检索结果-南通市图书馆

First Human Infection Case of Monkey B Virus Identified in China,2021

在线全文

学校读者我要写书评

暂无评论

China CDC weekly 2021年第29期3卷 632-633页

作者： Wenling Wang Wenjie Qi Jingyuan Liu Haijun Du Li Zhao Yang Zheng Guoxing Wang Yang Pan Baoying Huang Zhaomin Feng daitao Zhang Peng Yang Jun Han Quanyi Wang Wenjie Tan Key Laboratory of Biosafety National Health and Family Planning CommissionNational Institute for Viral Disease Control and PreventionChina CDCBeijingChina Beijing Friendship Hospital Capital Medical UniversityBeijingChina Intensive Care Medicine Beijing Ditan HospitalCapital Medical UniversityBeijingChina Viral Center of National Pathogen Resource Center China CDCBeijingChina Beijing Center for Disease Prevention and Control BeijingChina

Monkey B virus(BV),initially isolated in 1.32,is currently designated as Macacine alphaherpesvirus 1.by the International Committee on Taxonomy of Viruses(1..BV is an alphaherpesvirus enzootic in macaques of the genus Macaca,normally transmitted horizontally via direct contact and exchange of bodily secretions,just like herpes simplex virus(HSV)in humans.

关键词： initially Human simplex

Extensively Drug-Resistant(XDR)Salmonella Typhi Outbreak by Waterborne Infection——Beijing Municipality,China,January-February 2022

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China CDC weekly 2022年第12期4卷 254-258页

作者： Yu Wang Dan Lu Yingying Jin Huanxin Wang Bing Lyu Xin Zhang Ying Huang Gaolin Shu Baiwei Liu Changying Lin Hao Zhao Mingqiang Zhao Lingyu Shen Zhiyong Gao daitao Zhang Quanyi Wang Mei Qu Lei Jia Beijing Center for Disease Prevention and Control Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food PoisoningBeijingChina Changping District Center for Disease Control and Prevention BeijingChina

Summary What is already known about this topic?Typhoid fever remains a major public health problem in developing *** typhoid fever affects an estimated 27 million people worldwide each *** of indiscriminate antibiotic usage has driven the emergence and spread of multidrug-resistant(MDR)and even extensively drug-resistant(XDR)Salmonella Typhi(***)strains.

关键词： break Waterborne XDR

Epidemiological Investigation of an Inhalational Anthrax Patient Traveling for Medical Treatment in Beijing Municipality,China,August 2021

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China CDC weekly 2022年第1期4卷 4-7页

作者： Changying Lin Xiangfeng Dou daitao Zhang Yinqi Sun Huiqiang Han Chunzhi Chen Xiaojun Zhang Shuang Li Yanwei Chen Hongbin Zhang Bin Wang Zhichao Liang Xin Zhang Feng Wei Jiangli Wang Feng Liu Quanyi Wang Jian Shi Peng Yang Beijing Center for Disease Control and Prevention BeijingChina Hebei Provincial Center for Disease Control and Prevention ShijiazhuangHebeiChina Chengde Center for Disease Control and Prevention ChengdeHebeiChina Haidian District Center of Disease Control and Prevention HaidianBeijingChina Weichang County Center for Disease Control and Prevention ChengdeHebeiChina.

Summary What is already known about this topic?Inhalational anthrax,also known as pulmonary anthrax,is an infectious disease caused by Bacillus *** patients are usually infected by inhaling aerosolized *** spores from dead animals or animal *** to cutaneous anthrax,inhalational anthrax is rare and deadly and few cases in China were *** is added by this report?This report covers all information of clinical features,laboratory testing,and epidemiological characteristics as well as exposure history of a recent primary inhalational anthrax patient who was seeking medical treatment in Beijing Municipality in August *** laboratory techniques,including second-generation sequencing,polymerase chain reaction,and rapid test for serum antibody,played an important role in the *** are the implications for public health practice?The information provided in this report,including the correct sample type,epidemiological investigation details,and application of the new diagnostic criteria of anthrax,could assist public health professionals in dealing with anthrax epidemics.

