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Relationship Between Climate Change and Marmot Plague of Marmota himalayana Plague Focus—the Altun Mountains of the Qinghai-Xizang Plateau,China,2000–2022

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China CDC weekly 2024年第4期6卷 69-74,I0006页

作者： Qun Duan Xiaojin Zheng Zhiqiang Gan Dongyue Lyu Hanyu Sha Xinmin Lu Xiaoling Zhao Asaiti Bukai Ran Duan Shuai Qin Li Wang Jinxiao Xi Di Wu Peng Zhang Deming Tang Zhaokai He Huaiqi Jing biao kan Xin Wang National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina Akesai Kazak Autonomous County Center for Disease Control and Prevention Jiuquan CityGansu ProvinceChina Jiuquan Center for Disease Control and Prevention Jiuquan CityGansu ProvinceChina Gansu Provincial Center for Disease Control and Prevention Lanzhou CityGansu ProvinceChina

Introduction:Plague is a zoonotic disease that occurs naturally in specific geographic *** change can influence the populations of the plague host or vector,leading to variations in the occurrence and epidemiology of plague in ***:In this study,we collected meteorological and plague epidemiological data from the Marmota himalayana plague focus in the Altun Mountains of the Qinghai-Xizang *** data spanned from 2000 to *** describe the climatic factors and plague epidemic conditions and we describe their analysis by Pearson’s ***:During the period from 2000 to 2022,the isolation rates of Yersinia pestis(***)from marmots and fleas were 9.27%(451/4,864)and 7.17%(118/1,646),***,we observed a positive rate of F1 antibody of 11.25%(443/3,937)in marmots and 18.16%(142/782)in *** regards to climate,there was little variation,and a decreasing trend in blowing-sand days was *** temperature in the previous year showed a negative correlation with the *** isolation rate in marmots(r=−0.555,P=0.011)and the positive rate of F1 antibody in marmots(r=−0.552,P=0.012)in the current *** average annual precipitation in the previous two years showed a positive correlation with marmot density(r=0.514,P=0.024),while blowingsand days showed a negative correlation with marmot density(r=−0.701,P=0.001).Furthermore,the average annual precipitation in the previous three years showed a positive correlation with the isolation rate of *** from marmots(r=0.666,P=0.003),and blowing-sand days showed a negative correlation with marmot density(r=−0.597,P=0.009).Conclusions:The findings of this study indicate that there is a hysteresis effect of climate change on the prevalence of ***,monitoring climate conditions can offer significant insights for implementing timely preventive and control measures to combat plague epidemics.

关键词： Plague epidemiology Plateau

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道阻且长——鼠疫在当今社会的流行与防控

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中国热带医学 2024年第1期24卷 22-27,48页

作者：王鑫景怀琦阚飙中国疾病预防控制中心传染病预防控制所北京102206

鼠疫是由鼠疫耶尔森菌感染导致的动物源性传染病,也是我国法定报告甲类传染病和国际检疫传染病。在人类历史上曾经发生过3次世界大流行,当前除南极洲和大洋洲外,各大陆均存在鼠疫自然疫源地。马达加斯加和刚果(金)是目前世界上人间鼠疫... 详细信息

鼠疫是由鼠疫耶尔森菌感染导致的动物源性传染病,也是我国法定报告甲类传染病和国际检疫传染病。在人类历史上曾经发生过3次世界大流行,当前除南极洲和大洋洲外,各大陆均存在鼠疫自然疫源地。马达加斯加和刚果(金)是目前世界上人间鼠疫流行水平最高的地区。在20世纪中期,我国人间鼠疫流行,1950—1954年平均年报告1400.8例;1955年后,我国人间鼠疫的大规模暴发得到有效控制,1955—1999年平均年报告24.7例。2000年至今,我国人间鼠疫病例仍未销声匿迹,期间累计报告514例。基于One Health理念的鼠疫控制策略是一种更优解,主要体现为“生态学动物监测”+“人间早期诊断处置”的双重手段。有效的动物监测,对鼠疫波及人间可进行准确预测,做到早期预警;而对人间鼠疫病例进行早期诊断早期处置,在一方面可以有效控制人间疫情扩散,另一方面也能有效降低病死率。

关键词：鼠疫人间病例流行动物监测

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Performing Laboratory Network Surveillance to Monitor the Emergence and Spread of Infectious Diseases

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China CDC weekly 2022年第12期4卷 233-234页

作者： biao kan National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina State Key Laboratory of Infectious Disease Prevention and Control BeijingChina

Laboratory systems are one of the pillars in the infrastructure for infectious disease control and prevention——surveillance,early warning,and emergency response capacities are a priority to public *** based monitoring provides essential support for infection diagnosis,pathogen identification,spread tracking,and outbreak warning,especially for emerging infections caused by newly recognized pathogens and clusters of unknown diseases.

