Journal of Infection最新文献_第9页

Bacteriophage combined with mNGS enhances the specificity of bacterial infection diagnosis 噬菌体联合mNGS可提高细菌感染诊断的特异性。

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-10-01 DOI: 10.1016/j.jinf.2025.106618

Ying Liu , Yafeng Zheng , Lu Wang , Yuxin Guo , Guangyun Huang , Zhiyong Yuan , Fuhua Wang , Wei Gai , Jinyan Xing

Introduction

Metagenomic next-generation sequencing (mNGS) is an important tool for enhancing pathogen detection in infected patients. However, distinguishing between specimens that are infected or colonized is still a major challenge.

Objectives

To explore the composition of bacteriophages in the blood and respiratory tract of the human body, the association between bacteriophage detection and bacterial infections, and whether bacteriophages can assist in differentiating infectious pathogens according to mNGS results.

Methods

Clinical samples from hospitalized patients were collected between January 2023 and February 2024. DNA and cell-free DNA were extracted from BALF and plasma retrospectively to identify the pathogens present, and bacteriophage annotations were conducted.

Results

A total of 299 samples, comprising 136 blood samples and 163 BALF samples, were obtained from 218 patients. Compared with the samples negative for bacteria, both blood and bronchoalveolar lavage fluid (BALF) samples infected with Acinetobacter baumannii, Klebsiella pneumoniae, Pseudomonas aeruginosa, and S. aureus showed a corresponding increase in the proportions of phages related to these pathogens. In BALF samples with Acinetobacter baumannii infection, the proportions of Autographiviridae, Siphoviridae, and Myoviridae were significantly greater than those in the Acinetobacter baumannii colonization group. The sensitivity of Myoviridae for differentiating between infection and colonization was 86.36%, and the specificity was 52.94%.

Conclusion

In sepsis, compared with conventional mNGS methods alone, the use of bacteriophages combined with mNGS was more effective in identifying causative pathogens and had higher specificity. These findings may provide new ideas and tools for improving clinical infection diagnosis.

新一代宏基因组测序（mNGS）是加强感染患者病原体检测的重要工具。然而，区分感染或定植的标本仍然是一项重大挑战。目的：探讨人体血液和呼吸道中噬菌体的组成，噬菌体检测与细菌感染的关系，以及根据mNGS结果，噬菌体是否能协助鉴别感染性病原体。方法：收集2023年1月至2024年2月住院患者的临床样本。从BALF和血浆中回顾性提取DNA和游离DNA，鉴定存在的病原体，并进行噬菌体注释。结果：218例患者共获得299份样本，其中血液样本136份，BALF样本163份。与细菌阴性的样本相比，感染鲍曼不动杆菌、肺炎克雷伯菌、铜绿假单胞菌和金黄色葡萄球菌的血液和支气管肺泡灌洗液（BALF）样本显示，与这些病原体相关的噬菌体比例相应增加。在鲍曼不动杆菌感染的BALF样本中，自噬病毒科、虹膜病毒科和肌病毒科的比例显著高于鲍曼不动杆菌定殖组。肌病毒科区分感染与定植的敏感性为86.36%，特异性为52.94%。结论：在脓毒症中，与单独使用常规mNGS方法相比，噬菌体联合mNGS方法对病原菌的识别更有效，特异性更高。这些发现可能为提高临床感染诊断水平提供新的思路和工具。

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引用次数: 0

Prevalence and impact of SARS-CoV-2, influenza, respiratory syncytial virus (RSV) infection and respiratory illness on UK healthcare workers during winter 2023/24 (September 2023 to March 2024): SIREN cohort study 2023/24冬季（2023年9月至2024年3月）英国医护人员SARS-CoV-2、流感、呼吸道合胞病毒（RSV）感染和呼吸道疾病的流行及其影响：SIREN队列研究

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-10-01 DOI: 10.1016/j.jinf.2025.106620

Sarah Foulkes , Katie Munro , Dominic Sparkes , Jameel Khawam , Sophie Russell , Angela Dunne , Jean Timeyin , Nipunadi Hettiarachchi , Michelle Cairns , Declan T. Bradley , Elen De Lacy , Kevin Wilson , Nick Andrews , Andre Charlett , Respiratory Virus and Microbiome Initiative (RVI) team , Katie Bellis , Ya-Lin Huang , Matthew Forbes , Andrea Frick-Kretschmer , Marissa Knoll , Victoria Hall

Background

During the winter, healthcare systems experience additional pressures due to increases in respiratory infections and staff absence. We aimed to determine the prevalence of respiratory viruses and impact on sickness absence in the SIREN healthcare worker (HCW) cohort during winter 2023/24.

