Epidemic features and megagenomic analysis of childhood Mycoplasma pneumoniae post COVID-19 pandemic: a 6-year study in southern China.

IF 8.4 2区 医学 Q1 IMMUNOLOGY
Emerging Microbes & Infections Pub Date : 2024-12-01 Epub Date: 2024-06-27 DOI:10.1080/22221751.2024.2353298
Yi Xu, Chen Yang, Panpan Sun, Fansen Zeng, Qian Wang, Jianlong Wu, Chunxiao Fang, Che Zhang, Jinping Wang, Yiling Gu, Xiaohuan Wu, Xiaoxian Zhang, Bin Yang, Juhua Yang, Hongwei Zhang, Jiacee Lian, Jinqiu Zhang, Li Huang, Qizhou Lian
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Abstract

With the atypical rise of Mycoplasma pneumoniae infection (MPI) in 2023, prompt studies are needed to determine the current epidemic features and risk factors with emerging trends of MPI to furnish a framework for subsequent investigations. This multicentre, retrospective study was designed to analyse the epidemic patterns of MPI before and after the COVID-19 pandemic, as well as genotypes and the macrolide-resistance-associated mutations in MP sampled from paediatric patients in Southern China. Clinical data was collected from 1,33,674 patients admitted into investigational hospitals from 1 June 2017 to 30 November 2023. Metagenomic next-generation sequencing (mNGS) data were retrieved based on MP sequence positive samples from 299 paediatric patients for macrolide-resistance-associated mutations analysis. Pearson's chi-squared test was used to compare categorical variables between different time frames. The monthly average cases of paediatric common respiratory infection diseases increased without enhanced public health measures after the pandemic, especially for influenza, respiratory syncytial virus infection, and MPI. The contribution of MPI to pneumoniae was similar to that in the outbreak in 2019. Compared to mNGS data between 2019-2022 and 2023, the severity of MP did not grow stronger despite higher rates of macrolide-resistance hypervariable sites, including loci 2063 and 2064, were detected in childhood MP samples of 2023. Our findings indicated that ongoing surveillance is necessary to understand the impact of post pandemic on MP transmission disruption during epidemic season and the severity of clinical outcomes in different scenarios.

COVID-19大流行后儿童肺炎支原体的流行特征和巨基因组分析:华南地区为期 6 年的研究。
随着 2023 年肺炎支原体感染(MPI)的非典型上升,需要及时开展研究以确定当前的流行特征和风险因素以及 MPI 的新趋势,从而为后续研究提供框架。这项多中心回顾性研究旨在分析 COVID-19 大流行前后肺炎支原体感染的流行模式,以及从华南地区儿科患者中抽取的肺炎支原体的基因型和与大环内酯类药物耐药性相关的突变。临床数据收集自2017年6月1日至2023年11月30日期间调查医院收治的133674名患者。根据 299 名儿科患者的 MP 序列阳性样本检索了元基因组新一代测序(mNGS)数据,用于分析大环内酯类药物耐药性相关突变。采用皮尔逊卡方检验比较不同时间段的分类变量。大流行后,在没有加强公共卫生措施的情况下,儿科常见呼吸道感染疾病的月平均病例数有所增加,尤其是流感、呼吸道合胞病毒感染和 MPI。MPI 对肺炎的贡献与 2019 年爆发时相似。与 2019-2022 年和 2023 年的 mNGS 数据相比,尽管在 2023 年的儿童 MP 样本中检测到了更高比例的大环内酯耐药高变异位点,包括位点 2063 和 2064,但 MP 的严重性并未增强。我们的研究结果表明,有必要进行持续监测,以了解大流行后MP传播中断对流行季节的影响以及不同情况下临床结果的严重程度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Emerging Microbes & Infections
Emerging Microbes & Infections IMMUNOLOGY-MICROBIOLOGY
CiteScore
26.20
自引率
2.30%
发文量
276
审稿时长
20 weeks
期刊介绍: Emerging Microbes & Infections is a peer-reviewed, open-access journal dedicated to publishing research at the intersection of emerging immunology and microbiology viruses. The journal's mission is to share information on microbes and infections, particularly those gaining significance in both biological and clinical realms due to increased pathogenic frequency. Emerging Microbes & Infections is committed to bridging the scientific gap between developed and developing countries. This journal addresses topics of critical biological and clinical importance, including but not limited to: - Epidemic surveillance - Clinical manifestations - Diagnosis and management - Cellular and molecular pathogenesis - Innate and acquired immune responses between emerging microbes and their hosts - Drug discovery - Vaccine development research Emerging Microbes & Infections invites submissions of original research articles, review articles, letters, and commentaries, fostering a platform for the dissemination of impactful research in the field.
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