关键词： Laboratory prevention diagnosis

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The Establishment and Application of a Kraken Classifier for Salmonella Plasmid Sequence Prediction

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China CDC weekly 2022年第49期4卷 1110-1116页

作者： Zhenpeng Li Bo Pang Xin Lu biao kan State Key Laboratory of Infectious Disease Prevention and Control National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing MunicipalityChina School of Public Health Shandong UniversityJinan CityChina.

Introduction:Salmonella is a key intestinal pathogen of foodborne disease,and the plasmids in Salmonella are related to many biological characteristics,including virulence and drug resistance.A large number of plasmid contigs have been sequenced in bacterial draft genomes,however,these are often difficult to distinguish from chromosomal ***:In this study,three different customized Kraken databases were used to build three different Kraken *** genome benchmark datasets and simulated draft genome benchmark datasets were ***-fold cross-validation was used to evaluate the performance of the three different Kraken classifiers by two benchmark ***:The predictive performance of the classifier based on all National Center for Biotechnology Information plasmids and Salmonella complete genomes was *** optimal Kraken classifier was performed with Salmonella isolated in *** plasmid carrying rate of Salmonella in China is 91.01%,and it was found that the Kraken classifier could find more plasmid contigs and antibiotic resistance genes(ARGs)than results derived from a plasmid replicon-based method(PlasmidFinder).Moreover,it was found that in the strains carrying ARGs,plasmids carried more ARGs[three,95%confidence interval(CI):1–14]than chromosomes(one,95%CI:1–7).Discussion:We found building a high-quality customized database as a Kraken classifier to be ideal for the prediction of Salmonella plasmid sequences from bacterial draft *** the future,the Kraken classifier established in this study will play a significant role in ARG monitoring.

关键词： classifier database Application

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2017-2022年全国斑疹伤寒流行特征分析

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疾病监测 2024年第5期39卷 565-570页

作者：张云飞韩玲师悦田雪莹徐红耿梦杰滕中秋阚飙秦天中国疾病预防控制中心传染病预防控制所传染病溯源预警与智能决策国家重点实验室北京102206 中国疾病预防控制中心传染病溯源预警与智能决策国家重点实验室北京102206 山东省疾病预防控制中心山东济南250014 南宁市疾病预防控制中心广西南宁530023

目的分析我国2017—2022年斑疹伤寒流行特征,为制定斑疹伤寒防控策略提供科学依据。方法通过中国疾病预防控制信息系统传染病报告信息管理系统收集全国各省(自治区、直辖市)2017—2022年斑疹伤寒监测个案数据,运用描述流行病学方法进行... 详细信息

目的分析我国2017—2022年斑疹伤寒流行特征,为制定斑疹伤寒防控策略提供科学依据。方法通过中国疾病预防控制信息系统传染病报告信息管理系统收集全国各省(自治区、直辖市)2017—2022年斑疹伤寒监测个案数据,运用描述流行病学方法进行分析。结果2017—2022年全国每年报告病例数(发病率)分别为929例(0.07/10万)、971例(0.07/10万)、1173例(0.08/10万)、1069例(0.08/10万)、1310例(0.09/10万)、1291例(0.09/10万),报告病例数及发病率呈波动增加趋势。2017—2022年每年有22~24个省份[309~342个县(区)]报告病例,主要分布于云南、广东、四川、安徽、湖北、山东、广西、湖南、河北9个省份(自治区),9个省份(自治区)每年合计报告病例数占全国病例数比例波动于85.56%~91.14%,其中云南、安徽、湖北省每年报告病例数及占全国报告病例数比例均呈增加趋势,山东省呈下降趋势。全国每年报告病例居前10位县(区)合计报告病例数(占全国病例数比例)分别为293例(31.53%)、284例(29.25%)、332例(28.30%)、400例(37.42%)、579例(44.20%)、636例(49.26%)。职业分布主要为农民、学生、散居儿童及幼托儿童,每年占报告病例数的比例分别波动于61.04%~65.60%、10.71%~15.43%、7.67%~9.80%。男女性别比波动于0.86∶1~1.02∶1之间。每年报告病例均以40~64岁年龄组病例占比最高,波动于38.54%~43.69%。结论2017—2022年每年报告斑疹伤寒病例数居前的省份均为云南、安徽、广东、广西、四川、湖北、湖南、河北、山东9省份(自治区),每年合计报告病例数占全国病例数均在85.00%以上,云南、湖北、安徽省每年报告病例数呈增加趋势。病例高度散发与局部高发并存。应动态开展疫情分析、风险评估及预警,加强重点地区、重点人群综合防控措施,进一步降低居民感染风险。

