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Pertussis clinical profile shift, severity, prediction in a tertiary hospital: A comparative study before, during, and after COVID-19 in Southern China 三甲医院百日咳临床特征转变、严重程度及预测:华南地区新冠肺炎发生前、发生中和发生后的比较研究
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-29 DOI: 10.1016/j.jiph.2024.102610
Shufeng Tian , Yulan Chen , Qiru Su , Biao Sun , Zengrui Lin , Yuchun Long , Hongmei Wang , Cuijuan Liao , Ying Zhang , Jinjun Zheng , Lvjun Chen , Song Guan , Sen Wang , Xinlei Xu , Jingwen Ai , Wenhong Zhang , Jikui Deng

Objective

To analyze the epidemiological characteristics, clinical manifestations, antimicrobial resistance and develop a predictive model for severe pertussis spanning five years – before, during, and after the COVID-19 pandemic – in Shenzhen children’s hospital in southern China, aiming to provide insights into the pandemic impact and control measures on the pertussis disease profile.

Methods

Demographic, clinical, vaccination, and laboratory data were collected for patients who tested positive for pertussis by polymerase chain reaction and/or culture from January 1, 2019, to March 30, 2024. Analysis included changes in demographic and clinical features, indicators of severe cases, and resistance patterns over the study period.

Results

During this period, 3963 patients were diagnosed, with 79 severe (PICU admitted) cases; 1433 isolates underwent antimicrobial susceptibility testing. In late 2023, pertussis cases began to increase. From 2019 to 2024, the proportion of cases among 4–6 year olds rose from 4.9 % to 28.6 %, and among 7–11 year olds from 0.7 % to 21.2 %. Macrolide resistance surged from 46.5 % in 2019 to 97.3 % in 2024, with 80 % of resistant hospitalized cases initially treated with macrolides. Clinical severity and co-infection increased post-pandemic, with a larger number of cases necessitating antibiotic changes and enhanced supportive care. Vaccination protected against severe disease. Indicators such as white blood cell count, lymphocyte to neutrophil ratio, platelet count, cyanosis and pneumonia predicted disease severity.

Conclusions

Post-pandemic, pertussis cases shifted from infants to school-aged children, with increased clinical severity and high macrolide resistance. Urgent measures are needed to optimize vaccination schedules and develop management strategies addressing and changing epidemiological patterns.
目的分析深圳市儿童医院2019冠状病毒病疫情前、中、后5年重症百日咳的流行病学特征、临床表现、耐药情况,建立预测模型,为疫情对百日咳疾病的影响及防控措施提供依据。方法收集2019年1月1日至2024年3月30日通过聚合酶链反应和/或培养检测为百日咳阳性患者的人口统计学、临床、疫苗接种和实验室数据。分析包括研究期间人口统计学和临床特征、重症病例指标和耐药模式的变化。结果本组共确诊3963例,重症(PICU入院)79例;1433株进行了药敏试验。2023年末,百日咳病例开始增加。从2019年到2024年,4-6岁儿童的病例比例从4.9%上升到28.6%,7-11岁儿童的病例比例从0.7%上升到21.2%。大环内酯类药物耐药性从2019年的46.5%激增至2024年的97.3%,80%的耐药住院病例最初使用大环内酯类药物治疗。临床严重程度和合并感染在大流行后增加,需要更换抗生素和加强支持性护理的病例数量增加。接种疫苗可以预防严重疾病。白细胞计数、淋巴细胞/中性粒细胞比、血小板计数、紫绀和肺炎等指标预测疾病严重程度。结论大流行后,百日咳病例从婴儿转移到学龄儿童,临床严重程度增加,大环内酯类药物耐药性高。需要采取紧急措施,优化疫苗接种计划,制定处理和改变流行病学模式的管理战略。
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引用次数: 0
Regional heterogeneity of malaria healthcare seeking and diagnosis in China (2017–2022): Implications in preventing re-establishment of malaria transmission 中国疟疾就医和诊断的地区异质性(2017-2022 年):预防疟疾传播重建的意义
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-22 DOI: 10.1016/j.jiph.2024.102601
Jian-hai Yin , Li Zhang , Bo-yu Yi , Shui-sen Zhou , Zhi-gui Xia

Background

Enhancing regional collaboration in malaria prevention and control is a pivotal strategy for malaria control and elimination in China. The objective of this study is to examine the regional heterogeneity of malaria healthcare-seeking behaviors and diagnosis across various regions in China from 2017 to 2022.

Methods

Individual case data from national malaria surveillance databases were utilized. An analysis was conducted to discern the regional variations in the healthcare-seeking behaviors and diagnosis among regions.

Results

From 2017 to 2022, a total of 10,943 malaria cases were reported in China, predominantly imported cases (10,929), with significant variations in the distribution of different Plasmodium species among regions (P < 0.001) and annually (P < 0.001). There was a notable lack of timeliness in healthcare seeking (56.1 %) and case confirmation (67.3 %) with substantial regional disparities (P < 0.001). These delays predominantly occurred in county and prefectural-level medical institutions (P < 0.001), where misidentification of Plasmodium species was also prevalent (P < 0.001). Furthermore, an initial diagnosis of malaria was observed in 76.6 % of cases (P < 0.001), yet 87.8 % of malaria cases were ultimately confirmed correctly (P < 0.001). Notably, P. ovale (21.0 %) and P. malariae (10.8 %) were easily misidentified as P. vivax (P < 0.001).

