{"title":"The One Health approach to Strongyloides stercoralis.","authors":"Jiayin Lyu, Xiaoyin Fu, Dengyu Liu","doi":"10.1093/trstmh/traf003","DOIUrl":"https://doi.org/10.1093/trstmh/traf003","url":null,"abstract":"<p><p>The One Health concept systematically considers the health of humans, animals and the environment, emphasizing population and ecosystem health based on individual health. Strongyloides stercoralis is a soil-transmitted opportunistic pathogenic parasite that can cause strongyloidiasis in both humans and animals, potentially leading to severe disease or even death in immunocompromised hosts. This article outlines the epidemiological status, diagnosis and treatment methods of strongyloidiasis. It also discusses effective response strategies based on the One Health approach to actively cope with the zoonotic risk of S. stercoralis and promote human health development.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143415300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Valeria S Garcia, Maira S Gutiérrez, Verónica D G Gonzalez, Luis M Gugliotta, Alexis Burna, Diego Eiras, Matías S Cabeza, Diego G Arias, Sergio A Guerrero
{"title":"Evaluation of suitability of two tools for the diagnosis of canine visceral leishmaniasis.","authors":"Valeria S Garcia, Maira S Gutiérrez, Verónica D G Gonzalez, Luis M Gugliotta, Alexis Burna, Diego Eiras, Matías S Cabeza, Diego G Arias, Sergio A Guerrero","doi":"10.1093/trstmh/traf012","DOIUrl":"https://doi.org/10.1093/trstmh/traf012","url":null,"abstract":"<p><strong>Background: </strong>Leishmaniasis still imposes a heavy burden on many health systems and remains a public health problem. Early diagnosis in dogs, which act as a major reservoir for the pathogen, is central. The intention of epidemiologic studies is to identify the disease early, allowing rapid intervention to reduce its effects. This study aimed to develop two types of diagnostics tools, an enzyme-linked immunosorbent assay (ELISA) and a lateral flow immunochromatography assay for recognizing canine visceral leishmaniasis (CVL).</p><p><strong>Methods: </strong>Multiwell ELISA plates were sensitized and strips were designed with the same chimeric recombinant antigen from Leishmania spp. (LeQuiDi) and the results were compared. The sera panel contained 409 samples, including 244 positives and 165 negatives. Of the 165 negative sera, 67 were obtained from Corrientes city, an endemic area for CVL in Argentina, and 98 of this group from La Plata city, a non-endemic area in Argentina (they were seropositive for other infections, as specificity control).</p><p><strong>Results: </strong>Serum with an elevated concentration of lipids, or bilirubin, or a variable percentage of haemolysis were tested without interference. Both the sensitivity and specificity of the LeQuiDi-based tests were high: ≥93% for ELISA and ≥87% for LFIA.</p><p><strong>Conclusions: </strong>Our study introduces LeQuiDi as a promising antigen for CVL diagnosis, regardless of the test format.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143410936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anil M Philip, Jim O John, Lina J George, Sethu Rajan
{"title":"Challenges in managing hump-nosed pit viper envenomation in southern India: a case study.","authors":"Anil M Philip, Jim O John, Lina J George, Sethu Rajan","doi":"10.1093/trstmh/traf016","DOIUrl":"https://doi.org/10.1093/trstmh/traf016","url":null,"abstract":"<p><p>Snakebites are a significant health risk in India, with the 'Big Four' venomous species often overshadowing other deadly snakes like the hump-nosed pit viper (Hypnale hypnale). Despite its increasing recognition for causing severe envenomation, this species remains under-reported and inadequately addressed in treatment protocols. A woman aged in her sixties was bitten by a suspected hump-nosed pit viper while working in the fields. Despite receiving 26 vials of polyvalent antisnake venom, she developed persistent coagulopathy and anaphylaxis, requiring fresh frozen plasma and antibiotics. Coagulopathy and bleeding were controlled by day 5.This case highlights the need for species-specific antivenoms and improved management protocols for envenomation by Hypnale hypnale.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143400137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jonathan David Roberts, Lorna L Waddington, Rupert J Quinnell, Alison M Dunn
