{"title":"Understanding noma: WHO's recognition and the path forward in global health.","authors":"Prakasini Satapathy, Sarvesh Rustagi, Pawan Kumar, Mahalaqua Nazli Khatib, Shilpa Gaidhane, Quazi Syed Zahiruddin, Abhay M Gaidhane, Mehrab Neyazi, Ahmad Neyazi","doi":"10.1093/trstmh/trae031","DOIUrl":"10.1093/trstmh/trae031","url":null,"abstract":"<p><p>The World Health Organization's (WHO) designation of noma as a neglected tropical disease (NTD) on 15 December 2023 marks a crucial advancement in global health efforts. This move sheds light on a condition predominantly affecting undernourished children in isolated regions of sub-Saharan Africa. Recognized as the 21st NTD, noma, or cancrum oris, is a serious condition leading to orofacial gangrene. The disease largely impacts young children and those with compromised immune systems, including individuals with human immunodeficiency virus or leukaemia. Determining the exact prevalence of noma is complex, hindered by rapid disease progression, societal stigma and a lack of reporting, especially in impoverished areas. The WHO's acknowledgment is a significant step, emphasizing the need for more in-depth research and resources to address this overlooked disease. It highlights the critical role of multifaceted prevention strategies, including economic empowerment, improved nutrition and enhanced vaccination efforts. This recognition is pivotal in guiding international health initiatives towards better outcomes for some of the most at-risk populations globally.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140872108","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":"A molecular survey of zoonotic pathogens of public health importance in rodents/shrews and their ectoparasites trapped in Puducherry, India.","authors":"Brenna Eikenbary, Panneer Devaraju, Aravindasamy Chakkravarthi, Krishan Kumar Sihag, Terence Nathan, Gowdham Thangaraj, Lakshmy Srinivasan, Ashwani Kumar","doi":"10.1093/trstmh/trae033","DOIUrl":"10.1093/trstmh/trae033","url":null,"abstract":"<p><strong>Background: </strong>Globally, India has a high zoonotic disease burden and lacks surveillance data in humans and animals. Rodents are known reservoirs for many zoonotic diseases and their synanthropic behavior poses a great public health threat.</p><p><strong>Methods: </strong>In this study, trapped rodents/shrews from randomly selected villages within Puducherry, India, and their ectoparasites were screened for zoonotic pathogens, namely, Orientia tsutsugamushi, other pathogenic rickettsiae, Leptospira spp., Cryptosporidium spp., Coxiella burnetii and methicillin-resistant Staphylococcus aureus (MRSA) using conventional PCR. A total of 58 rodents/shrews were trapped from 11 villages. The species trapped were Suncus murinus (49/58, 84.48%), Rattus rattus (8/58, 13.79%) and Rattus norvegicus (1/58, 1.72%). All ectoparasites collected were identified as mites and its infestation rate was 46.55% (27/58).</p><p><strong>Results: </strong>Real-time PCR targeting the 47 kDa gene of O. tsutsugamushi revealed positivity in one rodent and one shrew (3.45%) and two mite pools (7.41%). Conventional PCR targeting the 56 kDa gene revealed positivity in one shrew and two mite pools and the phylogenetic analysis of all three amplicons indicated the circulation of the Gilliam-related serotype. MRSA was detected in the alimentary tract of a shrew (1/32, 3.13%). Leptospira spp., Rickettsia, Cryptosporidium spp. and Co. burnetii tested negative.</p><p><strong>Conclusions: </strong>The detection of zoonotic pathogens within reservoir hosts and vectors poses a risk of transmission to humans. This study signifies the need for zoonotic pathogen surveillance in synanthropic rodents/shrews.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141072011","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":"Impact of historical disease conditions on mortality and life expectancy in patients with advanced schistosomiasis in Hunan Province, China.","authors":"Honglin Jiang, Jie Zhou, Xinting Cai, Benjiao Hu, Huilan Wang, Chen Fu, Ning Xu, Yanfeng Gong, Yixin Tong, Jiangfan Yin, Junhui Huang, Jiamin Wang, Qingwu Jiang, Songyue Liang, Yibiao Zhou","doi":"10.1093/trstmh/trae052","DOIUrl":"https://doi.org/10.1093/trstmh/trae052","url":null,"abstract":"<p><strong>Background: </strong>Although the prognosis of advanced schistosomiasis patients has significantly improved, the impact of historical disease conditions on life expectancy remains unclear.