06/2024. The national malaria programme of Cambodia targets the rapid elimination of all human malaria by 2025. As clinical cases decline to near-elimination levels, an effective response to malaria outbreaks becomes the vital strategy. Authors report a programmatic response to a 2022 Plasmodium falciparum outbreak in Kravanh district, western Cambodia. By Bipin Adhikari.