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Risk of Colonization with Multidrug-Resistant Gram-Negative Bacteria Among Travellers and Migrants: A Narrative Review. 多重耐药革兰氏阴性菌在旅行者和移民中的定植风险:叙述回顾。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-18 DOI: 10.3390/tropicalmed10010026
Diogo Mendes Pedro, Daniela Santos, Maria Meneses, Fátima Gonçalves, Gonçalo Jantarada Domingos, Cátia Caneiras
{"title":"Risk of Colonization with Multidrug-Resistant Gram-Negative Bacteria Among Travellers and Migrants: A Narrative Review.","authors":"Diogo Mendes Pedro, Daniela Santos, Maria Meneses, Fátima Gonçalves, Gonçalo Jantarada Domingos, Cátia Caneiras","doi":"10.3390/tropicalmed10010026","DOIUrl":"10.3390/tropicalmed10010026","url":null,"abstract":"<p><p>Globalization in the 21st century has posed several challenges. In particular, the spread of multidrug-resistant bacterial strains, especially Gram-negative bacteria, which are prevalent in certain regions of the world, is one of the most critical issues. This raises concerns about the risks associated with the booming tourism industry and migratory flows. In fact, even transient colonization with multidrug-resistant strains can present significant challenges to individual, family, and public health. Understanding the epidemiology and mechanisms of resistance, associated risk factors and prevention policies is therefore essential to ensure that strategies are in place to limit the global spread of high-risk bacterial clones and thereby protect public health.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769174/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033898","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}
引用次数: 0
The Global Challenge of Campylobacter: Antimicrobial Resistance and Emerging Intervention Strategies. 弯曲杆菌的全球挑战:抗菌素耐药性和新兴干预策略。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-16 DOI: 10.3390/tropicalmed10010025
Zubeiru Bukari, Toyin Emmanuel, Jude Woodward, Richard Ferguson, Martha Ezughara, Nikhil Darga, Bruno Silvester Lopes
{"title":"The Global Challenge of <i>Campylobacter</i>: Antimicrobial Resistance and Emerging Intervention Strategies.","authors":"Zubeiru Bukari, Toyin Emmanuel, Jude Woodward, Richard Ferguson, Martha Ezughara, Nikhil Darga, Bruno Silvester Lopes","doi":"10.3390/tropicalmed10010025","DOIUrl":"10.3390/tropicalmed10010025","url":null,"abstract":"<p><p>Antimicrobial resistance (AMR) in <i>Campylobacter</i> species, particularly <i>C. jejuni</i> and <i>C. coli</i>, poses a significant public health threat. These bacteria, which are commonly found in livestock, poultry, companion animals, and wildlife, are the leading causes of foodborne illnesses, often transmitted through contaminated poultry. Extensive exposure to antibiotics in human and veterinary medicine creates selection pressure, driving resistance through mechanisms such as point mutations, horizontal gene transfer, and efflux pumps. Resistance to fluoroquinolones, macrolides, and tetracyclines complicates treatment and increases the risk of severe infections. Drug-resistant <i>Campylobacter</i> is transmitted to humans via contaminated food, water, and direct contact with animals, highlighting its zoonotic potential. Addressing this challenge requires effective interventions. Pre-harvest strategies like biosecurity and immune-based methods reduce bacterial loads on farms, while post-harvest measures, including carcass decontamination and freezing, limit contamination. Emerging approaches, such as bacteriocins and natural antimicrobials, offer chemical-free alternatives. Integrated, multidisciplinary interventions across the food chain are essential to mitigate AMR transmission and enhance food safety. Sustainable agricultural practices, antimicrobial stewardship, and innovative solutions are critical to curbing <i>Campylobacter</i> resistance and protecting global public health. Our review examines the dynamics of antimicrobial resistance in <i>Campylobacter</i> and presents current strategies to mitigate <i>Campylobacter</i>-related AMR, offering valuable insights for antimicrobial control in the poultry industry.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11768457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033931","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}
引用次数: 0