关键词：斑疹伤寒流行特征风险评估防控策略

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Trans-Regional and Cross-Host Spread of mcr-Carrying Plasmids Revealed by Complete Plasmid Sequences——44 Countries,1998−2020

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China CDC weekly 2022年第12期4卷 242-248,I0001-I0004页

作者： Zhe Li Zhenpeng Li Yao Peng Xin Lu biao kan State Key Laboratory of Infectious Disease Prevention and Control/National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Background:The surveillance of antimicrobial resistance genes(ARGs)and bacteria is one critical approach to prevent and control antimicrobial resistance(AMR).Next-generation sequencing(NGS)is a powerful tool in monitoring the emergence and spread of ARGs and resistant *** horizontal transfer of ARGs across host bacteria mediated by plasmids is a challenge in NGS surveillance for resistance because short-read sequencing can hardly generate the complete plasmid genome sequence,and the correlation between ARGs and plasmids are difficult to ***:The complete genome sequences of 455 mcr-carrying plasmids(pMCRs),and the data of their host bacteria and isolation regions were collected from the NCBI *** of Inc types and ARGs were searched for each *** genome similarity of these plasmids was analyzed by pangenome clustering and genome ***:A total of 52 Inc types,including a variety of fusion plasmids containing 2 or more Inc types were identified in these pMCRs and carried by complex host *** cooccurrence of ARGs in pMCRs was generally observed,with an average of 3.9 ARGs per ***-two clusters with consistent or highly similar sequences and gene compositions were identified by the pangenome clustering,which were characterized with distributions in different countries/regions,years or host bacteria in each ***:Based on the complete plasmid sequences,distribution of mcr genes in different Inc type plasmids,their co-existence with other AMRs,and transmission of one pMCR across regions and host bacteria can be revealed *** plasmid genomes and comparisons in the laboratory network are necessary for spread tracing of ARG-carrying plasmids and risk assessment in AMR surveillance.

关键词： sequences resistance Host

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2021-2022年广西壮族自治区玉林市服务行业从业人员携带沙门菌的流行特征及影响因素分析

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疾病监测 2024年第4期39卷 451-456页

作者：田霁月王梦玉彭遥周昶宇夏樱花吴炎农卢昕罗铭阚飙山东大学公共卫生学院山东济南250012 中国疾病预防控制中心传染病预防控制所传染病溯源预警与智能决策全国重点实验室北京102206 玉林市疾病预防控制中心广西玉林537000

目的获得2021—2022年广西壮族自治区玉林市服务行业从业人员中具有不同食品接触暴露程度的人员携带沙门菌的流行病学特征,探讨人口学和季节气温等因素的关联性,为健康人群预防沙门菌感染与传播的干预提供依据。方法采集2021—2022年玉... 详细信息

目的获得2021—2022年广西壮族自治区玉林市服务行业从业人员中具有不同食品接触暴露程度的人员携带沙门菌的流行病学特征,探讨人口学和季节气温等因素的关联性,为健康人群预防沙门菌感染与传播的干预提供依据。方法采集2021—2022年玉林市参加健康体检的服务行业从业人员肛拭子样本并进行沙门菌的分离培养和鉴定,采用χ2检验和趋势χ2检验分析参加健康体检的不同食品暴露程度服务行业从业人员沙门菌检出率,采用相关与回归分析不同食品暴露程度服务行业从业人员沙门菌检出率与气温关系,采用多因素logistic回归模型分析不同食品暴露程度服务行业从业人员沙门菌检出的影响因素。结果2021—2022年玉林市参加健康体检的服务行业从业人员沙门菌检出率为1.86%,按照工种接触食品原料的频繁程度分为3个组,共纳入50924人。从事食品加工、食品销售和公共服务的3个组沙门菌分离阳性率分别为2.17%、1.71%和1.48%,总体上随接触程度的下降、沙门菌携带率也下降。单因素分析显示,服务行业从业人员沙门菌检出率在性别、年龄、职业、季节因素中存在差异。在服务行业从业人员中随着年龄增加,沙门菌检出率呈上升趋势。不同食品暴露程度各组服务人员多因素logistic回归分析显示,男性、高年龄组和季节是食品加工服务人员沙门菌检出率高的影响因素,高年龄组和季节是食品销售服务人员沙门菌检出率高的影响因素,男性和季节是导致公共场所服务人员沙门菌检出率高的影响因素。结论2021—2022年玉林市参加健康体检的服务行业从业人员沙门菌携带率较高,这些人员携带沙门菌在季节分布、人群分布等方面具有明显的流行病学特征。接触食品材料频度高的人群更容易携带沙门菌,是沙门菌从动物养殖和食品进入人群的重要群体,应该继续加强对服务业从业人员尤其食品加工行业人员的健康监测和健康干预,减少病原体自养殖动物和食品进入人群的概率,并进一步提高食品安全隐患的早期识别与预警。

