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Nocardia otitidiscaviarum causing pulmonary nocardiosis: a case report and its review of the literature 引起肺诺卡氏杆菌病的耳蒂盘状诺卡氏杆菌:病例报告及其文献综述
Pub Date : 2024-02-01 DOI: 10.1099/acmi.0.000530.v5
Saumya P. Srivastava, A. Samaddar, Salman Khan, V. Tak, G. Bohra, Deepak Sharma, Arnab Ghosh, V. Nag
Background. Infections caused by Nocardia spp. can occur in immunocompromised as well as immunocompetent individuals. Although nocardiosis is rare, it is being increasingly recognized owing to the rise in occurrence rate over the years. The documentation of pleural involvement in nocardiosis is rare in India. Case. We report a case of pulmonary nocardiosis in an immunocompromised individual caused by Nocardia otitidiscaviarum. Discussion. Pulmonary nocardiosis caused by Nocardia otitidiscaviarum may go unnoticed without clinical suspicion. Correct and timely identification is the key to proper patient management. Conclusion. Coordination between clinicians and microbiologists is necessary for early diagnosis and appropriate management of nocardiosis.
背景。诺卡氏杆菌引起的感染既可发生在免疫力低下的人身上,也可发生在免疫力正常的人身上。虽然诺卡氏杆菌病十分罕见,但由于近年来发病率上升,人们对它的认识也在不断提高。在印度,胸膜受累于诺卡菌病的病例十分罕见。 病例。我们报告了一例免疫力低下的患者因耳尖念珠菌引起的肺念珠菌病。 讨论。如果没有临床怀疑,由鹦鹉热诺卡菌引起的肺诺卡菌病可能会被忽视。正确及时地识别是妥善处理患者的关键。 结论。临床医生和微生物学家之间的协调对于早期诊断和妥善处理念珠菌病非常必要。
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引用次数: 0
Infratemporal abscess: a rare complication of a common procedure 颞下脓肿:一种常见手术的罕见并发症
Pub Date : 2024-02-01 DOI: 10.1099/acmi.0.000721.v3
Rajesh Kotagiri, Matthew L Repp, Michael H. Kim, Faissal Stipho
The infratemporal fossa (ITF) is an anatomically complex cavity that houses a variety of muscular and neurovascular structures at the base of the skull. Infections involving the ITF, though uncommon, can be fatal due to the difficulties of accessing this anatomical space and its proclivity to evolve into a cavernous venous thrombosis (CVT). As a result, a multi-disciplinary approach involving several surgical and medical subspecialists is often warranted. We present a case of an infratemporal fossa abscess (IFA) after wisdom teeth extraction with a very complicated clinical course and a distinct microbiologic profile.
颞下窝(ITF)是一个解剖结构复杂的腔隙,位于颅底,容纳了各种肌肉和神经血管结构。涉及 ITF 的感染虽然并不常见,但由于难以进入这一解剖空间,而且容易演变为海绵静脉血栓 (CVT),因此可能是致命的。因此,往往需要多个外科和内科亚专科医师共同参与的多学科治疗方法。我们介绍了一例智齿拔除后的颞下窝脓肿(IFA)病例,其临床病程非常复杂,微生物学特征也很明显。
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引用次数: 0
Detection and characterization of micro-organisms linked to unsealed drugs sold in Ihiagwa community, Owerri, Imo State, Nigeria 尼日利亚伊莫州奥韦里市 Ihiagwa 社区销售的未密封药品所含微生物的检测和特征描述
Pub Date : 2024-02-01 DOI: 10.1099/acmi.0.000752.v3
U. Ekeleme, V. O. Ikwuagwu, U. Chukwuocha, Jane C. Nwakanma, Stephanie A. Adiruo, I. O. Ogini, I. U. Ude
The contamination of pharmaceutical products by micro-organisms poses a significant risk to public health. This study was conducted to detect and characterize micro-organisms associated with unsealed drugs sold in Ihiagwa community in Owerri, Imo State, Nigeria. A variety of microbiological techniques were employed to analyse samples from unsealed drug containers. The identification process involved morphological, biochemical and sugar utilization methods, aiding in the accurate determination of microbial species. Microbial contamination was observed in 42 (84 %) out of 50 samples, with contaminants including bacteria and fungi. The range of contamination is between 1.2±0.01×103 and 2.3±0.02×103 c.f.u. ml−1 for viable count, 0.1±0.02×102 and 0.3±0.01×102 c.f.u. g−1 for coliform count and 0.2±0.01×101 and 0.5±0.01×101 c.f.u. g−1 for fungi count. The identified microbes were Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans and Aspergillus niger. The most common bacterial isolate was S. aureus (51.8 %), while C. albicans (73.3 %) was the most prevalent fungus. Among the pharmacies and healthcare facilities examined, the Uchems pharmacy had the highest proportion of bacterial isolates (37 %), followed by the Stepwise pharmacy (22.2 %), while the lowest proportion was found at the Roseline Health Clinic (7.4 %). The identification of potentially harmful micro-organisms in these unsealed drug container samples emphasizes the importance of stringent quality control measures and improved handling, storage and packaging practices to ensure product safety and efficacy, especially among pharmacetical dealers.