</p><p><strong>Methods: </strong>Utilizing data from an advanced schistosomiasis cohort (n=10 362) from 2008 to 2019 in Hunan, China, we examined five historical disease conditions: times of praziquantel treatment, the history of ascites, splenectomy, upper gastrointestinal bleeding (UGIB) and hepatic coma. Using latent class analysis, participants were categorized into three groups: Group 1 (characterized by no risk conditions), Group 2 (had ≤3 times of praziquantel treatment without UGIB history) and Group 3 (had UGIB history). Life expectancies were calculated using the life table method.</p><p><strong>Results: </strong>At the age of 45 y, patients with ≤3 times of praziquantel treatment, a history of ascites, UGIB, hepatic coma and those without splenectomy exhibited lower life expectancies. Groups 1, 2 and 3 had estimated life expectancies of 32.32, 26.76 and 25.38 y, respectively. Compared with Group 1, women in Group 3 experienced greater life expectancy loss than those in Group 2, with the difference narrowing with age.</p><p><strong>Conclusions: </strong>Based on the consideration of overall physical conditions, tailored treatment and healthcare, along with public health interventions targeting diverse populations, could mitigate the prevalence of poor disease conditions and premature deaths.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141983368","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}
Gail Davey, Ivan Masete, Gabriel Matwale, Francis Mutebi, Marlene Thielecke, Fred Nuwaha, George Mukone, Kebede Deribe, Hope Simpson
{"title":"Podoconiosis in Uganda: prevalence, geographical distribution and risk factors.","authors":"Gail Davey, Ivan Masete, Gabriel Matwale, Francis Mutebi, Marlene Thielecke, Fred Nuwaha, George Mukone, Kebede Deribe, Hope Simpson","doi":"10.1093/trstmh/trae046","DOIUrl":"10.1093/trstmh/trae046","url":null,"abstract":"<p><strong>Background: </strong>Podoconiosis is a neglected debilitating yet preventable disease. Despite its public health significance, podoconiosis is often misdiagnosed and confused with lymphatic filariasis. No appropriate diagnostic tests exist, contributing to underestimation and the absence of control interventions.</p><p><strong>Methods: </strong>A population-based cross-sectional survey was conducted in seven districts with suspected or reported cases of podoconiosis or an altitude of 1200 m above sea level. Conducted from 30 January to 19 March 2023, the survey employed multilevel stratified sampling to reach eligible household members.</p><p><strong>Results: </strong>Of the 10 023 participants sampled, 187 (confidence interval 1.25 to 2.78) had clinical features of podoconiosis. The highest prevalence was recorded in Nakapiripirit (7.2% [58/809]) and Sironko (2.8 [44/1564]) and the lowest in Kasese (0.3% [5/1537]), but ranged from 1.1 to 1.8% in Zombo, Rukungiri, Gomba and Hoima districts. The duration of podoconiosis was reported to range from 1 to 57 y. Factors associated with podoconiosis occurrence included advanced age, tungiasis, household cleanliness and personal hygiene. Sleeping on a bed, bathing daily, use of soap and use of footwear in at least moderate condition were protective against podoconiosis.</p><p><strong>Conclusions: </strong>Podoconiosis occurred in all the sampled districts and was linked to personal hygiene. Long-standing cases suggest an absence of treatment. There is potential for early intervention using a holistic care model in managing this condition. Urgent action and stakeholder engagement are essential for effective podoconiosis management.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976729","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}
Raymond Bernard Kihumuro, Lorna Atimango, Timothy Mwanje Kintu, Conrad Makai, Andrew Marvin Kanyike, Joel Bazira