Biological and Social Predictors of HIV-1 RNA Viral Suppression in ART Treated PWLH in Sub-Saharan Africa. 在撒哈拉以南非洲抗逆转录病毒治疗的PWLH中HIV-1 RNA病毒抑制的生物学和社会预测因素。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-16 DOI: 10.3390/tropicalmed10010024
Sindhuri Gandla, Raja Nakka, Ruhul Ali Khan, Eliezer Bose, Musie Ghebremichael
{"title":"Biological and Social Predictors of HIV-1 RNA Viral Suppression in ART Treated PWLH in Sub-Saharan Africa.","authors":"Sindhuri Gandla, Raja Nakka, Ruhul Ali Khan, Eliezer Bose, Musie Ghebremichael","doi":"10.3390/tropicalmed10010024","DOIUrl":"10.3390/tropicalmed10010024","url":null,"abstract":"<p><p>HIV remains a significant health issue, especially in sub-Saharan Africa. There are 39 million people living with HIV (PLWH) globally. Treatment with ART improves patient outcomes by suppressing the HIV RNA viral load. However, not all patients treated with ART suppress the HIV RNA viral load. This research paper explores the potential predictors of VL suppression in ART-treated PLWH. We used retrospective data from the 4820 ART-treated participants enrolled through population-based surveys conducted in Zambia and Malawi. We applied several machine learning (ML) classifiers and used the top classifiers to identify the predictors of VL suppression. The age of participants ranged from 15 to 64 years, with a majority being females. The predictive performance of the various ML classifiers ranged from 64% to 92%. In our data from both countries, the logistic classifier was among the top classifiers and was as follows: Malawi (AUC = 0.9255) and Zambia (AUC = 0.8095). Thus, logistic regression was used to identify the predictors of viral suppression. Our findings indicated that besides ART treatment status, older age, higher CD4 T-cell count, and longer duration of ART were identified as significant predictors of viral suppression. Though not statistically significant, ART initiation 12 months or more before the survey, urban residence, and wealth index were also associated with VL suppression. Our findings indicate that HIV prevention programs in the region should integrate education on early ART initiation and adherence in PLWH.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11768424/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033640","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}
引用次数: 0
Description of the Serological Response After Treatment of Chronic Imported Schistosomiasis. 慢性输入性血吸虫病治疗后血清学反应描述。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-14 DOI: 10.3390/tropicalmed10010022
Marta González-Sanz, Irene Martín-Rubio, Oihane Martín, Alfonso Muriel, Sagrario de la Fuente-Hernanz, Clara Crespillo-Andújar, Sandra Chamorro-Tojeiro, Begoña Monge-Maíllo, Francesca F Norman, José A Pérez-Molina
{"title":"Description of the Serological Response After Treatment of Chronic Imported Schistosomiasis.","authors":"Marta González-Sanz, Irene Martín-Rubio, Oihane Martín, Alfonso Muriel, Sagrario de la Fuente-Hernanz, Clara Crespillo-Andújar, Sandra Chamorro-Tojeiro, Begoña Monge-Maíllo, Francesca F Norman, José A Pérez-Molina","doi":"10.3390/tropicalmed10010022","DOIUrl":"10.3390/tropicalmed10010022","url":null,"abstract":"<p><strong>Background: </strong>Chronic schistosomiasis can lead to significant morbidity. Serology is highly sensitive; however, its role in assessing treatment response is controversial. This study aimed to analyze serological values following treatment of chronic imported schistosomiasis.</p><p><strong>Methods: </strong>A retrospective observational study was performed including patients treated for chronic imported schistosomiasis from 2018 to 2022 who had at least one serological result at baseline and during follow-up. Demographic, clinical, and laboratory data were evaluated. Generalized estimating equation (GEE) models and Kaplan-Meier curves were used to analyze the evolution of serological values.</p><p><strong>Results: </strong>Of the 83 patients included, 72 (86.7%) were male, and the median age was 26 years (IQR 22-83). Most patients, 76 (91.6%), were migrants from sub-Saharan Africa. While 24 cases (28.9%) presented with urinary symptoms, the majority (59; 71.1%) were asymptomatic. <i>Schistosoma haematobium</i> eggs were observed in five cases (6.2%). Eosinophilia was present in 34 participants (40.9%). All patients had an initial positive <i>Schistosoma</i> ELISA serology, median ODI 2.3 (IQR 1.5-4.4); the indirect hemagglutination (IHA) test was positive/indeterminate in 34 cases (43.1%). Following treatment with praziquantel, serology values significantly decreased: -0.04 (IC95% -0.073, -0.0021) and -5.73 (IC95% -9.92, -1.53) units per month for ELISA and IHA, respectively. A quarter of patients (25%) had negative ELISA results 63 weeks after treatment. All symptomatic cases were clinically cured.