Conclusion

The development of regional-specific interventions is essential to raise public awareness regarding malaria-related knowledge and to enhance the vigilance of health workers and their capacity of malaria testing. This will strengthen the nation’s malaria surveillance and response system. Concurrently, fostering technological innovations for the rapid and precise identification of Plasmodium species, along with effective coordination of cross-regional mechanisms, is imperative to prevent re-establishment of malaria transmission in China.
背景加强疟疾防控的区域协作是中国控制和消除疟疾的关键战略。本研究旨在探讨 2017 年至 2022 年中国各地区疟疾就医行为和诊断的区域异质性。方法利用国家疟疾监测数据库中的个体病例数据。结果2017-2022年,中国共报告疟疾病例10943例,以输入性病例为主(10929例),不同疟原虫种类的分布在地区间(P <0.001)和年度间(P <0.001)存在显著差异。就医及时率(56.1%)和病例确诊及时率(67.3%)明显不足,地区间差异很大(P < 0.001)。这些延误主要发生在县级和地市级医疗机构(P < 0.001),在这些医疗机构中,疟原虫种类的错误鉴定也很普遍(P < 0.001)。此外,76.6%的病例被初步诊断为疟疾(P <0.001),但87.8%的疟疾病例最终被正确确诊(P <0.001)。值得注意的是,卵形疟原虫(21.0%)和疟疾疟原虫(10.8%)很容易被误认为间日疟原虫(P < 0.001)。这将加强国家的疟疾监测和应对系统。同时,促进疟原虫快速、精确鉴定的技术创新,以及跨区域机制的有效协调,对于防止疟疾在中国的再次传播至关重要。
{"title":"Regional heterogeneity of malaria healthcare seeking and diagnosis in China (2017–2022): Implications in preventing re-establishment of malaria transmission","authors":"Jian-hai Yin ,&nbsp;Li Zhang ,&nbsp;Bo-yu Yi ,&nbsp;Shui-sen Zhou ,&nbsp;Zhi-gui Xia","doi":"10.1016/j.jiph.2024.102601","DOIUrl":"10.1016/j.jiph.2024.102601","url":null,"abstract":"<div><h3>Background</h3><div>Enhancing regional collaboration in malaria prevention and control is a pivotal strategy for malaria control and elimination in China. The objective of this study is to examine the regional heterogeneity of malaria healthcare-seeking behaviors and diagnosis across various regions in China from 2017 to 2022.</div></div><div><h3>Methods</h3><div>Individual case data from national malaria surveillance databases were utilized. An analysis was conducted to discern the regional variations in the healthcare-seeking behaviors and diagnosis among regions.</div></div><div><h3>Results</h3><div>From 2017 to 2022, a total of 10,943 malaria cases were reported in China, predominantly imported cases (10,929), with significant variations in the distribution of different <em>Plasmodium</em> species among regions (<em>P</em> &lt; 0.001) and annually (<em>P</em> &lt; 0.001). There was a notable lack of timeliness in healthcare seeking (56.1 %) and case confirmation (67.3 %) with substantial regional disparities (<em>P</em> &lt; 0.001). These delays predominantly occurred in county and prefectural-level medical institutions (<em>P</em> &lt; 0.001), where misidentification of <em>Plasmodium</em> species was also prevalent (<em>P</em> &lt; 0.001). Furthermore, an initial diagnosis of malaria was observed in 76.6 % of cases (<em>P</em> &lt; 0.001), yet 87.8 % of malaria cases were ultimately confirmed correctly (<em>P</em> &lt; 0.001). Notably, <em>P. ovale</em> (21.0 %) and <em>P. malariae</em> (10.8 %) were easily misidentified as <em>P. vivax</em> (<em>P</em> &lt; 0.001).</div></div><div><h3>Conclusion</h3><div>The development of regional-specific interventions is essential to raise public awareness regarding malaria-related knowledge and to enhance the vigilance of health workers and their capacity of malaria testing. This will strengthen the nation’s malaria surveillance and response system. Concurrently, fostering technological innovations for the rapid and precise identification of <em>Plasmodium</em> species, along with effective coordination of cross-regional mechanisms, is imperative to prevent re-establishment of malaria transmission in China.</div></div>","PeriodicalId":16087,"journal":{"name":"Journal of Infection and Public Health","volume":"18 1","pages":"Article 102601"},"PeriodicalIF":4.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Mapping trends and hotspots of research on COVID-19 vaccine effectiveness: A comprehensive bibliometric analysis of global research 绘制 COVID-19 疫苗有效性研究的趋势和热点:全球研究文献计量综合分析
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-22 DOI: 10.1016/j.jiph.2024.102597
Jomana W. Alsulaiman , Abdallah Alzoubi , Ahmad Alrawashdeh , Arwa M. Al-Dekah , Sara Abubaker , Wajdi Amayreh , Waleed M. Sweileh , Hamed M. Alzoubi , Khalid A. Kheirallah

Background

With an ever growing and expanding body of literature on the newly developed vaccines against the COVID-19, there is an urgent need for a comprehensive analysis of the current state of research on vaccine effectiveness (VE). This study conducted a comprehensive bibliometric analysis to critically examine the productivity and impact of retrieved publications on COVID-19 VE and to predict the future directions of research in the field.

Methods

The global literature on COVID-19 VE from 2021 to 2024 was extracted from the VIEW-hub website. Using bibliometric analysis tools, specifically Microsoft Excel, the R package "bibliometrix, biblioshiny" and VOSviewer, we analyzed publications for trends in productivity, citations, and global collaboration. Key metrics assessed include publication and citation trends, influential authors, collaborative networks, and thematic evolution, offering a comprehensive view of the research landscape on COVID-19 VE.