Methods

SIREN is a cohort study with linked testing, vaccination, demographic, symptoms and sick leave data. Participants undergo fortnightly multiplex PCR testing for SARS-CoV-2, influenza and RSV, regardless of symptoms. The proportion of participants who took sick leave, the total number and median of sick leave days taken was calculated, overall and stratified by viral infection and vaccination status. Logistic regression was used to estimate the association between sick leave and vaccination status.

Results

A total of 5287 participants were included, 78·3% female, median age 54 years. There were 1828 infections (1161 SARS-CoV-2; 387 RSV; 280 influenza infections) among 1659 participants. Influenza and RSV peaked in December (1·2%; 1·9%), SARS-CoV-2 peaked in September and December 2023 (4·0%; 4·3%).

Regardless of a known infection, 35.8% (1892/5287) took sick leave, resulting in 10,168 days (median 5 days per person; range 1–98 days).

Discussion

Respiratory illness caused a substantial burden on the SIREN healthcare workforce over winter, with all three viruses contributing. Reduced number of staff at work and pressures to work through illness have implications for healthcare resilience.

背景：在冬季，由于呼吸道感染和工作人员缺勤的增加，卫生保健系统面临额外的压力。我们的目的是确定2023/24年冬季SIREN医护人员（HCW）队列中呼吸道病毒的流行率及其对缺勤的影响。方法：SIREN是一项队列研究，包括相关的检测、疫苗接种、人口统计学、症状和病假数据。无论症状如何，参与者每两周接受一次SARS-CoV-2、流感和RSV多重PCR检测。根据病毒感染和疫苗接种状况，计算了请病假的参与者的比例、病假天数的总数和中位数。使用Logistic回归来估计病假与疫苗接种状况之间的关联。结果：纳入5287例受试者，女性78.3%，中位年龄54岁。在1,659名参与者中，有1,828例感染（1,161例SARS-CoV-2； 387例RSV； 280例流感感染）。流感和RSV高峰在12月（1.2%;1.9%），SARS-CoV-2高峰在9月和12月（4.0%;4.3%）。无论是否有已知感染，35.8%（1892 / 5287）的人请了病假，总共请了10168天病假（平均每人5天，范围1-98天）。讨论：呼吸系统疾病在冬季给SIREN医护人员造成了沉重的负担，这三种病毒都起到了作用。工作人员数量的减少和带病工作的压力对医疗弹性有影响。资助：英国卫生安全局、英国卫生和社会保障部，北爱尔兰、威尔士和苏格兰政府提供资助，并提供惠康基金参考。

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引用次数: 0

Level III public health emergency response to a chikungunya outbreak in Jiangmen, China 中国江门基孔肯雅热暴发III级突发公共卫生事件应对措施

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-10-01 DOI: 10.1016/j.jinf.2025.106622

Liyan Zhou, Chenyuan Qin, Jue Liu

引用次数: 0

Detection of pulmonary tuberculosis and drug resistance in sputum samples using targeted next-generation sequencing 利用靶向下一代测序技术检测痰样本中的肺结核和耐药性。

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-10-01 DOI: 10.1016/j.jinf.2025.106621

Chang Song , Chun-Yan Zhao , Hang-Biao Qiang , Xue-Wen Huang, Ai-Chun Huang, Chun-Mei Zeng, Chun-Ming Gong, Qiu-Qing Tan, Zhen-Tao Huang, Xiao-Shi Lin, Qing-Dong Zhu, Zhou-Hua Xie

引用次数: 0

Corrigendum to “Humoral and T-cell responses following MVA-BN booster vaccination against mpox virus clades Ib and IIb” [J Infect 91 (2025) 106602] “MVA-BN加强疫苗接种后对m痘病毒分支Ib和IIb的体液和t细胞反应”的更正[J] .传染病杂志91(2025)106602。