{"title":"The impact of multiple infections and community knowledge on engagement with a historical deworming programme: hookworm and Ascaris in Jamaica, 1913-1936.","authors":"Jonathan David Roberts, Lorna L Waddington, Rupert J Quinnell, Alison M Dunn","doi":"10.1093/trstmh/traf010","DOIUrl":"https://doi.org/10.1093/trstmh/traf010","url":null,"abstract":"<p><strong>Introduction: </strong>Community engagement with public health efforts often depends on existing knowledge of a health issue.</p><p><strong>Methods: </strong>Here, qualitative analysis of archival material from the Jamaica Hookworm Commission (1919-1936) and quantitative analysis of prevalence data are used to assess knowledge of and ecological interactions between different helminths during a historical hookworm eradication campaign.</p><p><strong>Results: </strong>Archival sources demonstrate that Jamaicans were familiar with Ascaris lumbricoides. Surveys revealed a high prevalence of hookworm (62% of individuals infected), Ascaris (30%) and Trichuris trichiura (32%) in communities targeted for hookworm control. Community prevalence of Trichuris was positively associated with the prevalence of Ascaris and hookworm. Many individuals were infected with more than one parasite. At an individual level, data from hospital patients and soldiers showed significant associations between all three parasites. The co-occurrence of hookworm and Ascaris, alongside folk treatment of Ascaris with the same plant used by the Hookworm Commission (Chenopodium ambrisoides) to treat hookworm, made biomedical claims about hookworm credible and biomedical treatment more acceptable. Expulsions of Ascaris following treatment also provided dramatic proof of the effectiveness of treatment, further facilitating engagement.</p><p><strong>Discussion/conclusion: </strong>Knowledge of Ascaris and other helminths directly shaped engagement with hookworm treatment, demonstrating how folk medical knowledge, grounded in the biology of the worms, aided a biomedical public health program.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143400142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"From relief to resistance: implications of self-medication practice for malaria elimination in India.","authors":"Kanika Verma, Nitika Nitika, Praveen Kumar Bharti","doi":"10.1093/trstmh/traf008","DOIUrl":"https://doi.org/10.1093/trstmh/traf008","url":null,"abstract":"<p><p>The self-medication practices in India may pose challenges to malaria elimination efforts. While individuals often seek immediate relief from symptoms, the indiscriminate use of antimalarial medications can lead to increased resistance among malaria parasites. This study highlights the implications of self-medication on public health, exploring their impact on malaria elimination. Public awareness campaigns highlighting the risks of self-treatment, necessity of professional medical consultation and the need for malaria diagnosis prior to initiating treatment should be carried out. Addressing self-treatment practices will improve patient outcomes, mitigate the development of drug resistance in parasites and contribute to the goal of a malaria-free India.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brena Andrade de Lima Lobato, João Augusto Gomes de Souza Monteiro de Brito, José Maria de Castro Abreu Junior, Maísa Silva de Sousa, Carlos Augusto Moreira Silva, Thiago Xavier Carneiro, Rita Catarina Medeiros Sousa, Marília Brasil Xavier
{"title":"Phototherapy in lymphoproliferative and inflammatory diseases associated with human T-lymphotropic virus.","authors":"Brena Andrade de Lima Lobato, João Augusto Gomes de Souza Monteiro de Brito, José Maria de Castro Abreu Junior, Maísa Silva de Sousa, Carlos Augusto Moreira Silva, Thiago Xavier Carneiro, Rita Catarina Medeiros Sousa, Marília Brasil Xavier","doi":"10.1093/trstmh/traf009","DOIUrl":"https://doi.org/10.1093/trstmh/traf009","url":null,"abstract":"<p><strong>Background: </strong>Dermatological manifestations affect 5% of patients with human T-lymphotropic virus (HTLV).</p><p><strong>Methods: </strong>Thirteen patients with inflammatory or lymphoproliferative dermatological diseases, both HTLV-positive and HTLV-negative, were selected for treatment with ultraviolet B narrowband (UVB-NB) phototherapy. Clinical and histopathological evaluations were conducted before and after 120 d of phototherapy.</p><p><strong>Results: </strong>All seven HTLV-positive patients evaluated were type 1. Clinical evaluation showed improvement in all 13 patients. In the histopathological examination, all patients with lymphoproliferative diseases and five with inflammatory diseases showed regression in most of the assessed parameters.</p><p><strong>Conclusions: </strong>The present research suggests that UVB-NB phototherapy is a promising treatment for lymphoproliferative and inflammatory skin diseases in HTLV-1 patients.