Results

A total of 490 publications were authored by 5031 authors from 934 institutions and 78 countries and published in 119 journals. Most retrieved publications were original articles (99.6 %). The United States was the most productive country with 205 publications (41.8 %). Global research collaborations were mainly within developed countries. Analysis of the thematic evolution of the field illustrated changing research focus over three distinct time clusters. Throughout 2021, studies were focused on outlining infection prevention and control measures, as well as examining the efficacy of novel mRNA vaccines. In 2022, the linchpin of research was shifted towards dissecting the epidemiological correlates of the pandemic in light of the widespread use of vaccines. The final cluster showed special emphasis on the new variants of COVID-19 and the long-term outcomes of vaccines.

Conclusion

Our study identified geopolitical disparities and weak engagement from developing countries in the ongoing efforts regarding COVID-19 VE. This study can inform researchers, policymakers, and funding agencies as they assess ongoing research and future directions in COVID-19 VE.
背景随着有关新开发的COVID-19疫苗的文献数量不断增加和扩大,迫切需要对疫苗有效性(VE)的研究现状进行全面分析。本研究进行了全面的文献计量学分析,以批判性地检查检索到的有关 COVID-19 VE 的出版物的生产力和影响,并预测该领域未来的研究方向。方法从 VIEW-hub 网站提取 2021 年至 2024 年有关 COVID-19 VE 的全球文献。我们使用文献计量分析工具,特别是 Microsoft Excel、R 软件包 "bibliometrix, biblioshiny "和 VOSviewer,分析了出版物在生产率、引文和全球合作方面的趋势。评估的关键指标包括发表和引用趋势、有影响力的作者、合作网络和主题演变,从而全面了解 COVID-19 VE 的研究情况。结果来自 78 个国家 934 个机构的 5031 位作者共撰写了 490 篇出版物,发表在 119 种期刊上。检索到的大多数出版物都是原创文章(99.6%)。美国是发表论文最多的国家,共发表了 205 篇论文(占 41.8%)。全球研究合作主要集中在发达国家内部。对该领域主题演变的分析表明,研究重点在三个不同的时间段发生了变化。在整个 2021 年,研究重点是概述感染预防和控制措施,以及研究新型 mRNA 疫苗的功效。2022 年,鉴于疫苗的广泛使用,研究重点转向剖析大流行病的流行病学相关因素。最后一组研究特别强调了 COVID-19 的新变种和疫苗的长期效果。这项研究可为研究人员、政策制定者和资助机构提供信息,帮助他们评估 COVID-19 VE 的当前研究和未来发展方向。
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引用次数: 0
Real-world assessment of reinfection with SARS-CoV-2: Implications for vaccines 对SARS-CoV-2再感染的实际评估:对疫苗的影响
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-20 DOI: 10.1016/j.jiph.2024.102599
Kuang-Hung Tseng , Jeng-Yuan Chioua , Shiow-Ing Wang

Background

There have been over 670 million confirmed cases of SARS-CoV-2 infection globally, resulting in over 6.87 million deaths. With approximately 0.1 %−6.8 % experiencing reinfection. This retrospective cohort study aimed to compare the risk of short-term circulatory and respiratory sequelae between SARS-CoV-2 reinfection and initial infection, and assess the impact of vaccination.

Method

Data from the TriNetX US Collaborative network (2020–2022) were used to create two cohorts based on reinfection status. The main outcome assessed were medical utilization, circulatory and respiratory symptoms, and circulatory and respiratory diseases. The Kaplan-Meier method was used to compare the risks between two cohorts. Four subgroup analyses (vaccination status, age, sex, race) and six sensitivity analyses (rigorous definition, modified exclusion criteria, treatment, different COVID-19 variants timeline, address survivorship bias, and E-value calculation) were also conducted.

Results

The reinfection cohort showed a significant reduction in medical utilization [ Hazard ratio, HR: 0.867, (95 % confidence interval, CI:0.839–0.896) for hospitalization, 0.488 (0.418–0.570) for critical care services, and 0.476 (0.360–0.629) for mechanical ventilation], lower risk of circulatory diseases [ HR: 0.701 (95 % CI:0.637–0.772), 0.695 (0.583–0.829), 0.660 (0.605–0.719), 0.741 (0.644–0.854), 0.614 (0.535–0.705), and 0.758 (0.656–0.876) for ischemic heart disease, inflammatory heart disease, dysrhythmias, venous thromboembolism, other cardiac disorders, and cerebrovascular diseases, respectively], and lower risk of respiratory diseases such as pneumonia, other acute lower respiratory infections, asthma, and hypoxemia [HR: 0.302 (95 % CI: 0.273–0.333), 0.811 (0.686–0.958), 0.791 (0.735–0.850), and 0.392 (0.338–0.455), respectively]. The vaccinated reinfection cohort showed no significant differences in medical utilization, circulatory diseases, or respiratory conditions but had a higher risk of breathing abnormalities. breathing abnormalities [HR: 1.195 (95 % CI:1.087–1.313)].