关键词：沙门菌服务行业从业人员食品暴露程度流行特征影响因素

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Protein Containing the GGDEF Domain Affects Motility and Biofilm Formation in Vibrio cholerae and is Negatively Regulated by Fur and HapR

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Biomedical and Environmental Sciences 2023年第10期36卷 949-958页

作者： GAO He MA Li Zhi QIN Qin CUI Yao MA Xiao Han ZHANG Yi Quan kan biao State Key Laboratory of Infectious Disease Prevention and Control National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Medical Risk Management Section Third Medical CentreChinese PLA(People’s Liberation Army)General HospitalBeijing 100039China Department of Clinical Laboratory Affiliated Nantong Hospital 3 of Nantong UniversityNantong Third People's HospitalNantong 226006JiangsuChina 3.Department of Clinical LaboratoryAffiliated Nantong Hospital 3 of Nantong UniversityNantong Third People's Hospital

Objective This study aimed to investigate whether the VCA0560 gene acts as an active diguanylate cyclase(DGC)in Vibrio cholerae and how its transcription is regulated by Fur and Hap *** The roles of VCA0560 was investigated by utilizing various phenotypic assays,including colony morphological characterization,crystal violet staining,Cyclic di-GMP(c-di-GMP)quantification,and swimming motility *** regulation of the VCA0560 gene by Fur and Hap R was analyzed by luminescence assay,electrophoretic mobility shift assay,and DNase I *** VCA0560 gene mutation did not affect biofilm formation,motility,and c-di-GMP synthesis in ***,and its overexpression remarkably enhanced biofilm formation and intracellular c-di-GMP level but reduced motility *** transcription of the VCA0560 gene was directly repressed by Fur and the master quorum sensing regulator Hap *** Overexpressed VCA0560 functions as an active DGC in ***,and its transcription is repressed by Fur and Hap R.

关键词： Vibrio cholera Cyclic di-GMP VCA0560 Fur HapR

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Chinese Pathogen Identification Net:A Laboratory Network for Surveillance and Response of Bacterial Infectious Diseases

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China CDC weekly 2022年第12期4卷 235-237页

作者： Zhigang Cui Haijian Zhou Shuang Meng Xiaoli Du Jianguo Xu biao kan National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina State Key Laboratory of Infectious Disease Prevention and Control BeijingChina

Infectious diseases are a sustained threat to social development and public *** infectious diseases,including plague,cholera,anthrax,brucellosis,typhoid fever,meningitis,and even those caused by antimicrobial-resistant bacteria,have been prevalent around the world for a long time,and still trigger outbreaks and long-term epidemics in different countries or regions nowadays(1),and trans-regional spread of diseases has frequently exhibited epidemic patterns.

关键词： sustained diseases fever

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Survival and proliferation of the lysogenic bacteriophage CTXΦ in Vibrio cholerae

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Virologica Sinica 2015年第1期30卷 19-25页

作者： Fenxia Fan biao kan State Key Laboratory for Infectious Disease Prevention and Control National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention

The lysogenic phage CTXΦ of Vibrio cholerae can transfer the cholera toxin gene both horizontally(inter-strain) and vertically(cell proliferation). Due to its diversity in form and species, the complexity of regulatory mechanisms, and the important role of the infection mechanism in the production of new virulent strains of ***, the study of the lysogenic phage CTXΦ has attracted much attention. Based on the progress of current research, the genomic features and their arrangement, the host-dependent regulatory mechanisms of CTXΦ phage survival, proliferation and propagation were reviewed to further understand the phage's role in the evolutionary and epidemiological mechanisms of V. cholerae.

关键词： Vibrio cholerae lysogenic bacteriophage CTXΦ regulation evolution

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