</p><p><strong>Conclusions: </strong>Serial serological determinations could be helpful for monitoring chronic schistosomiasis in non-endemic regions. The ideal timing for these follow-up tests is yet to be determined. Further research is needed to determine the factors that influence a negative result during follow-up.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11768958/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033784","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}
引用次数: 0
A Comparison of the Clinical and Epidemiological Profile of Rocky Mountain Spotted Fever with Dengue and COVID-19 in Hospitalized Children, Sonora, México, 2015-2022. 云南省住院儿童落基山斑疹热与登革热、COVID-19临床及流行病学分析[j] .中华医学会杂志,2015-2022。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-14 DOI: 10.3390/tropicalmed10010020
Gerardo Álvarez-Hernández, Cristian Noé Rivera-Rosas, Jesús René Tadeo Calleja-López, Jehan Bonizú Álvarez-Meza, Maria Del Carmen Candia-Plata, Denica Cruz-Loustaunau, Antonio Alvídrez-Labrado
{"title":"A Comparison of the Clinical and Epidemiological Profile of Rocky Mountain Spotted Fever with Dengue and COVID-19 in Hospitalized Children, Sonora, México, 2015-2022.","authors":"Gerardo Álvarez-Hernández, Cristian Noé Rivera-Rosas, Jesús René Tadeo Calleja-López, Jehan Bonizú Álvarez-Meza, Maria Del Carmen Candia-Plata, Denica Cruz-Loustaunau, Antonio Alvídrez-Labrado","doi":"10.3390/tropicalmed10010020","DOIUrl":"10.3390/tropicalmed10010020","url":null,"abstract":"<p><strong>Background: </strong>Rocky Mountain spotted fever (RMSF) is a challenge for physicians because the disease can mimic other endemic febrile illnesses, such as dengue and COVID-19. The comparison of their main clinical and epidemiological manifestations in hospitalized children can help identify characteristics that improve empirical suspicion and timely therapeutic interventions.</p><p><strong>Methods: </strong>A cross-sectional study was conducted on a series of patients aged 0 to 18 years, hospitalized between 2015 and 2022, with a diagnosis of RMSF, dengue, or COVID-19. Data were retrieved from medical records. Subjects were categorized as patients with RMSF (group I) and patients with dengue and COVID-19 (group II). Descriptive statistics were used, and differences were evaluated using Student's t-test and the chi-squared test.</p><p><strong>Results: </strong>A series of 305 subjects were studied, with 252 (82.6%) in group I. Subjects in both groups presented fever, myalgias, arthralgias, and rash, but exposure to ticks distinguished group I. The fatality rate (21.0%) in group I was higher than in group II (3.8%).</p><p><strong>Conclusions: </strong>Although fever, myalgias, arthralgias, and rash are common in all three illnesses, they are more prevalent in hospitalized patients with RMSF. In the presence of such symptoms, a history of tick exposure can guide clinical decisions in regions where all three diseases are endemic.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11768868/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143034175","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}
引用次数: 0
Laboratory Comparison of Rapid Antigen Diagnostic Tests for Lymphatic Filariasis: STANDARD Q Filariasis Antigen Test (QFAT) Versus Bioline Filariasis Test Strip (FTS). 淋巴丝虫病快速抗原诊断试验的实验室比较:标准Q丝虫病抗原试验(QFAT)与生物线丝虫病试纸(FTS)。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-14 DOI: 10.3390/tropicalmed10010023
Patricia M Graves, Jessica L Scott, Alvaro Berg Soto, Antin Y N Widi, Maxine Whittaker, Colleen L Lau, Kimberly Y Won