Conclusions

The individuals who experienced reinfection exhibited milder short-term sequelae in the circulatory and respiratory systems. Vaccine administration protects against cardiovascular or respiratory systems.
全球已有超过6.7亿例SARS-CoV-2确诊病例,导致687多万人死亡。再感染发生率约为0.1% ~ 6.8%。本回顾性队列研究旨在比较SARS-CoV-2再感染和初次感染的短期循环和呼吸道后遗症的风险,并评估疫苗接种的影响。方法使用TriNetX美国合作网络(2020-2022)的数据,根据再感染状况创建两个队列。评估的主要结局是医疗利用、循环和呼吸症状以及循环和呼吸疾病。Kaplan-Meier方法用于比较两个队列之间的风险。还进行了4个亚组分析(疫苗接种状况、年龄、性别、种族)和6个敏感性分析(严格定义、修改的排除标准、治疗、不同的COVID-19变异时间线、解决生存偏差和e值计算)。结果再感染组住院患者的医疗利用率显著降低[危险比,HR: 0.867, 95%可信区间,CI:0.839 ~ 0.896),重症监护服务0.488(0.418 ~ 0.570),机械通气0.476(0.360 ~ 0.629)],循环系统疾病风险降低[HR:缺血性心脏病、炎症性心脏病、心律失常、静脉血栓栓塞、其他心脏疾病和脑血管疾病分别为0.701 (95% CI: 0.637-0.772)、0.695(0.583-0.829)、0.660(0.605-0.719)、0.741(0.644-0.854)、0.614(0.535-0.705)和0.758(0.656-0.876),肺炎、其他急性下呼吸道感染、哮喘和低氧血症等呼吸系统疾病的风险较低[HR: 0.302 (95% CI: 0.302):分别为0.273 ~ 0.333)、0.811(0.686 ~ 0.958)、0.791(0.735 ~ 0.850)、0.392(0.338 ~ 0.455)。接种疫苗的再感染队列在医疗利用、循环系统疾病或呼吸系统疾病方面没有显着差异,但呼吸异常的风险更高。呼吸异常[HR: 1.195 (95% CI: 1.087-1.313)]。结论再感染个体在循环和呼吸系统表现出较轻的短期后遗症。接种疫苗可预防心血管或呼吸系统疾病。
{"title":"Real-world assessment of reinfection with SARS-CoV-2: Implications for vaccines","authors":"Kuang-Hung Tseng ,&nbsp;Jeng-Yuan Chioua ,&nbsp;Shiow-Ing Wang","doi":"10.1016/j.jiph.2024.102599","DOIUrl":"10.1016/j.jiph.2024.102599","url":null,"abstract":"<div><h3>Background</h3><div>There have been over 670 million confirmed cases of SARS-CoV-2 infection globally, resulting in over 6.87 million deaths. With approximately 0.1 %−6.8 % experiencing reinfection. This retrospective cohort study aimed to compare the risk of short-term circulatory and respiratory sequelae between SARS-CoV-2 reinfection and initial infection, and assess the impact of vaccination.</div></div><div><h3>Method</h3><div>Data from the TriNetX US Collaborative network (2020–2022) were used to create two cohorts based on reinfection status. The main outcome assessed were medical utilization, circulatory and respiratory symptoms, and circulatory and respiratory diseases. The Kaplan-Meier method was used to compare the risks between two cohorts. Four subgroup analyses (vaccination status, age, sex, race) and six sensitivity analyses (rigorous definition, modified exclusion criteria, treatment, different COVID-19 variants timeline, address survivorship bias, and E-value calculation) were also conducted.</div></div><div><h3>Results</h3><div>The reinfection cohort showed a significant reduction in medical utilization [ Hazard ratio, HR: 0.867, (95 % confidence interval, CI:0.839–0.896) for hospitalization, 0.488 (0.418–0.570) for critical care services, and 0.476 (0.360–0.629) for mechanical ventilation], lower risk of circulatory diseases [ HR: 0.701 (95 % CI:0.637–0.772), 0.695 (0.583–0.829), 0.660 (0.605–0.719), 0.741 (0.644–0.854), 0.614 (0.535–0.705), and 0.758 (0.656–0.876) for ischemic heart disease, inflammatory heart disease, dysrhythmias, venous thromboembolism, other cardiac disorders, and cerebrovascular diseases, respectively], and lower risk of respiratory diseases such as pneumonia, other acute lower respiratory infections, asthma, and hypoxemia [HR: 0.302 (95 % CI: 0.273–0.333), 0.811 (0.686–0.958), 0.791 (0.735–0.850), and 0.392 (0.338–0.455), respectively]. The vaccinated reinfection cohort showed no significant differences in medical utilization, circulatory diseases, or respiratory conditions but had a higher risk of breathing abnormalities. breathing abnormalities [HR: 1.195 (95 % CI:1.087–1.313)].</div></div><div><h3>Conclusions</h3><div>The individuals who experienced reinfection exhibited milder short-term sequelae in the circulatory and respiratory systems. Vaccine administration protects against cardiovascular or respiratory systems.</div></div>","PeriodicalId":16087,"journal":{"name":"Journal of Infection and Public Health","volume":"18 1","pages":"Article 102599"},"PeriodicalIF":4.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Exploring the genomic potential of Kytococcus schroeteri for antibacterial metabolites against multi-drug resistant Mycobacterium tuberculosis 探索雪腐镰刀菌的基因组潜力,寻找抗耐多药结核分枝杆菌的抗菌代谢物
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-19 DOI: 10.1016/j.jiph.2024.102598
Fatiha Khan , Deng Li , Iqra Ahmad , Sumra Wajid Abbasi , Umar Nishan , Sheheryar Sheheryar , Arlindo Alencar Moura , Riaz Ullah , Mohamed A. Ibrahim , Mohibullah Shah , Wangshu Li
The versatile bacterium Kytococcus schroeteri is known for producing putative secondary metabolites. These include antimicrobials and other therapeutically significant compounds. The emergence of antibiotic-resistant pathogens has necessitated the exploration of possible sources for novel drug candidates. This study focuses on the genome mining of Kytococcus schroeteri to explore its secondary metabolites through biosynthetic gene clusters. It analyzes their drug-like properties through in-silico methods and evaluates their potential as antimicrobial agents. Eight biosynthetic gene clusters were identified in two strains (H01 and UMB1298) of this bacterium. Among the unique 49 metabolites from these clusters, 13 metabolites were selected according to the Lipinski rule of five. Physiochemical properties, pharmacokinetic analysis, toxicity profiles, and human target predictions of these metabolites were performed, and they were examined for crucial interactions with M. tuberculosis’s RpfB protein, the causative agent of latent tuberculosis. All metabolites were predicted to be non-toxic and did not inhibit any human proteins. Several metabolites, including a subset of brasilanes, exhibited both low acute toxicity and promising interactions with GLU292, the critical residue of the RpfB protein. The interaction affinity of the ligands with RpfB was validated by subjecting one of the complexes to a 100 ns MD simulation. The RMSD, RMSF, and binding energy calculations indicated a stable interaction of the ligand with the receptor protein, which raised the possibility of novel drugs to combat antibiotic resistance. The putative metabolites identified in this study not only exhibit molecular properties but also possess characteristics that support physiological compatibility. It also heightens their potential effectiveness as therapeutic antibacterial alternates. The experimental validation of our computational results may open an avenue to explore the potential of K. schroeteri for producing novel compounds to combat the antibiotic resistance in M. tuberculosis.
多用途裂殖酸球菌(Kytococcus schroeteri)以产生推测的次级代谢物而闻名。其中包括抗菌素和其他具有治疗意义的化合物。抗生素耐药性病原体的出现使得人们有必要探索新型候选药物的可能来源。本研究的重点是挖掘 schroeteri 葡萄球菌的基因组,通过生物合成基因簇探索其次生代谢物。研究通过硅内方法分析了这些次生代谢物的类药物特性,并评估了它们作为抗菌剂的潜力。在该细菌的两个菌株(H01 和 UMB1298)中发现了八个生物合成基因簇。在这些基因簇中独特的 49 种代谢物中,根据利平斯基五选一规则选出了 13 种代谢物。研究人员对这些代谢物的理化性质、药代动力学分析、毒性特征和人体靶标进行了预测,并研究了它们与结核杆菌的 RpfB 蛋白(潜伏结核病的致病因子)之间的关键相互作用。据预测,所有代谢物都是无毒的,不会抑制任何人类蛋白质。几种代谢物(包括一部分巴西兰)显示出较低的急性毒性,并有望与 RpfB 蛋白的关键残基 GLU292 发生相互作用。通过对其中一种复合物进行 100 ns MD 模拟,验证了配体与 RpfB 的相互作用亲和力。RMSD、RMSF和结合能计算结果表明,配体与受体蛋白之间存在稳定的相互作用,这为开发抗生素耐药性新药提供了可能。本研究发现的假定代谢物不仅具有分子特性,还具有支持生理兼容性的特征。这也提高了它们作为治疗性抗菌替代品的潜在有效性。对我们的计算结果进行实验验证,可能会为探索 K. schroeteri 生产新型化合物的潜力开辟一条途径,以对抗结核杆菌的抗生素耐药性。
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引用次数: 0
Silent public threat: Crimean-Congo hemorrhagic fever outbreak spikes during Eid-al-Adha in Afghanistan (Reported cases to National Surveillance System, 2015-2024) 无声的公共威胁:阿富汗宰牲节期间克里米亚-刚果出血热疫情激增(向国家监测系统报告的病例,2015-2024 年)
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-17 DOI: 10.1016/j.jiph.2024.102591
Enayatullah Hamdard , Ahmadullah Zahir , Babrak Karwand , Zabih Ullah Nazari , Fangxiong Shi