微生物对药品的污染对公众健康构成重大风险。本研究旨在检测尼日利亚伊莫州奥韦里市伊希亚格瓦社区销售的未密封药品中的相关微生物并确定其特征。研究采用了多种微生物学技术来分析未密封药品容器中的样本。鉴定过程涉及形态学、生物化学和糖利用方法,有助于准确确定微生物种类。在 50 个样品中,有 42 个(84%)观察到微生物污染,污染物包括细菌和真菌。活菌数污染范围为 1.2±0.01×103 和 2.3±0.02×103 c.f.u. ml-1,大肠菌群污染范围为 0.1±0.02×102 和 0.3±0.01×102 c.f.u. g-1,真菌污染范围为 0.2±0.01×101 和 0.5±0.01×101 c.f.u. g-1。确定的微生物有金黄色葡萄球菌、大肠杆菌、绿脓杆菌、白色念珠菌和黑曲霉。最常见的细菌分离物是金黄色葡萄球菌(51.8%),而最常见的真菌是白念珠菌(73.3%)。在接受检查的药房和医疗机构中,Uchems 药房的细菌分离物比例最高(37%),其次是 Stepwise 药房(22.2%),而 Roseline 健康诊所的细菌分离物比例最低(7.4%)。在这些未密封的药品容器样本中发现潜在的有害微生物强调了严格的质量控制措施和改进处理、储存和包装方法的重要性,以确保产品的安全性和有效性,尤其是在药剂经销商中。
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引用次数: 0
Targeted genome sequencing for tuberculosis drug susceptibility testing in South Africa: a proposed diagnostic pipeline 南非结核病药敏测试的目标基因组测序:拟议的诊断管道
Pub Date : 2024-02-01 DOI: 10.1099/acmi.0.000740.v3
Tayarv J. Bagratee, D. Studholme
In July 2023, the World Health Organization (WHO) began recommending targeted next-generation sequencing (tNGS), due to its ability to detect resistance to many drugs with a single test. In March 2023, South Africa further adopted the GeneXpert XDR cartridge, which detects mutations associated with resistance to second-line injectable drugs. Here, we consider the feasibility for implementing tNGS in South Africa, what such a facility might look like and the specific context of this upper-middle-income country. Whilst the WHO now recommends tNGS for TB diagnostics and DST, there are many economic and infrastructural challenges opposing its deployment. In lieu of this, we instead recommend a stratified diagnostic pipeline that utilizes South Africa’s existing GeneXpert technologies, attempting to reduce the costs associated with implementation of tNGS.