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-10-01 DOI: 10.1016/j.jinf.2025.106631

Valentina Mazzotta , Giulia Matusali , Eleonora Cimini , Alessandro Caioli , Rozenn Esvan , Francesca Colavita , Eleonora Tartaglia , Jessica Paulicelli , Giulia Micheli , Aurora Bettini , Stefania Notari , Alessandro Giacinta , Licia Bordi , Simona Gili , Andrea Siddu , Enrico Girardi , Fabrizio Maggi , Andrea Antinori

引用次数: 0

A systematic review of asymptomatic colonisation with Group A Streptococcus in lower- and middle-income countries 中低收入国家A群链球菌无症状定植的系统综述

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-09-18 DOI: 10.1016/j.jinf.2025.106615

Hermaleigh Townsley, Thomas E. Locke, Nicholas Laundy, Christopher Keil, Alexander J. Keeley, Jean Hamilton, Abdullah Pandor, Thomas C. Darton, Thushan I. de Silva

引用次数: 0

Single cell sequencing analysis of respiratory syncytial virus–infected pediatric and adult human nose organoids reveals age differences, proliferative diversity and identifies novel cellular tropism 呼吸道合胞病毒感染儿童和成人鼻类器官的单细胞测序分析揭示了年龄差异、增殖多样性并确定了新的细胞趋向性。

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-09-18 DOI: 10.1016/j.jinf.2025.106617

Anubama Rajan , Divya Nagaraj , Carolyn Bomidi , Gina M. Aloisio , Ashley M. Murray , Emily M. Schultz , Amal Kambal , Mary K. Estes , Erin Nicholson , Vasanthi Avadhanula , Sarah E. Blutt , Pedro A. Piedra

Respiratory syncytial virus (RSV) is a leading cause of infant death across the globe. Age is a significant factor that contributes to the severity of infection in young children. RSV primarily infects the ciliated cells of the airway epithelium, induces mucus hypersecretion, and impaired mucociliary clearance. Better understanding of RSV infection at the cellular level is needed for the development of effective therapeutic interventions. To investigate the age difference and comprehensively understand gene signatures associated with RSV infection, we performed single-cell transcriptomic analysis of adult and pediatric human nose organoids (HNOs) infected with RSV. Our analysis revealed a significant difference in transcriptomic signature associated with cellular differentiation and proliferative pathways between the adult and pediatric HNOs. Moreover, we found a distinct innate immune response to RSV infection, with pediatric HNO revealing a lower and dysregulated response. Through sub-clustering analysis of the ciliated cell population, we identified the primary ciliary cell as a novel and prominent susceptible ciliary cell type to RSV infection. Intriguingly and unexpectedly, we found that in the pediatric more than in the adult, HNO RSV infects other novel airway cells, including basal cells, and ionocytes/tuft cells, as demonstrated by increased RSV-gene counts and induction of interferon-related pathways. Together, our study provides the first HNO cell atlas dissecting the heterogeneity of RSV infection in airway epithelium between adult versus pediatric HNOs and identifies novel cell types that are susceptible to RSV infection, which altogether provides a key resource for research on RSV pathogenesis, therapeutics and vaccines.

呼吸道合胞病毒（RSV）是全球婴儿死亡的主要原因。年龄是影响幼儿感染严重程度的一个重要因素。RSV主要感染气道上皮纤毛细胞，诱导粘液分泌过多，损害纤毛黏液清除。为了开发有效的治疗干预措施，需要在细胞水平上更好地了解RSV感染。为了研究年龄差异并全面了解与RSV感染相关的基因特征，我们对感染RSV的成人和儿童人鼻类器官（HNOs）进行了单细胞转录组学分析。我们的分析揭示了成人和儿童HNOs在细胞分化和增殖途径相关的转录组特征上的显著差异。此外，我们发现对RSV感染有明显的先天免疫反应，儿童HNO反应较低且失调。通过对纤毛细胞群的亚聚类分析，我们确定了原代纤毛细胞是一种新的、突出的易感染RSV的纤毛细胞类型。有趣且出乎意料的是，我们发现在儿童中，与成人相比，HNO RSV感染其他新型气道细胞，包括基底细胞和离子细胞/簇状细胞，这可以通过RSV基因计数增加和干扰素相关途径的诱导来证明。总之，我们的研究提供了第一个HNO细胞图谱，揭示了成人和儿童HNO在呼吸道上皮中RSV感染的异质性，并鉴定了对RSV感染易感的新细胞类型，这为RSV发病机制、治疗方法和疫苗的研究提供了关键资源。