Background

Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne viral disease with a Case Fatality Ratio (CFR) of 10–40 %. It spreads from livestock to humans primarily through tick bites. It is crucial to monitor the peak months of this endemic disease in Afghanistan. Currently, the country is grappling with a potential national outbreak of CCHF, facing limitations in both diagnostic and preventive measures. Therefore, this study aims to describe CCHF prevalence during spike months (June-September) from 2015 to 2024, coinciding with Eid-al-Adha, and assess CCHF familiarity among inhabitants in eight regions of Afghanistan.

Method

We have analyzed the National Surveillance System data (2015–2024) on retrospective basis. A structured questionnaire was developed to assess CCHF knowledge among inhabitants of eight regions. Data analysis included percentages, frequencies, chi-square tests, using SPSS and power BI.

Results

The national surveillance system recorded 1796 CCHF confirmed cases with 238 deaths during spike months from 2015 to 2024. The highest number of Reported cases was in 2023 (734 cases, 78 deaths), followed by 2022 (221 cases). During Eid-al-Adha months from 2015 to 2024, there were 804 CCHF cases and 176 deaths, with the most in 2023 (313 cases, 78 deaths) and the fewest in 2015 (7 cases, 2 deaths).
A survey of 1440 inhabitants (80 % male, 20 % female) across eight regions of Afghanistan showed knowledge of CCHF varied within regions. Correct responses were highest in the central region (394/815), followed by north (336/760). Incorrect responses were highest in central highlands (1039/1440), followed by west (450/881), indicating limited knowledge despite annual spikes in cases.