{"title":"Laboratory Comparison of Rapid Antigen Diagnostic Tests for Lymphatic Filariasis: STANDARD Q Filariasis Antigen Test (QFAT) Versus Bioline Filariasis Test Strip (FTS).","authors":"Patricia M Graves, Jessica L Scott, Alvaro Berg Soto, Antin Y N Widi, Maxine Whittaker, Colleen L Lau, Kimberly Y Won","doi":"10.3390/tropicalmed10010023","DOIUrl":"10.3390/tropicalmed10010023","url":null,"abstract":"<p><p>Accurate rapid diagnostic tests (RDTs) are needed to diagnose lymphatic filariasis (LF) in global elimination programmes. We evaluated the performance of the new STANDARD Q Filariasis Antigen Test (QFAT) against the Bioline Filariasis Test Strip (FTS) for detecting <i>W. bancrofti</i> antigen (Ag) in laboratory conditions, using serum (n = 195) and plasma (n = 189) from LF-endemic areas (Samoa, American Samoa and Myanmar) and Australian negative controls (n = 46). The prior Ag status of endemic samples (54.9% Ag-positive) was determined by rapid test (ICT or FTS) or Og4C3 ELISA. The proportion of samples testing positive at 10 min was similar for QFAT (44.8%) and FTS (41.3%). Concordance between tests was 93.5% (kappa 0.87, n = 417) at 10 min, and it increased to 98.8% (kappa 0.98) at 24 h. The sensitivities of QFAT and FTS at 10 min compared to the prior results were 92% (95% CI 88.0-96.0) and 86% (95% CI 80.0-90.0), respectively, and they increased to 97% and 99% at 24 h. Specificity was 98% for QFAT and 99% for FTS at 10 min. Both tests showed evidence of cross-reaction with <i>Dirofilaria repens</i> and <i>Onchocerca lupi</i> but not with <i>Acanthochilonema reconditum</i> or <i>Cercopithifilaria bainae.</i> Under laboratory conditions, QFAT is a suitable alternative RDT to FTS.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11768758/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033894","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}
引用次数: 0
Acute Febrile Illness Accompanied by 7th and 12th Cranial Nerve Palsy Due to Lyme Disease Following Travel to Rural Ecuador: A Case Report and Mini-Review. 厄瓜多尔农村地区莱姆病引起的急性发热性疾病伴7、12号脑神经麻痹1例报告及综述
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-14 DOI: 10.3390/tropicalmed10010021
Teslin S Sandstrom, Kumudhavalli Kavanoor Sridhar, Judith Joshi, Ali Aunas, Sheliza Halani, Andrea K Boggild
{"title":"Acute Febrile Illness Accompanied by 7th and 12th Cranial Nerve Palsy Due to Lyme Disease Following Travel to Rural Ecuador: A Case Report and Mini-Review.","authors":"Teslin S Sandstrom, Kumudhavalli Kavanoor Sridhar, Judith Joshi, Ali Aunas, Sheliza Halani, Andrea K Boggild","doi":"10.3390/tropicalmed10010021","DOIUrl":"10.3390/tropicalmed10010021","url":null,"abstract":"<p><p>The causative agent of Lyme disease, <i>Borrelia burgdorferi</i>, is endemic to Canada, the northeastern United States, northern California, and temperate European regions. It is rarely associated with a travel-related exposure. In this report, we describe a resident of southern Ontario, Canada who developed rash, fever, and cranial nerve VII and XII palsies following a 12 day trip to Ecuador and the Galapagos islands approximately four weeks prior to referral to our center. Comprehensive microbiological work-up was notable for reactive <i>Borrelia burgdorferi</i> serology by modified two-tier testing (MTTT), confirming a diagnosis of Lyme disease. This case highlights important teaching points, including the classic clinical presentation of acute Lyme disease with compatible exposure pre-travel in a Lyme-endemic region of Ontario, initial manifestations during travel following acquisition of arthropod bites in Ecuador, and more severe manifestations post-travel. Given the travel history to a South American country in which Lyme disease is exceedingly uncommon, consideration of infections acquired in Ecuador necessitated a broad differential diagnosis and more comprehensive microbiological testing than would have been required in the absence of tropical travel. Additionally, cranial nerve XII involvement is an uncommon feature of Lyme neuroborreliosis, and therefore warranted consideration of an alternative, non-infectious etiology such as stroke or a mass lesion, both of which were excluded in this patient through neuroimaging.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769472/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033002","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}
引用次数: 0
Integrated Serosurveillance of Infectious Diseases Using Multiplex Bead Assays: A Systematic Review. 使用多重头部检测的传染病综合血清监测:系统综述。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-10 DOI: 10.3390/tropicalmed10010019
Selina Ward, Harriet L S Lawford, Benn Sartorius, Colleen L Lau