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引用次数: 0

Small-RNA sequencing identifies serum microRNAs associated with abnormal electrocardiography findings in patients with Chagas disease 小rna测序确定了与恰加斯病患者异常心电图结果相关的血清微小rna。

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-09-12 DOI: 10.1016/j.jinf.2025.106613

Michael Mueller , Alice Blandino , Dominique Scherer , Inés Zulantay , Werner Apt , Nelson M. Varela , Marcelo Llancaqueo , Lineth Garcia , Lourdes Ortiz , Emanuele Nicastri , Maria Letizia Giancola , Andrea Angheben , Simona Gabrielli , Trine B. Rounge , Hilde Langseth , Melanie Waldenberger , Pamela Salinas-Alvarez , Justo Lorenzo Bermejo

Background

Chagas disease, caused by the parasite Trypanosoma cruzi (T. cruzi), affects around 6–7 million people in Latin America and hundreds of thousands in the United States and Europe. A main complication of chronic Chagas disease is cardiomyopathy, possibly manifesting as arrhythmias, heart failure, or sudden cardiac death. Understanding the link between T. cruzi infection and cardiomyopathy is essential for early diagnosis and adequate treatment.

Methods

We sequenced small RNAs in serum samples from 228 Chagas patients recruited in Chile, Bolivia and Italy. After bioinformatic processing of sequencing data to quantify serum miRNA expression, robust logistic regression was applied to identify miRNAs differentially expressed in Chagas patients with abnormalities in electrocardiography (ECG), bundle-branch block on ECG, and high Kuschnir scores. We also investigated the association between genotype-based miRNA expression and the risk of abnormal ECG findings.

Findings

As reported, the risk of abnormal ECG findings was higher in male patients and increased with age. Three miRNAs showed lower serum expression levels in patients with abnormal ECG: miRNA-101-3p, miRNA-576-3p and miRNA-629-5p (p < 0.0002), especially in patients with high Kuschnir scores. The expression of miRNA-629-5p was negatively correlated with the CCL5 expression (p = 3.7×10^-8), a chemokine frequently reported in Chagas disease. Gene enrichment analyses indicated involvement of cytokine signalling in Chagas cardiomyopathy.

Interpretation

The findings demonstrate the potential of circulating miRNAs as diagnostic biomarkers for Chagas cardiomyopathy. The associations found with disease severity and immune response may help to improve our knowledge of complications’ development in Chagas disease.

背景：由克氏锥虫（T. cruzi）寄生虫引起的恰加斯病影响了拉丁美洲约600 - 700万人以及美国和欧洲数十万人。慢性恰加斯病的主要并发症是心肌病，可能表现为心律失常、心力衰竭或心源性猝死。了解克氏锥虫感染与心肌病之间的联系对于早期诊断和适当治疗至关重要。方法：我们对来自智利、玻利维亚和意大利的228名恰加斯病患者的血清样本中的小rna进行了测序。在对测序数据进行生物信息学处理以量化血清miRNA表达后，应用稳健逻辑回归识别心电图异常、心电图束支阻滞和高Kuschnir评分的Chagas患者的miRNA差异表达。我们还研究了基于基因型的miRNA表达与ECG异常风险之间的关系。结果：据报道，男性患者出现异常心电图的风险更高，并且随着年龄的增长而增加。在ECG异常患者中，miRNA-101-3p、miRNA-576-3p和miRNA-629-5p的血清表达水平较低（p < 0.0002），尤其是在Kuschnir评分高的患者中。miRNA-629-5p的表达与CCL5的表达呈负相关（p = 3.7×10-8）， CCL5是恰加斯病中经常报道的一种趋化因子，基因富集分析表明细胞因子信号通路参与恰加斯心肌病。解释：这些发现证明了循环mirna作为恰加斯心肌病诊断生物标志物的潜力。发现与疾病严重程度和免疫反应的关联可能有助于提高我们对恰加斯病并发症发展的认识。