Conclusion

The surge in CCHF outbreaks during Eid-al-Adha in Afghanistan underscores the challenge posed by limited knowledge of the disease. Uncontrolled animal movement and self-slaughter during Eid festival emphasize the urgent need for targeted public health strategies by relevant ministries.
背景克里米亚-刚果出血热(CCHF)是一种蜱媒病毒性疾病,病死率(CFR)为 10-40%。它主要通过蜱虫叮咬从牲畜传播给人类。监测这种地方病在阿富汗的高峰期至关重要。目前,阿富汗正在努力应对可能爆发的全国性 CCHF疫情,在诊断和预防措施方面都面临着限制。因此,本研究旨在描述 2015 年至 2024 年与宰牲节同时的尖峰月份(6 月至 9 月)的 CCHF 流行情况,并评估阿富汗 8 个地区居民对 CCHF 的熟悉程度。我们编制了一份结构化问卷,以评估八个地区居民对儿童疾病防治知识的了解程度。数据分析包括使用 SPSS 和 power BI 进行的百分比、频率和卡方检验。结果国家监测系统在 2015 年至 2024 年期间的尖峰月份中记录了 1796 例 CCHF 确诊病例和 238 例死亡病例。报告病例数最多的是 2023 年(734 例,78 例死亡),其次是 2022 年(221 例)。在 2015 年至 2024 年的宰牲节期间,共有 804 例慢性阻塞性肺疾病病例和 176 例死亡病例,其中 2023 年的病例数最多(313 例,78 例死亡),2015 年最少(7 例,2 例死亡)。对阿富汗 8 个地区的 1440 名居民(80% 为男性,20% 为女性)进行的调查显示,各地区对慢性阻塞性肺疾病的了解程度各不相同。回答正确率最高的是中部地区(394/815),其次是北部地区(336/760)。错误回答最多的地区是中部高地(1039/1440),其次是西部(450/881),这表明尽管每年病例激增,但人们对该疾病的了解仍然有限。开斋节期间不受控制的动物移动和自宰行为突出表明,相关部委迫切需要制定有针对性的公共卫生战略。
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引用次数: 0
Unraveling influenza sentinel surveillance in Pakistan 2008-2024: Epidemiological insights during the pre and post pandemic period of COVID-19 解读 2008-2024 年巴基斯坦流感哨点监测:COVID-19 大流行前后的流行病学见解。
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-16 DOI: 10.1016/j.jiph.2024.102595
Nazish Badar , Muhammad Salman , Nadia Nisar , Hamza Ahmed Mirza , Abdul Ahad , Faisal Ahmad , Bisma Daud

Background

The coronavirus pandemic has substantially influenced the transmission pattern of other respiratory viruses. However, screening and detecting other respiratory pathogens was unheeded during this time to combat the COVID-19 pandemic. High virulence and re assortment factors intensify the importance of influenza virus surveillance for effective disease management. Therefore, the present surveillance study was designed to determine the influenza positivity rate from 2008–24. This study will provide integral support in depicting a panoramic representation of two respiratory-pandemic periods, 2010–11 and 2019–2021, for influenza and COVID-19 pandemics, respectively.

Methods

An inferential cross-sectional study was conducted from 2008 to 2024 by collecting influenza surveillance data from twelve sentinel sites in Pakistan. Clinical and demographic data was recorded at sample collection time. Specimens were collected through nasopharyngeal/throat swabs and stored in viral transport medium (VTM) at the sentinel site laboratory at 2‐4 °C. Viral RNA was isolated from the samples using KingFisher TM Flex Purification System and MagMAX™ Viral/Pathogen Nucleic Acid Extraction Kit.