{"title":"Exploring healthcare professionals' perspectives on neglected tropical diseases in Eastern Uganda: a qualitative study with a focus on schistosomiasis and soil-transmitted helminths.","authors":"Raymond Bernard Kihumuro, Lorna Atimango, Timothy Mwanje Kintu, Conrad Makai, Andrew Marvin Kanyike, Joel Bazira","doi":"10.1093/trstmh/trae043","DOIUrl":"https://doi.org/10.1093/trstmh/trae043","url":null,"abstract":"<p><strong>Background: </strong>Neglected tropical diseases (NTDs), including soil-transmitted helminths (STHs) and schistosomiasis, continue to impose a heavy burden, especially in sub-Saharan Africa and Uganda, despite being preventable. Integration of NTD management into primary healthcare has been inadequate. While researchers have explored community perspectives, there is a notable gap in understanding the viewpoints of healthcare workers (HCW), which is crucial for effective NTD control strategies. This study explores HCW' perspectives in Eastern Uganda, highlighting challenges in schistosomiasis and STH prevention and management.</p><p><strong>Methods: </strong>In this qualitative descriptive study, we conducted semistructured interviews with 10 key informants who were HCW in Eastern Uganda with experience in managing STHs and schistosomiasis. Participants were selected purposively and interviewed through Zoom guided by a comprehensive interview guide. The data were transcribed, coded and analyzed thematically.</p><p><strong>Results: </strong>We identified five key themes regarding the impact and management of NTDs: (i) the burden of NTDs, where schistosomiasis and STHs were notably prevalent among children and communities adjacent to water bodies; (ii) transmission of NTDs, emphasizing water bodies and poor sanitation as primary routes of disease spread; (iii) clinical manifestations of NTDs, detailing the symptomatic presentations that complicate diagnosis and management; (iv) challenges in managing and diagnosing NTDs, highlighting the shortages of essential medications and diagnostic tools, along with the under-prioritization of NTDs within healthcare systems; and (v) fatalities and complications arising from NTDs, reporting on the severe outcomes and under-reporting of deaths associated with NTDs due to misdiagnosis, delayed treatment and traditional healing preferences.</p><p><strong>Conclusion: </strong>The interviewed Ugandan HCW demonstrated sufficient knowledge of schistosomiasis and STHs, but faced challenges due to inadequate diagnostic tools and medication shortages. The study underscores the need for NTD prioritization with direct funding and government involvement, alongside strategies that integrate continuous medical training, effective community outreach and an enhanced healthcare system response to reduce the burden of NTDs.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141902955","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}
Priyanka Kadam, Bhupeshwari Patel, Maya Gopalakrishnan, Freston M Sirur, Omesh K Bharti, Amit Agrawal, Md Yunus, Dayal B Majumdar, Stuart Ainsworth
{"title":"Reported snakebite mortality and state compensation payments in Madhya Pradesh, India, from 2020 to 2022.","authors":"Priyanka Kadam, Bhupeshwari Patel, Maya Gopalakrishnan, Freston M Sirur, Omesh K Bharti, Amit Agrawal, Md Yunus, Dayal B Majumdar, Stuart Ainsworth","doi":"10.1093/trstmh/trae045","DOIUrl":"10.1093/trstmh/trae045","url":null,"abstract":"<p><strong>Background: </strong>India experiences the highest snakebite burden globally, with 58 000 predicted deaths annually. The central Indian state of Madhya Pradesh is thought to have a substantial snakebite burden and provides compensation to families who can demonstrate by postmortem and hospital treatment reports that their relatives have died due to snakebite. This study represents the first report on the frequency of distribution of compensation for snakebite deaths in Madhya Pradesh.</p><p><strong>Methods: </strong>Statewide snakebite death compensation data from 2020-2021 and 2021-2022, provided by the Madhya Pradesh health authorities, were analysed alongside interviews with 15 families that described the events that ultimately led to their compensation claims.</p><p><strong>Results: </strong>Compensation was paid to a total of 5728 families, with a total value equating to 22 912 Lakhs (approximately US${$}$27.94 million). Families described commonly recognised snakebite risk factors and behaviours in the events that resulted in their relatives' deaths.</p><p><strong>Conclusions: </strong>The snakebite burden in Madhya Pradesh is significant, both in terms of mortality and economic expenditure of the state. Sustained investment in preventative interventions, as well as monitoring of the rate of compensation payouts due to snakebite death as a measure of intervention effectiveness, should be considered to substantially reduce snakebite incidence and mortality.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141894334","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}