关键词： clinical details dealing

Acute gastroenteritis outbreaks caused by human astrovirus,1.78-2021.A systematic review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biosafety and Health 2023年第2期5卷 120-125页

作者： Jiamei Fu Fan Yu Hanning Li Lingyu Shen Yi Tian Lei Jia daitao Zhang Peng Yang Quanyi Wang Zhiyong Gao China Medical University School of Public Health Shenyang 110122China Beijing Center for Disease Prevention and Control Beijing 100069China Capital Medical University School of Public Health Beijing 100013China

Human astrovirus(HAstV)is one of the main pathogens that cause sporadic cases of acute gastroenteritis,sometimes leading to *** study aimed to elucidate the epidemiological and etiological character-istics of HAstV outbreaks *** on HAstV outbreaks published before January 2022 was retrieved from the China National Knowledge Infrastructure,WanFang,WeiPu,PubMed,and Web of Science ***,region,population,settings,transmission modes,clinical symptoms,and etiological characteristics of the outbreaks were collected and ***-one articles on 32 HAstV outbreaks reported between November 1.78 and October 201. were *** outbreaks mainly occurred in autumn(1./32,43.75%),and more of them were reported in 1.96,2004,and *** were primarily dis-tributed in the Northern Hemisphere and mainly occurred in nursery centers and kindergartens(9/29,31.03%),hospitals(5/29,1..24%),and schools(4/29,1..79%).Viral genotypes were identified during 1. outbreaks,and HAstV-1.was predominant(8/1.,42.1.%).Eleven outbreaks were caused by mixed infection,and norovirus(9/1.,81.82%)and rotavirus(5/1.,45.45%)were the most common mixed *** transmission routes were reported in 9 outbreaks of mixed infection,and most(7/9)were related to water-borne and foodborne *** HAstV outbreaks are infrequently reported,it is necessary to con-sider HAstV in norovirus-negative gastroenteritis *** addition,local Centers for Disease Control and Prevention should have the capacity to handle HAstV outbreaks and identify pathogens.

关键词： Astrovirus Acute gastroenteritis Outbreak Epidemiological characteristics

Importation of SARS-CoV-2 Omicron variant in Beijing,China

在线全文

学校读者我要写书评

暂无评论

Biosafety and Health 2022年第3期4卷 150-153页

作者： Fu Li Zhichao Liang Shujuan Cui Bing Lv Zhaomin Feng Hui Xu Lei Jia Peng Yang Quanyi Wang Yang Pan daitao Zhang Beijing Center for Disease Prevention and Control Beijing 100013China

Omicron(B.1.1.529),the fifth variant of concern(VOC)of severe acute respiratory syndrome coronavirus 2(SARS‐CoV‐2),was firstly identified in November 2021.in South *** contains far more genome mutations than any other VOCs ever found,raising significant concerns about its increased transmissibility and immune ***,we report the importation of the Omicron variant into Beijing,China,in December ***‐length genome sequences of five imported strains were obtained,with their genetic features *** strain contained 57 to 61.nucleotide substitutions,39 deletions,and 9 insertions in the *** to thirty‐two amino acid changes were found in the spike proteins of the five *** phylogenetic tree constructed by the maximum likelihood method showed that all five imported genomes belonged to Omicron(BA.1.(alias of B.1.1.529.1.,which is leading to the current surge of coronavirus disease 201.(COVID‐1.)cases *** globally increased COVID‐1. cases driven by the Omicron variant pose a significant challenge to disease prevention and control in *** viral genetic surveillance and increased testing among international travellers are required to contain this highly contagious variant.

关键词： COVID‐1. SARS‐CoV‐2 Omicron variant Genomic characteristics

Application of a ddRT-PCR to quantify seasonal influenza virus for viral isolation

在线全文

学校读者我要写书评

暂无评论

Biosafety and Health 2022年第5期4卷 299-302页

作者： Yimeng Liu Jiachen Zhao Xiaomin Peng Guilan Lu Weixian Shi Zhaomin Feng Hui Xu Shujuan Cui Yang Pan daitao Zhang Peng Yang Quanyi Wang Institute for Infectious Disease and Endemic Disease Control Beijing Center for Disease Prevention and ControlBeijing 100013China

Viral isolation in cell cultures has been regarded for decades as the“gold standard”for the laboratory diagnosis of influenza viral *** all viral strains could be isolated from clinical *** study aimed to quantify the viral load in the samples before isolation to save working time and improve working *** hundred samples from patients with influenza-like cases were confirmed pdmH1.1.positive(200 cases)and B Victoria(BV)positive(200 cases)by whole-genome sequencing and analyzed by ddPCR for viral load in samples before isolation,and isolation results were verified by hemagglutination(HA)assay and hemagglutination-inhibition(HI)*** regression analysis was used to calculate the isolation viral load limit with a 95%probability level by SPSS 1..0 *** results showed that the isolation limit of viral load was 4.9×1.^(4)(95%CI:2.5×1.^(4)–9.0×1.^(4))copies/mL for pdmH1.1.and 1.9×1.^(4)(95%CI:7.8×1.3–3.6×1.^(4))copies/mL for *** isolation rate of clinical samples is positively correlated with the viral load in clinical samples,which can be used for viral culture,providing important guidance for daily work.