{"title":"Small-RNA sequencing identifies serum microRNAs associated with abnormal electrocardiography findings in patients with Chagas disease","authors":"Michael Mueller , Alice Blandino , Dominique Scherer , Inés Zulantay , Werner Apt , Nelson M. Varela , Marcelo Llancaqueo , Lineth Garcia , Lourdes Ortiz , Emanuele Nicastri , Maria Letizia Giancola , Andrea Angheben , Simona Gabrielli , Trine B. Rounge , Hilde Langseth , Melanie Waldenberger , Pamela Salinas-Alvarez , Justo Lorenzo Bermejo","doi":"10.1016/j.jinf.2025.106613","DOIUrl":"10.1016/j.jinf.2025.106613","url":null,"abstract":"<div><h3>Background</h3><div>Chagas disease, caused by the parasite <em>Trypanosoma cruzi</em> (<em>T. cruzi</em>), affects around 6–7 million people in Latin America and hundreds of thousands in the United States and Europe. A main complication of chronic Chagas disease is cardiomyopathy, possibly manifesting as arrhythmias, heart failure, or sudden cardiac death. Understanding the link between <em>T. cruzi</em> infection and cardiomyopathy is essential for early diagnosis and adequate treatment.</div></div><div><h3>Methods</h3><div>We sequenced small RNAs in serum samples from 228 Chagas patients recruited in Chile, Bolivia and Italy. After bioinformatic processing of sequencing data to quantify serum miRNA expression, robust logistic regression was applied to identify miRNAs differentially expressed in Chagas patients with abnormalities in electrocardiography (ECG), bundle-branch block on ECG, and high Kuschnir scores. We also investigated the association between genotype-based miRNA expression and the risk of abnormal ECG findings.</div></div><div><h3>Findings</h3><div>As reported, the risk of abnormal ECG findings was higher in male patients and increased with age. Three miRNAs showed lower serum expression levels in patients with abnormal ECG: miRNA-101-3p, miRNA-576-3p and miRNA-629-5p (p < 0.0002), especially in patients with high Kuschnir scores. The expression of miRNA-629-5p was negatively correlated with the <em>CCL5</em> expression (p = 3.7×10<sup>-8</sup>), a chemokine frequently reported in Chagas disease. Gene enrichment analyses indicated involvement of cytokine signalling in Chagas cardiomyopathy.</div></div><div><h3>Interpretation</h3><div>The findings demonstrate the potential of circulating miRNAs as diagnostic biomarkers for Chagas cardiomyopathy. The associations found with disease severity and immune response may help to improve our knowledge of complications’ development in Chagas disease.</div></div>","PeriodicalId":50180,"journal":{"name":"Journal of Infection","volume":"91 4","pages":"Article 106613"},"PeriodicalIF":11.9,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145066416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-term physical capacity following COVID-19: A prospective, three-year study COVID-19后的长期身体能力：一项为期三年的前瞻性研究

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-09-12 DOI: 10.1016/j.jinf.2025.106614

Christoffer Granvik , Ida-Lisa Persson , Guilherme W.F. Barros , Clas Ahlm , Mattias N.E. Forsell , Staffan Tevell , Josefin Sundh , Anders Blomberg , Alicia Lind , Sara Cajander , Johan Normark

Objectives

COVID-19 impacts physical and respiratory health, and the clinical presentation ranges from asymptomatic cases to severe infections requiring hospitalisation. While the long-term effects on lung function and physical capacity are well-documented in moderate to severe cases, the long-term outcome for individuals with mild COVID-19 remains poorly understood. This study investigates the long-term recovery of physical capacity and breathlessness among both hospitalised and non-hospitalised individuals.

Methods

This prospective cohort study enrolled individuals with confirmed SARS-CoV-2 infection between April 2020 and May 2021 through the CoVUm-study. Participants underwent assessments of lung function at 3–6 months after infection and attended follow-ups up to three years post-infection. Physical capacity was evaluated at follow-ups, using the one-minute sit-to-stand test and the modified Medical Research Council scale to assess breathlessness.