2023 年 7 月,世界卫生组织(WHO)开始推荐有针对性的新一代测序(tNGS),因为它能够通过一次检测发现多种药物的耐药性。2023 年 3 月,南非进一步采用了 GeneXpert XDR 试剂盒,该试剂盒可检测与二线注射药物耐药性相关的突变。在此,我们将考虑在南非实施 tNGS 的可行性、这样的设施可能是什么样的,以及这个中上收入国家的具体情况。虽然世界卫生组织现在推荐将 tNGS 用于结核病诊断和 DST,但经济和基础设施方面的许多挑战阻碍了它的部署。为此,我们建议采用分层诊断管道,利用南非现有的 GeneXpert 技术,努力降低与实施 tNGS 相关的成本。
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引用次数: 0
Draft genomes announcement of Vietnamese Xanthomonas euvesicatoria strains causing bacterial spot on pepper 公布引起辣椒细菌性斑点病的越南黄单胞菌菌株基因组草案
Pub Date : 2024-01-01 DOI: 10.1099/acmi.0.000741.v3
Aastha Subedi, Nguyen Thi Thu Nga, Doan Thi Kieu Tien, G. Minsavage, Pamela D. Roberts, Erica M. Goss, Jeffrey B. Jones
Xanthomonas euvesicatoria the primary causal agent of bacterial spot of pepper (BSP), poses a significant global challenge, resulting in severe defoliation and yield losses for pepper growers. We present the whole genome sequences of eight X. euvesicatoria strains associated with BSP in Vietnam. These genomes contribute to representation of pepper production regions in the global sample of X. euvesicatoria genomes, enabling the development of precise global disease management strategies.
黄单胞菌(Xanthomonas euvesicatoria)是辣椒细菌性斑点病(BSP)的主要病原菌,它给全球带来了巨大挑战,导致辣椒种植者严重落叶和减产。我们展示了越南与 BSP 相关的八个 X. euvesicatoria 菌株的全基因组序列。这些基因组有助于代表全球 X. euvesicatoria 基因组样本中的辣椒产区,从而制定精确的全球病害管理策略。
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引用次数: 0
Listeria innocua infection in an old case of total knee replacement – an unusual case report 一例陈旧的全膝关节置换手术中的无毒李斯特菌感染--一份不寻常的病例报告
Pub Date : 2024-01-01 DOI: 10.1099/acmi.0.000524.v3
Minakshi Gupta, Uma Shankar Saha, Ritesh Kumar, J. Laik, Minakshi Mishra
Prosthetic implant-associated arthritis due to Listeria is mostly reported for Listeria monocytogenes . Here, we describe a patient who underwent total knee replacement 12 years ago and presented with pain, tenderness, redness and local rise in temperature in the right knee. Purulent fluid was aspirated. Upon microbiological analysis, culture yielded Listeria innocua . L. innocua is rare. Listeria is not reported as a contaminant and routine cultures may be negative. Because of the long interval between surgery and the onset of symptoms, clinical suspicion, radiological investigations and analysing multiple samples are of immense help.
李斯特菌引起的假体植入相关关节炎大多是由单核细胞增多性李斯特菌引起的。在此,我们描述了一名 12 年前接受全膝关节置换术的患者,患者出现右膝关节疼痛、压痛、发红和局部温度升高。患者抽出了脓性液体。经微生物分析,培养出了无毒李斯特菌。 无毒李斯特菌非常罕见。 李斯特菌并不作为污染物报告,常规培养也可能呈阴性。由于手术和症状出现之间的间隔时间较长,因此临床怀疑、放射学检查和对多个样本进行分析非常有用。
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引用次数: 0
Whole genome sequencing and genotyping Klebsiella pneumoniae multi-drug resistant hospital isolates from Western Kenya 全基因组测序和对肯尼亚西部医院耐多药肺炎克雷伯氏菌分离物进行基因分型
Pub Date : 2024-01-01 DOI: 10.1099/acmi.0.000667.v4
Victor Dinda, A. Kimang’a, D. Kariuki, A. Sifuna, Thomas James O’Brien, Martin Welch, O.N. Reva
Objectives. Klebsiella pneumoniae are a frequent cause of nosocomial infections worldwide. Sequence type 147 (ST147) has been reported as a major circulating high-risk lineage in many countries, and appears to be a formidable platform for the dissemination of antimicrobial resistance (AMR) determinants. However, the distribution of this pathogen in Western African hospitals has been scarcely studied. The main objective of this work was to perform whole genome sequencing of K. pneumoniae isolates from a referral hospital in Kakamega (Kenya) for genotyping and identification of AMR and virulence determinants. Methods. In total, 15 K . pneumoniae isolates showing a broad spectrum antimicrobial resistance were selected for whole genome sequencing by Illumina HiSeq 2500 platform. Results. ST147 was the dominant lineage among the highly-resistant K. pneumoniae isolates that we sequenced. ST147 was associated with both community- and the hospital-acquired infections, and with different infection sites, whereas other STs were predominantly uropathogens. Multiple antibiotic resistance and virulence determinants were detected in the genomes including extended-spectrum β-lactamases (ESBL) and carbapenemases. Many of these genes were plasmid-borne. Conclusions. Our data suggest that the evolutionary success of ST147 may be linked with the acquisition of broad host-range plasmids, and their propensity to accrue AMR and virulence determinants. Although ST147 is a dominant lineage in many countries worldwide, it has not been previously reported as prevalent in Africa. Our data suggest an influx of new nosocomial pathogens with new virulence genes into African hospitals from other continents.