Lida M S Ramos, Danielle S C A Pereira, Laila O V Oliveira, Carlos Graeff-Teixeira
{"title":"Accuracy of commercial ELISA and ICT for screening schistosomiasis infections at a low endemicity area in Brazil.","authors":"Lida M S Ramos, Danielle S C A Pereira, Laila O V Oliveira, Carlos Graeff-Teixeira","doi":"10.1093/trstmh/trae005","DOIUrl":"10.1093/trstmh/trae005","url":null,"abstract":"<p><strong>Background: </strong>Control interventions recommended by the World Health Organization have successfully resulted in low-intensity schistosomiasis transmission areas. To achieve elimination of transmission, new diagnostic screening tools are needed to overcome less than adequate sensitivity of the currently used Kato-Katz faecal thick smear method. Ideally, in-house serological tests should be avoided due to not having a continuous supply of kits as would be necessary for large population studies. Quality assurance provided by manufacturers and proper performance evaluations are also needed. We evaluated the accuracy of two commercially available serology tests as screening methods for detecting light schistosomiasis infections.</p><p><strong>Methods: </strong>Serum samples were collected in 2015 from individuals living in a low-endemicity locality in northeastern Brazil and deposited in a biorepository. We evaluated immunoglobulin G (IgG) and IgM enzyme-linked immunosorbent assays (ELISAs) and an immunochromatographic test (ICT). The Helmintex method was used to define true-positive samples.</p><p><strong>Results: </strong>Overall sensitivity was close to 90% for both the IgG ELISA and ICT, yet specificity was 28% and 18%, respectively. For the IgM ELISA, the values were estimated to be 55% and 43%, respectively.</p><p><strong>Conclusions: </strong>Poor specificity and positive predictive values prevent these tests from being recommended for screening populations in low-intensity schistosomiasis-endemic areas.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139944500","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}
Angus M O'Ferrall, Janelisa Musaya, J Russell Stothard, Adam P Roberts
{"title":"Aligning antimicrobial resistance surveillance with schistosomiasis research: an interlinked One Health approach.","authors":"Angus M O'Ferrall, Janelisa Musaya, J Russell Stothard, Adam P Roberts","doi":"10.1093/trstmh/trae035","DOIUrl":"10.1093/trstmh/trae035","url":null,"abstract":"<p><p>One Health surveillance involves the analysis of human, animal and environmental samples, recognising their interconnectedness in health systems. Such considerations are crucial to investigate the transmission of many pathogens, including drug-resistant bacteria and parasites. The highest rates of antimicrobial resistance (AMR)-associated deaths are observed in sub-Saharan Africa, where concurrently the waterborne parasitic disease schistosomiasis can be highly endemic in both humans and animals. Although there is growing acknowledgment of significant interactions between bacteria and parasites, knowledge of relationships between schistosomes, microbes and AMR remains inadequate. In addition, newly emergent research has revealed the previously underappreciated roles of animals and the environment in both AMR and schistosomiasis transmission. We consider shared environmental drivers and colonisation linkage in this narrative review, with a focus on extended-spectrum beta-lactamase-mediated resistance among bacteria from the Enterobacteriaceae family, which is exceedingly prevalent and responsible for a high burden of AMR-associated deaths. Then we examine novel findings from Malawi, where the landscapes of AMR and schistosomiasis are rapidly evolving, and make comparisons to other geographic areas with similar co-infection epidemiology. We identify several knowledge gaps that could be addressed in future research, including the need to characterise the impact of intestinal schistosomiasis and freshwater contact on intestinal AMR colonisation, before proposing a rationale for connecting AMR surveillance and schistosomiasis research within a One Health framework.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11299544/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141261169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Whesley Tanor Silva, Keity Lamary Souza Silva, Diego Mendes Xavier, Matheus Ribeiro Ávila, Lucas Frois Fernandes de Oliveira, Vittor de Moura Colicchio, Igor Lucas Geraldo Izalino de Almeida, Alessandra de Carvalho Bastone, Marcus Alessandro Alcantara, Ana Cristina Rodrigues Lacerda, Vanessa Pereira Lima, Luciano Fonseca Lemos de Oliveira, Mauro Felippe Felix Mediano, Pedro Henrique Scheidt Figueiredo, Henrique Silveira Costa