Results

Within 16 years, 78118 samples were tested for influenza, of which 7999 (10.2 %) appeared positive. The positivity rate appeared very low in recent years, with only a 3.5 % positivity rate observed in 2020. Influenza A strain H1N1pdm09 seemed to be the prominent strain (n = 3407, 42.6 %), followed by influenza B (n = 2125, 26.6 %). Conclusion: The positivity of influenza samples was 10.2 % and recorded in patients where typical clinical representation of influenza was absent. Fewer samples were reported during the coronavirus pandemic, which might be because influenza screening was hindered and overlooked to combat the SARS-CoV-2 virus, and the patient threshold was very high for COVID-19 virus screening.
背景:冠状病毒大流行极大地影响了其他呼吸道病毒的传播模式。然而,在应对 COVID-19 大流行期间,对其他呼吸道病原体的筛查和检测却未受到重视。高致病性和再变异因素加剧了流感病毒监测对有效控制疾病的重要性。因此,本监测研究旨在确定 2008-24 年期间的流感阳性率。这项研究将为描绘 2010-11 年和 2019-2021 年两个呼吸道大流行期(分别为流感和 COVID-19 大流行期)的全景提供不可或缺的支持:方法:通过收集巴基斯坦 12 个哨点的流感监测数据,开展了一项从 2008 年到 2024 年的推论性横断研究。样本采集时记录了临床和人口统计学数据。样本通过鼻咽/喉拭子采集,并储存在病毒运输培养基(VTM)中,存放在 2-4 °C的哨点实验室。使用 KingFisher TM Flex 净化系统和 MagMAX™ 病毒/病原体核酸提取试剂盒从样本中分离病毒 RNA:16 年间,共检测了 78118 份流感样本,其中 7999 份(10.2%)呈阳性。近几年的阳性率非常低,2020 年的阳性率仅为 3.5%。甲型流感菌株 H1N1pdm09 似乎是主要的菌株(n = 3407,42.6%),其次是乙型流感(n = 2125,26.6%):流感样本的阳性率为 10.2%,并且记录在没有典型流感临床表现的患者中。冠状病毒大流行期间报告的样本较少,这可能是因为流感筛查因抗击 SARS-CoV-2 病毒而受到阻碍和忽视,而且 COVID-19 病毒筛查的患者门槛非常高。
{"title":"Unraveling influenza sentinel surveillance in Pakistan 2008-2024: Epidemiological insights during the pre and post pandemic period of COVID-19","authors":"Nazish Badar ,&nbsp;Muhammad Salman ,&nbsp;Nadia Nisar ,&nbsp;Hamza Ahmed Mirza ,&nbsp;Abdul Ahad ,&nbsp;Faisal Ahmad ,&nbsp;Bisma Daud","doi":"10.1016/j.jiph.2024.102595","DOIUrl":"10.1016/j.jiph.2024.102595","url":null,"abstract":"<div><h3>Background</h3><div>The coronavirus pandemic has substantially influenced the transmission pattern of other respiratory viruses. However, screening and detecting other respiratory pathogens was unheeded during this time to combat the COVID-19 pandemic. High virulence and re assortment factors intensify the importance of influenza virus surveillance for effective disease management. Therefore, the present surveillance study was designed to determine the influenza positivity rate from 2008–24. This study will provide integral support in depicting a panoramic representation of two respiratory-pandemic periods, 2010–11 and 2019–2021, for influenza and COVID-19 pandemics, respectively.</div></div><div><h3>Methods</h3><div>An inferential cross-sectional study was conducted from 2008 to 2024 by collecting influenza surveillance data from twelve sentinel sites in Pakistan. Clinical and demographic data was recorded at sample collection time. Specimens were collected through nasopharyngeal/throat swabs and stored in viral transport medium (VTM) at the sentinel site laboratory at 2‐4 °C. Viral RNA was isolated from the samples using KingFisher TM Flex Purification System and MagMAX™ Viral/Pathogen Nucleic Acid Extraction Kit.</div></div><div><h3>Results</h3><div>Within 16 years, 78118 samples were tested for influenza, of which 7999 (10.2 %) appeared positive. The positivity rate appeared very low in recent years, with only a 3.5 % positivity rate observed in 2020. Influenza A strain H1N1pdm09 seemed to be the prominent strain (n = 3407, 42.6 %), followed by influenza B (n = 2125, 26.6 %). Conclusion: The positivity of influenza samples was 10.2 % and recorded in patients where typical clinical representation of influenza was absent. Fewer samples were reported during the coronavirus pandemic, which might be because influenza screening was hindered and overlooked to combat the SARS-CoV-2 virus, and the patient threshold was very high for COVID-19 virus screening.</div></div>","PeriodicalId":16087,"journal":{"name":"Journal of Infection and Public Health","volume":"17 12","pages":"Article 102595"},"PeriodicalIF":4.7,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142693109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Emergence of multidrug-resistant E. coli ST8346 isolates carrying three distinct plasmids with NDM-5, KPC-2, and OXA-181 出现携带 NDM-5、KPC-2 和 OXA-181 三种不同质粒的耐多药大肠杆菌 ST8346 分离物。
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-16 DOI: 10.1016/j.jiph.2024.102596
Ping-Yuan Chen , Yu-Chin Chen , Che-Ming Chiang , Chi-Chung Chen , Chih-Cheng Lai , Chia-Hung Tsai , Chung-Han Ho , Po-Yu Chen , Hung-Jen Tang , Julie Chi Chow , Tu-Hsuan Chang

Background

E. coli ST8346 is a unique strain associated with the potential carriage of multiple carbapenemases. Three unique E. coli ST8346 isolates were identified, each concurrently harboring multiple carbapenemases, including blaNDM-5, blaKPC-2, and/or blaOXA-181. This study aimed to characterize the genetic and plasmid structures of these isolates to understand their transmission and resistance mechanisms.

Methods

Antibiotic resistance profiles, genetic relatedness, and plasmid structures were determined using antibiotic susceptibility testing, multilocus sequence typing (MLST), pulsed-field gel electrophoresis (PFGE), S1 nuclease PFGE, and long-read sequencing.

Results

All the strains were carbapenem resistant. PFGE revealed close genetic relationships among the isolates, despite the lack of geographical or epidemiological connections. blaNDM-5, blaKPC-2, and blaOXA-181 were located on separate plasmids. Plasmids harboring blaNDM-5 showed genetic similarities to blaNDM-5-bearing IncF plasmids in the United Kingdom. The IncA/C plasmids harboring blaKPC-2 had identical sequences resembling a plasmid from a K. pneumoniae strain in Taiwan, except for the blaKPC-2 region, which matched a strain from China, indicating a hybrid plasmid.