Results

The cohort included 291 participants, 35% of whom were hospitalised during SARS-CoV-2 infection. At the 3-year follow-up, 191 participants completed the physical capacity test and 179 had an assessment of breathlessness. Physical capacity improved significantly in the total cohort up to two years post-infection, where improvement plateaued. Hospitalisation and impaired diffusing capacity were significantly associated with reduced physical capacity (beta –6.4, p < 0.001; beta –8.9, p < 0.001, respectively) and breathlessness (beta 3.9, p < 0.001; beta 1.6, p = 0.012, respectively). While non-hospitalised participants demonstrated improvements in physical capacity for up to two years, improvement for hospitalised individuals plateaued by six months.

Conclusion

Hospitalisation and impaired diffusing capacity are strong independent predictors of reduced physical capacity and persistent breathlessness up to three years post-infection. Non-hospitalised individuals also experience long-term reductions in physical capacity, underscoring the need for targeted rehabilitation strategies.

目的：COVID-19影响身体和呼吸系统健康，临床表现从无症状病例到需要住院治疗的严重感染不等。虽然中度至重度病例对肺功能和体能的长期影响已有充分记录，但对轻度COVID-19患者的长期后果仍知之甚少。本研究调查住院和非住院个体的体能和呼吸困难的长期恢复情况。方法：本前瞻性队列研究通过covum研究招募了2020年4月至2021年5月期间确诊的SARS-CoV-2感染的个体。参与者在感染后3-6个月接受肺功能评估，并在感染后随访3年。在随访中评估身体能力，使用一分钟坐立测试和修改后的医学研究委员会量表来评估呼吸困难。结果：该队列包括291名参与者，其中35%在SARS-CoV-2感染期间住院。在3年的随访中，191名参与者完成了体能测试，179名参与者进行了呼吸困难评估。在整个队列中，身体能力在感染后两年内显著改善，改善趋于稳定。住院治疗和弥散能力受损与身体能力下降（β -6.4, p < 0.001; β -8.9, p < 0.001）和呼吸困难（β 3.9, p < 0.001; β 1.6, p = 0.012）显著相关。虽然未住院的参与者在长达两年的时间里表现出身体能力的改善，但住院个体的改善在六个月后停滞不前。结论：住院治疗和弥散能力受损是感染后3年内身体能力下降和持续呼吸困难的独立预测因素。未住院的个人也会经历身体能力的长期下降，这突出了有针对性的康复战略的必要性。

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引用次数: 0

Prevalence and bio-clinical characterisation of Trichomonas vaginalis infection in a large cohort of French patients screened using a molecular syndromic panel for sexually transmitted infections 阴道毛滴虫感染的流行和生物临床特征在法国的一大队列患者筛选使用分子综合征面板为性传播感染。

IF 11.9 1区医学 Q1 INFECTIOUS DISEASES

Journal of Infection

Pub Date : 2025-09-03 DOI: 10.1016/j.jinf.2025.106610

Lya Hamet , Florence Robert-Gangneux , Clément Cazala , Gabriel Auger , Jean-Pierre Gangneux

Objectives

The aim of this work was to study the epidemiology of urogenital trichomoniasis in the setting of systematic screening of STIs, using a multiplex molecular assay. Besides, the specificity for T. vaginalis detection of the syndromic panel was assessed comparatively to an in-house PCR.

Methods

41,507 samples sent for STI screening between 2020 and 2024 were analysed using the Allplex® STI Essential molecular panel targeting T. vaginalis, C. trachomatis, N. gonorrhoeae, M. genitalium, M. hominis, Ureaplasma parvum, and U. urealyticum. Remaining samples positive for T. vaginalis were stored for confirmation using a simplex in-house qPCR assay targeting the beta-tubulin gene.

Results

337 (0.8%) samples (282 patients; 0.93%) were positive for T. vaginalis. The highest rate of positivity was observed in patients aged between 20 and 24 (1.6%), whereas the number of cases over 45 years was anecdotal (0.4%). Prevalence was ten times lower in men than in women. Twenty-four percent were co-infected with at least one pathogen, i.e., C. trachomatis (n=17%) and/or M. genitalium (9.2%) and/or N. gonorrhoeae (3.6%). More than half patients positive for T. vaginalis were asymptomatic, of whom 88% were treated. Symptomatic patients presented mostly with abnormal leucorrhea, pruritus and/or dysuria. Amplification of 160 samples by simplex PCRs showed an excellent concordance rate of 95% (n= 152/160) with the multiplex PCR.