{"title":"The usefulness of patient-reported outcome measures in decision making in Chagas cardiomyopathy: a scoping review.","authors":"Whesley Tanor Silva, Keity Lamary Souza Silva, Diego Mendes Xavier, Matheus Ribeiro Ávila, Lucas Frois Fernandes de Oliveira, Vittor de Moura Colicchio, Igor Lucas Geraldo Izalino de Almeida, Alessandra de Carvalho Bastone, Marcus Alessandro Alcantara, Ana Cristina Rodrigues Lacerda, Vanessa Pereira Lima, Luciano Fonseca Lemos de Oliveira, Mauro Felippe Felix Mediano, Pedro Henrique Scheidt Figueiredo, Henrique Silveira Costa","doi":"10.1093/trstmh/trae025","DOIUrl":"10.1093/trstmh/trae025","url":null,"abstract":"<p><p>Chagas cardiomyopathy (ChC) presents many biopsychosocial complexities, highlighting the need to have patient self-report questions. This study demonstrates the scope of the use of patient-reported outcome measures (PROMs) in patients with ChC and highlights the main research gaps. This is a scoping review and the search strategy was performed in the Online Medical Literature Analysis and Retrieval System (MEDLINE), Excerpta Medica database (EMBASE), Accumulated Index of Nursing and Allied Health Literature (CINAHL), Cochrane Central, Latin American Literature and Caribbean in Health Sciences (LILACS) and Diagnostic Test Accuracy (DITA). The search identified 4484 studies and 20 studies met the inclusion criteria. The Short-Form of 36 items (SF-36) had potential prognostic value and the ability to identify systolic dysfunction. The Human Activity Profile was able to screen for functional impairment, and the New York Heart Association showed potential prognostic value. The SF-36 and Minnesota Living with Heart Failure Questionnaire were responsive to interventions. The pharmaceutical care affected adherence to treatment as assessed by the Morisky score and also for SF-36. Despite the increased use of PROMs, there are still a large number of gaps in the literature, and further studies using PROMs are needed.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877433","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":"The first insight into Mycobacterium tuberculosis complex isolates in the lower northern region in Thailand.","authors":"Janisara Rudeeaneksin, Supranee Bunchoo, Benjawan Phetsuksiri, Sopa Srisungngam, Ratchaneeporn Khummin, Jeewan Thapa, Chie Nakajima, Yasuhiko Suzuki","doi":"10.1093/trstmh/trae014","DOIUrl":"10.1093/trstmh/trae014","url":null,"abstract":"<p><strong>Background: </strong>Tuberculosis (TB) remains an important infectious disease and different genotypes have been reported. This study aimed to investigate the genetic diversity and molecular epidemiology of TB in the lower northern region of Thailand, where genotyping data are limited.</p><p><strong>Methods: </strong>A total of 159 Mycobacterium tuberculosis complex (MTBC) isolates from this region were genotyped by spoligotyping and the major spoligotypes were further subdivided by the mycobacterial interspersed repetitive unit-variable number tandem repeat (MIRU-VNTR) method.</p><p><strong>Results: </strong>Spoligotyping identified 34 types and classified them into 14 clusters. East African-Indian (EAI) groups were the most frequent (44.7%), followed by Beijing (36.5%), with a higher prevalence of drug resistance. By 15-loci MIRU-VNTR typing, the major groups of the Beijing and EAI2_NTB were further differentiated into 44 and 21 subtypes forming 9 and 5 subclusters with cluster rates of 0.26 and 0.44, respectively. The Hunter-Gaston Discriminatory Index among the Beijing and EAI2_NTB groups were 0.987 and 0.931, respectively, indicating high diversity.</p><p><strong>Conclusions: </strong>This is the first look at the MTBC genotypes in the lower northern region of Thailand, which could aid in understanding the distribution and potential spread of MTBC and Mycobacterium bovis in the target region to support TB control in Thailand.</p>","PeriodicalId":23218,"journal":{"name":"Transactions of The Royal Society of Tropical Medicine and Hygiene","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140330182","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}