{"title":"Integrated Serosurveillance of Infectious Diseases Using Multiplex Bead Assays: A Systematic Review.","authors":"Selina Ward, Harriet L S Lawford, Benn Sartorius, Colleen L Lau","doi":"10.3390/tropicalmed10010019","DOIUrl":"10.3390/tropicalmed10010019","url":null,"abstract":"<p><p>Integrated serological surveillance (serosurveillance) involves testing for antibodies to multiple pathogens (or species) simultaneously and can be achieved using multiplex bead assays (MBAs). This systematic review aims to describe pathogens studied using MBAs, the operational implementation of MBAs, and how the data generated were synthesised. In November and December 2023, four databases were searched for studies utilising MBAs for the integrated serosurveillance of infectious diseases. Two reviewers independently screened and extracted data regarding the study settings and population, methodology, seroprevalence results, and operational implementation elements. Overall, 4765 studies were identified; 47 were eligible for inclusion, of which 41% (<i>n</i> = 19) investigated multiple malaria species, and 14% performed concurrent surveillance of malaria in combination with other infectious diseases (<i>n</i> = 14). Additionally, 14 studies (29%) investigated a combination of multiple infectious diseases (other than malaria), and seven studies examined a combination of vaccine-preventable diseases. Haiti (<i>n</i> = 8) was the most studied country, followed by Ethiopia (<i>n</i> = 6), Bangladesh (<i>n</i> = 3), Kenya (<i>n</i> = 3), and Tanzania (<i>n</i> = 3). Only seven studies were found where integrated serosurveillance was the primary objective. The synthesis of data varied and included the investigation of age-specific seroprevalence (<i>n</i> = 25), risk factor analysis (<i>n</i> = 15), and spatial analysis of disease prevalence (<i>n</i> = 8). This review demonstrated that the use of MBAs for integrated surveillance of multiple pathogens is gaining traction; however, more research and capabilities in lower- and middle-income countries are needed to optimise and standardise sample collection, survey implementation, and the analysis and interpretation of results. Geographical and population seroprevalence data can enable targeted public health interventions, highlighting the potential and importance of integrated serological surveillance as a public health tool.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033893","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}
引用次数: 0
Serious Bacterial Infections and Hepatitis C Virus Among People Who Inject Drugs: A Syndemic or Intertwined Epidemics? 注射吸毒者中的严重细菌感染和丙型肝炎病毒:是一种综合流行病还是相互交织的流行病?
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-09 DOI: 10.3390/tropicalmed10010017
Thomas J Stopka, Robin M Nance, L Sarah Mixson, Hunter Spencer, Judith I Tsui, Judith M Leahy, Mai T Pho, Jean DeJace, Judith Feinberg, April M Young, Wei-Teng Yang, Amelia Baltes, Eric Romo, Randall T Brown, Kerry Nolte, William C Miller, William A Zule, Wiley D Jenkins, Joseph A Delaney, Peter D Friedmann
{"title":"Serious Bacterial Infections and Hepatitis C Virus Among People Who Inject Drugs: A Syndemic or Intertwined Epidemics?","authors":"Thomas J Stopka, Robin M Nance, L Sarah Mixson, Hunter Spencer, Judith I Tsui, Judith M Leahy, Mai T Pho, Jean DeJace, Judith Feinberg, April M Young, Wei-Teng Yang, Amelia Baltes, Eric Romo, Randall T Brown, Kerry Nolte, William C Miller, William A Zule, Wiley D Jenkins, Joseph A Delaney, Peter D Friedmann","doi":"10.3390/tropicalmed10010017","DOIUrl":"10.3390/tropicalmed10010017","url":null,"abstract":"<p><p>Limited research has examined the possible synergistic interrelationships between serious bacterial infections (SBIs) of the heart (i.e., endocarditis), bone, spine, brain, or joints (e.g., osteomylelitis) and hepatitis C virus (HCV) infections. We examined whether syndemic interactions existed between SBI, HCV, and substance-use-related factors in rural communities, hypothesizing that injection-mediated risks elevated the likelihood for both SBIs and HCV infections, which could be exacerbated by synergistic biological-biological or biological and social interactions. We calculated the prevalence ratios (PRs) of past-year SBI associated with each risk factor in separate models. Effect modification among significant risk factors was assessed using multiplicative interaction. Among 1936 participants, 57% were male and 85% White, with a mean age of 36 years. Eighty-nine participants (5%) reported hospitalization for an SBI