不同质的黄金葡萄球菌菌株的全球分布 - - 中介性万科米辛菌株 (1997-2021):系统性审查和元分析
Masoud Keikha1, Mohsen Karbalaei2
1Department of Microbiology and Virology, School of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran.
Journal of global antimicrobial resistance
|February 9, 2024
概括
全球异质菌素中间体黄金葡萄球菌 (hVISA) 的流行率正在增加,特别是在血液感染中. 这种增加威胁到万科米辛治疗的有效性,并需要对这些耐药菌株进行普遍控制计划.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 异质的米素中间体黄金葡萄球菌 (hVISA) 显著导致米素治疗失败和不良临床结果.
- 了解hVISA的全球流行,趋势和遗传特征对于有效管理至关重要.
研究的目的:
- 为了全面评估全球流行,趋势和hVISA菌株的遗传背景.
- 评估hVISA对治疗结果的影响,并确定风险因素.
主要方法:
- 根据PRISMA 2020检查清单进行了一项元分析.
- 在全球数据库中搜索了关于hVISA在抗甲基黄金葡萄球菌 (MRSA) 临床分离物中患病率的研究.
- 使用事件率和95%置信区间分析了流行率和趋势变化.
主要成果:
- 分析包括了124项研究,其中有114,801个MRSA分离体,显示hVISA的总流行率为64%.
- 虽然hVISA感染频率正在上升,但亚洲和欧洲/美国之间没有明显的地理差异 (6.1%和6.8%).
- 与其他感染 (5.5%) 相比,hVISA感染在细菌性患者中更为普遍 (9.4%),导致住院,成本和死亡率增加. SCCmec II和III类型是最常见的基因型.
结论:
- 越来越多的hVISA患病率对万科米辛治疗疗效构成重大威胁.
- 血液样本中更高的患病率凸显了对细菌病患者的危险性.
- 需要一个通用的战略来识别和控制hVISA在医疗机构的传播.
相关概念视频
Microbial Classification System
1.8K
Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
1.8K
Modern Molecular Taxonomy
866
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
866
Applications of Molecular Taxonomy
717
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
717
Methods to Assess Microbial Populations
103
Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a...
103