关键词： Influenza virus ddRT-PCR Viral load Viral isolation

秦山第三核电厂核闭式冷却水系统热交换器损坏分析及全面维修

在线全文

学校读者我要写书评

暂无评论

核动力工程 2017年第4期38卷 112-115页

作者：龚代涛江锋王欣陈继芳胡建群中核核电运行管理有限公司浙江海盐314300

秦山第三核电厂闭式冷却水系统热交换器设计寿命40 a,是核安全相关设备。在使用3 a后,钛制管板和换热管突然出现大量冲蚀特征明显的损坏。分析后认为:海水系统的运行参数、设备材料选择和结构设计均没有充分考虑具体的海水环境,是导致... 详细信息

秦山第三核电厂闭式冷却水系统热交换器设计寿命40 a,是核安全相关设备。在使用3 a后,钛制管板和换热管突然出现大量冲蚀特征明显的损坏。分析后认为:海水系统的运行参数、设备材料选择和结构设计均没有充分考虑具体的海水环境,是导致设备发生严重冲蚀的根本原因;而脱落的衬胶改变了局部流场力学特征,是诱发设备突发性严重损坏的直接原因。通过系统改造、换管、管板修补和保护、重新衬里等工作,恢复并提高了设备的长期可靠性。

关键词：热交换器损坏分析冲蚀维修

Genomic characteristics of SARS-CoV-2 in Beijing,China,2021

在线全文

学校读者我要写书评

暂无评论

Biosafety and Health 2022年第4期4卷 253-257页

作者： Zhaomin Feng Shujuan Cui Bing Lyu Zhichao Liang Fu Li Lingyu Shen Hui Xu Peng Yang Quanyi Wang daitao Zhang Yang Pan Beijing Center for Disease Prevention and Control Beijing 100013China

At present,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)spread worldwide,which has emerged multiple variants and brought a threat to global public *** analyze the genomic characteristics and variations of SARS-CoV-2 imported into Beijing,we collected the respiratory tract specimens of 1.2 cases of coronavirus disease 201.(COVID-1.)from January to September 2021.in Beijing,China,including 40 local cases and 72 imported *** whole-genome sequences of the viruses were sequenced by the next-generation sequencing *** markers and phylogenic features of SARS-CoV-2 were *** results showed that in all 1.2 sequences,the mutations were concentrated in spike protein.D61.G was found in all sequences,and mutations including L452R,T478K,P681./H,and D950N in some ***,1.2 sequences belonged to 23 lineages by phylogenetic analysis.B.1.1.7(Alpha)and B.1.61..2(Delta)lineages were *** study drew a variation image of SARS-CoV-2 and could help evaluate the potential risk of COVID-1. for pandemic preparedness and response.

关键词： Severe acute respiratory syndrome coronavirus 2 Variation Genome Phylogenetic analysis

A Local Cluster of Omicron Variant COVID-1. Likely Caused by Internationally Mailed Document——Beijing Municipality,China,January 2022

在线全文

学校读者我要写书评

暂无评论

China CDC weekly 2022年第14期4卷 302-304页

作者： daitao Zhang Shuangsheng Wu Zhenyong Ren Ying Sun Xiangfeng Dou Zhaomin Feng Fu Li Yi Tian Shujuan Cui Baiwei Liu Bing Lyu Xiaoli Wang Feng Liu Lina Jin Chu Jiang Lina Tian Zhenjiang Xin Zhichao Liang Lei Jia Quanyi Wang Yang Pan Peng Yang Beijing Center for Disease Control and Prevention BeijingChina Haidian District Center for Disease Control and Prevention BeijingChina Fengtai District Center for Disease Control and Prevention BeijingChina

On January 1.,2022,a 26 years old female(Case A)went to a sampling site for coronavirus disease 201.(COVID-1.)testing due to excessive fatigue and fever for two *** patient preliminarily tested positive for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)using a quantitative real-time reverse transcription polymerase chain reaction(qRT-PCR)method.

关键词： acute respiratory fever