in the year prior to the survey. More than half tested HCV-antibody-positive (58%); 62 (5.6%) of the participants with a positive HCV antibody result reported past-year hospitalization with an SBI. Injection behaviors were correlated with other SBI risk factors, including multiple injections in the same injection event (MIPIE), injection equipment sharing, and fentanyl use. In adjusted models, MIPIE (PR: 1.79; 95% confidence interval [CI]: 1.03, 3.11) and fentanyl use (PR: 1.68; 95% CI: 1.04, 2.73) were significantly associated with past-year SBI. Our analyses pointed to co-occurring epidemics of SBI and HCV, related to the cumulative health effects of fentanyl use contributing to frequent injections and MIPIE. Both the SBI and HCV epidemics present public health challenges and merit tailored interventions.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769247/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033908","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}
引用次数: 0
Serological Profile of Anti-Toxoplasma gondii Antibodies in Liver Transplant Recipients. 肝移植受者抗刚地弓形虫抗体血清学分析。
IF 2.8 4区 医学
Tropical Medicine and Infectious Disease Pub Date : 2025-01-09 DOI: 10.3390/tropicalmed10010018
Gabriella Beltrame Pintos, Francielly Camilla Bazílio Laurindo Pires, Nathália Zini, Rita Cássia Martins Alves da Silva, Francisco Inaldo Mendes Silva Junior, Renato Ferreira da Silva, Tainara Souza Pinho, Luiz Carlos de Mattos, Cinara Cássia Brandão
{"title":"Serological Profile of Anti-<i>Toxoplasma gondii</i> Antibodies in Liver Transplant Recipients.","authors":"Gabriella Beltrame Pintos, Francielly Camilla Bazílio Laurindo Pires, Nathália Zini, Rita Cássia Martins Alves da Silva, Francisco Inaldo Mendes Silva Junior, Renato Ferreira da Silva, Tainara Souza Pinho, Luiz Carlos de Mattos, Cinara Cássia Brandão","doi":"10.3390/tropicalmed10010018","DOIUrl":"10.3390/tropicalmed10010018","url":null,"abstract":"<p><p><i>Toxoplasma gondii (T. gondii)</i>, a globally distributed obligatory intracellular opportunistic parasite that has infected one third of the world population, has different transmission routes including via organ transplantation. The liver has emerged as a frequent transplanted organ in which the transmission of <i>T. gondii</i> can occur between seropositive donors and seronegative recipients. Allied with immunosuppressive therapy, the presence of latent infection in recipients elevates the risk of severe toxoplasmosis. The goal of this study was to evaluate the demographic, clinical, epidemiological, and anti-<i>T. gondii</i> antibody profiles in liver transplant recipients. All demographic, clinical, epidemiological, and serological data were obtained from the electronic medical records of liver transplant recipients from the Liver Transplantation Service of the Hospital de Base in São José do Rio Preto, Brazil, from 2008 to 2018. Data from 48 eligible recipients (females: n = 17; males: n = 31) were evaluated. The recipients were grouped according to their <i>T. gondii</i> serological profiles (G1: IgM-/IgG-; G2: IgM-/IgG+; G3: IgM+/IgG+; G4: IgM+/IgG-). The overall mean age was 55.3 (±15.3) years; the age difference between women (42.7 ± 17 years) and men (62.2 ± 10.9 years) was statistically significant (<i>p</i>-value > 0.0001). The percentages of the serological profiles were 20 (n = 41.7%), 26 (n = 54.1%), and 2 (n = 4.2%) for G1, G2, and G3, respectively. No recipient had a serological profile for G4. Hepatosplenomegaly (47.9%), fever (35.4%), encephalopathy (20.8%), and headache (16.7%) were commonly observed symptoms. No statistically significant differences were observed between the serological group and clinical data (<i>p</i>-value = 0.953). The percentages of coinfection by <i>T. gondii</i> with hepatitis A, B, and C were 47.9%, 20.8%, and 12.5%, respectively. About 41.7% of the recipients later died. The data demonstrate that infection by <i>T. gondii</i> is common in liver transplant recipients, and it is not associated with the analyzed demographic, clinical, and epidemiological data.</p>","PeriodicalId":23330,"journal":{"name":"Tropical Medicine and Infectious Disease","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769296/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143033917","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}
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