目的。 肺炎克雷伯氏菌是全球范围内常见的院内感染病原菌。据报道,序列类型 147(ST147)是许多国家主要的循环高风险菌系,似乎是传播抗菌药耐药性(AMR)决定因素的一个强大平台。然而,这种病原体在西非医院的分布情况却鲜有研究。这项工作的主要目的是对来自卡卡梅加(肯尼亚)一家转诊医院的肺炎克雷伯菌分离物进行全基因组测序,以进行基因分型并鉴定 AMR 和毒力决定因子。 方法。通过 Illumina HiSeq 2500 平台,共筛选出 15 株具有广谱抗菌耐药性的肺炎双球菌分离株进行全基因组测序。 结果显示在我们测序的高耐药性肺炎克氏菌分离株中,ST147 是最主要的品系。ST147 既与社区感染有关,也与医院感染有关,而且与不同的感染部位有关,而其他 ST 主要是泌尿道病原体。基因组中检测到多种抗生素耐药性和毒力决定因子,包括广谱β-内酰胺酶(ESBL)和碳青霉烯酶。其中许多基因是质粒携带的。 结论我们的数据表明,ST147 的成功进化可能与获得广泛的宿主范围质粒及其积累 AMR 和毒力决定因子的倾向有关。虽然 ST147 在全球许多国家都是一个优势菌系,但以前并没有报道过它在非洲的流行情况。我们的数据表明,带有新毒力基因的新病原菌正从其他大陆涌入非洲医院。
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引用次数: 0
The longitudinal effect of disseminating handwashing public health education to children in India via co-created, culturally relevant resources 通过共同创建的文化相关资源向印度儿童传播洗手公共卫生教育的纵向影响
Pub Date : 2024-01-01 DOI: 10.1099/acmi.0.000677.v3
Sapphire Crosby, S. Younie, Harnesh Vijay Ujenia, Katie Laird
Infectious diseases are a leading cause of death for children from low- and middle-income countries (LMICs), often due to inadequate hand-hygiene. This study evaluates culturally relevant educational resources as a vehicle to disseminate the importance of handwashing amongst children in India. Employing a participatory action research (PAR) model and mixed methods, this follow-up longitudinal study evaluates a set of innovate educational handwashing resources and workshops specifically co-created for use in the State of Gujarat, and how they aid teachers in the teaching of hand-hygiene over a 3 year period. Working alongside local NGOs on-the-ground, teacher questionnaires (n=58) and focus groups including a brief questionnaire with teachers (n=35) were conducted to assess the impact of trainer workshops. In addition, pre- and post-workshop worksheets were conducted with children (n=98). Percentage change was calculated between children’s pre-and post-worksheet scores and a cumulative frequency of responses to each questionnaire criterion was measured. Data from the focus group found that the resources had been used in over 200 schools by more than 5000 children. In addition, 92.28 % of teachers said they would use the resources within their classrooms in India, with 58.16 % of pupils having an increased understanding of germs/handwashing directly after the workshop. Teachers reported that they are able to teach microbiology and handwashing more effectively. Furthermore, following a focus group, 100 % of teachers noted a reduction in childhood vomiting and diarrhoeal illnesses linked with insufficient hand-hygiene across 46 schools in the State of Gujarat since using the Germ’s Journey resources.