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unlocking the potential of blood-stage vaccines for malaria elimination.","authors":"Shrikant Nema, Sumit Rathore, Asif Mohmmed, Pawan Malhotra","doi":"10.1093/trstmh/traf013","DOIUrl":"https://doi.org/10.1093/trstmh/traf013","url":null,"abstract":"<p><p>Malaria vaccines are crucial for advancing public health and achieving malaria elimination. Currently, pre-erythrocytic vaccines like RTS, S/AS01 and R21/Matrix-M are in use, but their effectiveness is limited. Ongoing research on blood-stage vaccine candidates such as RH5, MSP1 and MSP3 has shown promising results. Incorporating a blood-stage vaccine could greatly enhance malaria control by targeting the symptomatic phase of the infection, providing additional protection alongside pre-erythrocytic vaccines and other control methods. Understanding the structural biology and immunological interactions of blood-stage antigens is essential for developing effective vaccines. Combining pre-erythrocytic and erythrocytic-stage vaccines could lead to better protection, improved public health outcomes and significant progress toward malaria elimination.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Frank-Leonel Tianyi, Maya Gopalakrishnan, Thomas Pinfield
{"title":"Special Issue Editorial: Sustainably reducing snakebite burden by prioritising research(ers) in high-risk areas.","authors":"Frank-Leonel Tianyi, Maya Gopalakrishnan, Thomas Pinfield","doi":"10.1093/trstmh/traf007","DOIUrl":"https://doi.org/10.1093/trstmh/traf007","url":null,"abstract":"","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrew Larkins, Boualay Keokhamphavanh, Breanna Knight, Kelly Taggart, Sarah Keatley, Bounnaloth Insisiengmay, Amanda Ash
{"title":"Diagnostic sensitivity of formalin-fixed faecal microscopy for the detection of soil-transmitted helminths.","authors":"Andrew Larkins, Boualay Keokhamphavanh, Breanna Knight, Kelly Taggart, Sarah Keatley, Bounnaloth Insisiengmay, Amanda Ash","doi":"10.1093/trstmh/traf011","DOIUrl":"https://doi.org/10.1093/trstmh/traf011","url":null,"abstract":"<p><strong>Background: </strong>Faecal microscopy is the mainstay of soil-transmitted helminth diagnosis and commonly completed on formalin-fixed samples when resources are insufficient to analyse fresh samples. This study assessed the diagnostic sensitivity of microscopic techniques using formalin-fixed samples.</p><p><strong>Methods: </strong>Formalin-fixed faecal samples from 574 individuals were tested by the formalin-ethyl acetate concentration technique (FECT), Malachite smear, McMaster and McMaster2 methods. Agreement between tests was assessed by Kappa. Bayesian latent class models and a composite reference standard estimated the diagnostic sensitivity of each test.</p><p><strong>Results: </strong>Moderate-to-good agreement between tests was observed for A. lumbricoides. Agreement was poorer for hookworm and Trichuris trichiura. The FECT (72.70%, credible interval [CrI]: 68.92-76.56%) and McMaster2 method (67.93%, 95% CrIs: 62.41-73.31%) had the highest sensitivities for A. lumbricoides. For hookworm, the McMaster2 method (70.56%, 95% CrIs: 64.10-76.96%) was more sensitive than all other tests. For T. trichiura, the McMaster (90.10%, 95% CrIs: 83.29-94.67%) and McMaster2 (89.3%, 95% CrIs: 82.28-94.52%) methods were the most sensitive.</p><p><strong>Conclusions: </strong>The McMaster2 method is a viable alternative to FECT and provides important information on the intensity of infection. The effect of formalin-fixation on test performance may not be as great as previously assumed. This study reports formalin-fixed sensitivities similar to previous estimates using fresh samples.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Suyash Jha, Nitin Gupta, Tirlangi Praveen Kumar, Kiran Chawla, Vishnu P Shenoy, Muralidhar Varma, Mohan K Manu
{"title":"Impact of repeat testing in tuberculosis patients with a trace call on Xpert MTB/RIF Ultra: a retrospective cohort study.","authors":"Suyash Jha, Nitin Gupta, Tirlangi Praveen Kumar, Kiran Chawla, Vishnu P Shenoy, Muralidhar Varma, Mohan K Manu","doi":"10.1093/trstmh/traf002","DOIUrl":"https://doi.org/10.1093/trstmh/traf002","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to see if rifampicin susceptibility can be determined on repeat sampling in pulmonary tuberculosis with a trace call on the first GeneXpert Ultra report.</p><p><strong>Methods: </strong>This retrospective cohort study included adults with a GeneXpert Ultra trace call in the first respiratory sample from January 2021 to June 2024.</p><p><strong>Results: </strong>Of the 27 patients with repeat sampling done after the initial trace call, rifampicin susceptibility could be determined in 37% (n=10) of patients.</p><p><strong>Conclusions: </strong>Repeating GeneXpert Ultra testing in patients with an initial trace call is valuable for determining rifampicin susceptibility.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}