Conclusion

This study is the first to identify and characterize the coexistence of blaNDM-5, blaKPC-2, and blaOXA-181 in E. coli ST8346 isolates. The spread appears to be due to independent acquisition events. We identified the putative origins of these plasmids and detected a possible recombination event in a novel IncA/C plasmid. These findings emphasize the importance of ongoing surveillance and further investigations.
背景:大肠杆菌 ST8346 是一种可能携带多种碳青霉烯酶的独特菌株。已鉴定出三种独特的大肠杆菌 ST8346 分离物,每种分离物都同时携带多种碳青霉烯酶,包括 blaNDM-5、blaKPC-2 和/或 blaOXA-181。本研究旨在描述这些分离株的基因和质粒结构,以了解其传播和耐药机制:方法:采用抗生素敏感性测试、多焦点序列分型(MLST)、脉冲场凝胶电泳(PFGE)、S1核酸酶PFGE和长线程测序确定抗生素耐药性特征、遗传亲缘关系和质粒结构:结果:所有菌株均对碳青霉烯类耐药。PFGE显示,尽管缺乏地理或流行病学联系,但分离株之间的遗传关系密切。blaNDM-5、blaKPC-2和blaOXA-181分别位于不同的质粒上。携带 blaNDM-5 的质粒与英国携带 blaNDM-5 的 IncF 质粒具有遗传相似性。携带 blaKPC-2 的 IncA/C 质粒与台湾一株肺炎克氏菌的质粒序列相同,但 blaKPC-2 区域与中国的一株菌株相吻合,表明这是一种杂交质粒:本研究首次发现并描述了大肠杆菌 ST8346 分离物中 blaNDM-5、blaKPC-2 和 blaOXA-181 共存的现象。这种传播似乎是由于独立的获得事件造成的。我们确定了这些质粒的可能来源,并检测到新型 IncA/C 质粒中可能存在重组事件。这些发现强调了持续监控和进一步调查的重要性。
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引用次数: 0
Monkeypox Global Research: A Comprehensive Analysis from Emergence to Present (1961-2023) for innovative prevention and control approaches 猴痘全球研究:从出现到现在(1961-2023)对创新预防和控制方法的综合分析
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-15 DOI: 10.1016/j.jiph.2024.102593
Nader Kameli , Abdullah Algaissi , Manal Mohamed Elhassan Taha , Edrous Alamer , Abdulaziz Alhazmi , Waleed Hakami , Badreldin S. Rahama , Anwar M. Hashem , Siddig Ibrahim Abdelwahab
The current study aims to identify research hotspots and trends in Monkeypox (MPX). A total of 2655 MPX-related articles published from 1961 to 2023 were extracted from the Scopus database. Data were analyzed using Scopus Analytics, Microsoft Excel, Bibliometrix, and VOSviewer. The number of MPX papers has been increasing annually, particularly since the most recent outbreak. The United States and India have been productive in this area. The most cited and productive scholar in the field is Inger K. Damon. The MPX research theme map shows clusters with various centralities and densities, focusing on deep learning, molecular docking, and orthopoxviruses. Over the last decade, key terms include "transmission," "pandemic," "deep learning," "docking," "Democratic Republic of Congo," "Ebola," "virulence," "modified vaccinia Ankara," and "orthopoxvirus." Researchers can utilize existing findings to steer future research on this illness, prepare for potential pandemics, and address bioterrorist threats.
本研究旨在确定猴痘(MPX)的研究热点和趋势。从Scopus数据库中提取1961 - 2023年间发表的2655篇mpx相关文章。数据分析使用Scopus Analytics、Microsoft Excel、Bibliometrix和VOSviewer。MPX论文的数量每年都在增加,特别是自最近一次爆发以来。美国和印度在这一领域卓有成效。该领域被引用次数最多、研究成果最多的学者是Inger K. Damon。MPX研究主题地图显示了不同中心性和密度的集群,重点是深度学习、分子对接和正痘病毒。在过去的十年里,关键词包括“传播”、“大流行”、“深度学习”、“对接”、“刚果民主共和国”、“埃博拉”、“毒性”、“改良安卡拉牛痘”和“正痘病毒”。研究人员可以利用现有的发现来指导未来对这种疾病的研究,为潜在的流行病做准备,并应对生物恐怖主义威胁。
{"title":"Monkeypox Global Research: A Comprehensive Analysis from Emergence to Present (1961-2023) for innovative prevention and control approaches","authors":"Nader Kameli ,&nbsp;Abdullah Algaissi ,&nbsp;Manal Mohamed Elhassan Taha ,&nbsp;Edrous Alamer ,&nbsp;Abdulaziz Alhazmi ,&nbsp;Waleed Hakami ,&nbsp;Badreldin S. Rahama ,&nbsp;Anwar M. Hashem ,&nbsp;Siddig Ibrahim Abdelwahab","doi":"10.1016/j.jiph.2024.102593","DOIUrl":"10.1016/j.jiph.2024.102593","url":null,"abstract":"<div><div>The current study aims to identify research hotspots and trends in Monkeypox (MPX). A total of 2655 MPX-related articles published from 1961 to 2023 were extracted from the Scopus database. Data were analyzed using Scopus Analytics, Microsoft Excel, Bibliometrix, and VOSviewer. The number of MPX papers has been increasing annually, particularly since the most recent outbreak. The United States and India have been productive in this area. The most cited and productive scholar in the field is Inger K. Damon. The MPX research theme map shows clusters with various centralities and densities, focusing on deep learning, molecular docking, and orthopoxviruses. Over the last decade, key terms include \"transmission,\" \"pandemic,\" \"deep learning,\" \"docking,\" \"Democratic Republic of Congo,\" \"Ebola,\" \"virulence,\" \"modified vaccinia Ankara,\" and \"orthopoxvirus.\" Researchers can utilize existing findings to steer future research on this illness, prepare for potential pandemics, and address bioterrorist threats.</div></div>","PeriodicalId":16087,"journal":{"name":"Journal of Infection and Public Health","volume":"18 1","pages":"Article 102593"},"PeriodicalIF":4.7,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Surging antimicrobial resistance mortality rates in Africa: Spotlight on antibiotic misuse in Nigeria 非洲抗生素耐药性死亡率激增:聚焦尼日利亚的抗生素滥用问题
IF 4.7 3区 医学 Q1 INFECTIOUS DISEASES Pub Date : 2024-11-13 DOI: 10.1016/j.jiph.2024.102594
Oche Joseph Otorkpa, Onifade Adefunmilola Adebola , Chinenye Oche Otorkpa
{"title":"Surging antimicrobial resistance mortality rates in Africa: Spotlight on antibiotic misuse in Nigeria","authors":"Oche Joseph Otorkpa,&nbsp;Onifade Adefunmilola Adebola ,&nbsp;Chinenye Oche Otorkpa","doi":"10.1016/j.jiph.2024.102594","DOIUrl":"10.1016/j.jiph.2024.102594","url":null,"abstract":"","PeriodicalId":16087,"journal":{"name":"Journal of Infection and Public Health","volume":"18 1","pages":"Article 102594"},"PeriodicalIF":4.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
期刊
Journal of Infection and Public Health
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