Conclusions

Allplex® STI Essential multiplex PCR assay improves the detection of T. vaginalis with an excellent specificity and therefore represents an interesting tool to evaluate the prevalence of this neglected infection.

目的：本工作的目的是研究泌尿生殖道滴虫病的流行病学设置系统筛查性传播感染，使用多重分子测定。此外，与内部PCR相比，对综合征组检测阴道生殖道绦虫的特异性进行了评估。方法：使用Allplex®STI Essential分子小组对2020 - 2024年间送至性病筛查的41,507份样本进行分析，该分子小组针对阴道T.、沙眼衣原体、淋病奈瑟菌、生殖支原体、人支原体、细小脲原体和解脲原体。剩余的阴道绦虫阳性样本保存起来，使用针对β -微管蛋白基因的单一内部qPCR检测进行确认。结果：337份（0.8%）样本（282例，0.093%）阴道乳杆菌阳性。20至24岁患者的阳性率最高（1.6%），而45岁以上的病例数为轶事（0.4%）。男性的患病率比女性低10倍。24%的患者至少同时感染一种病原体，即沙眼衣原体（n=17%）和/或生殖支原体（9.2%）和/或淋病奈瑟菌（3.6%）。半数以上阴道梭菌阳性患者无症状，其中88%接受了治疗。有症状的患者多表现为异常白带、瘙痒和/或排尿困难。160份样品经单链PCR扩增，与多重PCR的符合率为95% （n= 152/160）。结论：Allplex®STI基本多重PCR检测提高了阴道T.的检测，具有良好的特异性，因此代表了一个有趣的工具来评估这种被忽视的感染的患病率。

{"title":"Prevalence and bio-clinical characterisation of Trichomonas vaginalis infection in a large cohort of French patients screened using a molecular syndromic panel for sexually transmitted infections","authors":"Lya Hamet , Florence Robert-Gangneux , Clément Cazala , Gabriel Auger , Jean-Pierre Gangneux","doi":"10.1016/j.jinf.2025.106610","DOIUrl":"10.1016/j.jinf.2025.106610","url":null,"abstract":"<div><h3>Objectives</h3><div>The aim of this work was to study the epidemiology of urogenital trichomoniasis in the setting of systematic screening of STIs, using a multiplex molecular assay. Besides, the specificity for <em>T. vaginalis</em> detection of the syndromic panel was assessed comparatively to an in-house PCR.</div></div><div><h3>Methods</h3><div>41,507 samples sent for STI screening between 2020 and 2024 were analysed using the Allplex® STI Essential molecular panel targeting <em>T. vaginalis, C. trachomatis, N. gonorrhoeae, M. genitalium, M. hominis, Ureaplasma parvum,</em> and <em>U. urealyticum.</em> Remaining samples positive for <em>T. vaginalis</em> were stored for confirmation using a simplex in-house qPCR assay targeting the beta-tubulin gene.</div></div><div><h3>Results</h3><div>337 (0.8%) samples (282 patients; 0.93%) were positive for <em>T. vaginalis</em>. The highest rate of positivity was observed in patients aged between 20 and 24 (1.6%), whereas the number of cases over 45 years was anecdotal (0.4%). Prevalence was ten times lower in men than in women. Twenty-four percent were co-infected with at least one pathogen, i.e., <em>C. trachomatis</em> (n=17%) and/or <em>M. genitalium</em> (9.2%) and/or <em>N. gonorrhoeae</em> (3.6%). More than half patients positive for <em>T. vaginalis</em> were asymptomatic, of whom 88% were treated. Symptomatic patients presented mostly with abnormal leucorrhea, pruritus and/or dysuria. Amplification of 160 samples by simplex PCRs showed an excellent concordance rate of 95% (n= 152/160) with the multiplex PCR.</div></div><div><h3>Conclusions</h3><div>Allplex® STI Essential multiplex PCR assay improves the detection of <em>T. vaginalis</em> with an excellent specificity and therefore represents an interesting tool to evaluate the prevalence of this neglected infection.</div></div>","PeriodicalId":50180,"journal":{"name":"Journal of Infection","volume":"91 4","pages":"Article 106610"},"PeriodicalIF":11.9,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145006708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0