传染病是中低收入国家(LMICs)儿童死亡的主要原因,而这往往是由于手部卫生不足造成的。本研究评估了与文化相关的教育资源,并将其作为在印度儿童中宣传洗手重要性的工具。这项后续纵向研究采用了参与式行动研究(PAR)模式和混合方法,评估了一套专门为古吉拉特邦共同创建的创新洗手教育资源和研讨会,以及它们在 3 年时间里如何帮助教师开展手卫生教学。通过与当地非政府组织的实地合作,开展了教师问卷调查(58 人)和焦点小组活动,其中包括对教师的简要问卷调查(35 人),以评估培训师讲习班的影响。此外,还对儿童(人数=98)进行了工作坊前和工作坊后的问卷调查。计算了儿童在工作表前和工作表后得分之间的百分比变化,并对每项问卷标准的累计答复频率进行了测量。焦点小组的数据显示,200 多所学校的 5000 多名儿童使用了这些资源。此外,92.28% 的教师表示,他们将在印度的课堂上使用这些资源,58.16% 的学生在研讨会后直接加深了对细菌/洗手的理解。教师们表示,他们能够更有效地教授微生物学和洗手知识。此外,在焦点小组讨论之后,古吉拉特邦 46 所学校的 100%教师都指出,自从使用了 "病菌之旅 "资源之后,与手部卫生不足有关的儿童呕吐和腹泻疾病减少了。
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引用次数: 0
Metagenome-assembled genomes from mineral tundra soils in Rásttigáisá, northern Norway 挪威北部拉斯蒂加伊萨矿质冻土的元基因组组装基因组
Pub Date : 2024-01-01 DOI: 10.1099/acmi.0.000655.v3
I. Pessi, Aino Rutanen, J. Hultman
Microbial communities in tundra soils remain largely unknown despite their important roles in the cycling of greenhouse gases. Here, we report 59 non-redundant metagenome-assembled genomes (MAGs) recovered from mineral tundra soils in Rásttigáisá, northern Norway. The MAGs were obtained by clustering contigs according to tetranucleotide frequency and differential coverage and were manually curated to remove contigs with outlying GC content and/or mean coverage. Most MAGs were assigned to the bacterial phyla Candidatus Dormibacterota (n=12), Verrucomicrobiota (n=10), and Acidobacteriota (n=9). All archaeal MAGs (n=4) belong to the genus Candidatus Nitrosopolaris (phylum Thermoproteota). The 59 Rásttigáisá MAGs expand our knowledge of the diversity and ecological roles of tundra microbiomes.
尽管苔原土壤中的微生物群落在温室气体循环中发挥着重要作用,但它们在很大程度上仍不为人所知。在这里,我们报告了从挪威北部拉斯蒂加伊萨(Rásttigáisá)矿质苔原土壤中回收的59个非冗余元基因组(MAGs)。这些基因组是根据四核苷酸频率和差异覆盖率对等位基因进行聚类而得到的,并经过人工编辑以去除GC含量和/或平均覆盖率偏高的等位基因。大多数 MAG 被归入细菌门:Candidatus Dormibacterota(12 个)、Verrucomicrobiota(10 个)和 Acidobacteriota(9 个)。所有古生菌 MAGs(4 个)都属于热蛋白门中的硝化多糖属(Candidatus Nitrosopolaris)。59 个拉斯蒂加伊萨微生物群扩展了我们对苔原微生物群多样性和生态作用的认识。
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引用次数: 0
BactEXTRACT: an R Shiny app to quickly extract, plot and analyse bacterial growth and gene expression data BactEXTRACT:用于快速提取、绘制和分析细菌生长和基因表达数据的 R Shiny 应用程序
Pub Date : 2024-01-01 DOI: 10.1099/acmi.0.000742.v3
Julien Dénéréaz, J. Veening
To streamline the analysis and visualization of bacterial growth and gene expression data obtained by microtitre plate readers, we developed BactEXTRACT, an intuitive, easy-to-use R Shiny application. BactEXTRACT simplifies the transition from raw optical density, fluorescence and luminescence measurements to publication-ready plots. This package offers a user-friendly interface that reduces the complexity involved in growth curve and gene expression analysis and is generally applicable. BactEXTRACT is available at https://veeninglab.com/bactextract.
为了简化微孔板阅读器获得的细菌生长和基因表达数据的分析和可视化,我们开发了 BactEXTRACT,这是一款直观、易用的 R Shiny 应用程序。BactEXTRACT 简化了从原始光密度、荧光和发光测量到可用于发表的图表的转换过程。该软件包提供了友好的用户界面,降低了生长曲线和基因表达分析的复杂性,具有普遍适用性。BactEXTRACT 可从 https://veeninglab.com/bactextract 网站获取。
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引用次数: 0
期刊
Access Microbiology
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