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An Outbreak of Serogroup Y Meningococcal Meningitis in a Private Secondary Vocational School-Guangzhou City,guangdong Province,China,2023

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China CDC weekly 2024年第12期6卷 242-246,I0005页

作者： Xiang Zeng Qing He Yilan Li Yong Zhou Xiaoping Shao Pei Hu Jian Liang Yudan Song Chao Ma Lijie Zhang Limei Sun Lei Luo Chinese Field Epidemiology Training Program Chinese Center for Disease Control and PreventionBeijingChina Zhuhai center for disease control and prevention Zhuhai CityGuangdong ProvinceChina guangdong center for disease control and prevention Guangzhou CityGuangdong ProvinceChina Guangzhou center for disease control and prevention Guangzhou CityGuangdong ProvinceChina Institute of Public Health Guangzhou Medical University&Guangzhou Center for Disease Control and PreventionGuangzhou CityGuangdong ProvinceChina Department of the National Immunization Programme Chinese Center for Disease Control and PreventionBeijingChina

What is already known about this topic?The inclusion of meningococcal vaccines in the National Immunization Program(NIP)over several years has significantly reduced the incidence of meningococcal meningitis in China to historic ***,there has been a diversification of meningococcal serogroups,leading to a shift in dominant serogroups in China from serogroup A to serogroups C and B,accompanied by a rise in reports of serogroups Y and *** is added by this report?An outbreak of serogroup Y Neisseria meningitidis(Nm)in a secondary vocational school involved a single confirmed severe case and 24 individuals with laboratory-confirmed Nm *** investigation revealed that the outbreak was localized to the classroom of the confirmed *** close contact within a confined space was identified as a significant risk factor for Nm *** genotype sequence identified was type 1655(ST-1655),which is categorized under clonal complex 23(CC-23)and bears resemblance to 8 previously confirmed cases of serogroup Y meningococcal meningitis within guangdong *** suggests that serogroup Y infections continue to sporadically emerge and have become prevalent *** are the implications for public health practice?This outbreak underscores the critical need to enhance surveillance of meningococcal serogroups and population carrier,and advocate for vaccination with MenY-containing vaccines.

关键词： break Secondary guangdong

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The Epidemiological Characteristics of Mpox Cases-China,2023

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China CDC weekly 2024年第26期6卷 619-623页

作者： Ruiqi Ren Chao Li Wenqing Bai Yali Wang Dan Li Fan Ding Niu Yan Qi Wang Nijuan Xiang Lianmei Jin Lei Zhou Wenling Wang Fan Lyu Peilong Li Dapeng Zhang Yan Li Quanyi Wang Qun Li Guoqing Shi National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases Chinese Center for Disease Control and PreventionBeijingChina Chinese center for disease control and prevention BeijingChina National Institute for Viral disease control and prevention Chinese Center for Disease Control and PreventionBeijingChina National center for AIDS/STD control and prevention Chinese Center for Disease Control and PreventionBeijingChina guangdong Provincial center for disease control and prevention Guangzhou CityGuangdong ProvinceChina Beijing Municipal center for disease prevention and control BeijingChina

Summary What is already known about this topic?Since May 2022,a global outbreak of mpox has emerged in more than 100 non-endemic *** of December 2023,over 90,000 cases had been *** outbreak has predominantly affected men who have sex with men(MSM),with sexual contact identified as the principal mode of *** is added by this report?Since June 2023,China has faced an occurrence of mpox,predominantly affecting the MSM *** 90%of those affected reported engaging in homosexual behavior within 21 days prior to symptom onset,a trend that aligns with the global outbreak *** prompt identification of cases,diligent tracing of close contacts,and the implementation of appropriate management strategies have successfully mitigated the spread of mpox virus in *** are the implications for public health practice?We propose that mpox is transmitted locally within *** from our experiences in controlling the virus spread,it is crucial to investigate and formulate effective surveillance and educational ***,we must encourage high-risk populations to promptly seek medical care upon the onset of symptoms.

关键词： prompt Drawing spread

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First Case Report of Cystic Echinococcosis Caused by G7 Genotype Echinococcus intermedius Confirmed by Genetic Sequencing—Southern China,December 2023

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China CDC weekly 2024年第23期6卷 558-562页

作者： De Wu Jiayi Zhang Jieling Wang Yangyang Zhao Lei Wang Qiang Mao Haisen Lin Gang Yao Guanting Zhang Xu Wang Chuizhao Xue Ying Wang Jingdiao Chen Parasitic disease prevention and control Institute Guangdong Center for Disease Control and PreventionGuangzhou CityGuangdong ProvinceChina Epidemic prevention and control Institute Zhuhai Center for Disease Control and PreventionZhuhai CityGuangdong ProvinceChina Department of prevention&Healthcare Zhuhai First People's HospitalZhuhai CityGuangdong ProvinceChina National Institute of Parasitic diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)ShanghaiChina

What is already known about this topic?Echinococcosis exhibits a global *** China,the primary endemic area is the northwest *** December 2023,we documented a case of echinococcosis in an individual lacking any travel or residential history in endemic *** is added by this report?This is the first laboratory-confirmed case of hepatic echinococcosis reported in guangdong Province,associated with the G7 genotype of Echinococcus granulosus(***).The most probable mode of transmission is a local infection resulting from *** introduced from endemic *** are the implications for public health practice?As the circulation of agricultural products increases,it is essential to enhance the quarantine and management of livestock from epidemic areas to prevent and control the spread of echinococcosis to non-epidemic regions.

关键词： travel fir northwest

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Exploration for the Priority of HIV Intervention:Modelling Health Impact and Cost-Effectiveness—Six Cities,Eastern China,2019-2028

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China CDC weekly 2024年第20期6卷 463-468,I0008-I0014页

作者： Youran Zhang Lili Wang Zhen Jiang Hongjing Yan Xiaoxia Liu Jing Gu Guoyong Wang Xiaosong Cheng Qiyan Leng Qisui Long Zimian Liang Jing Wang Liang Liang Yanchao Qiu Lin Chen Hang Hong School of Health Service Management Anhui Medical UniversityHefei CityAnhui ProvinceChina Division of prevention and intervention National Center for AIDS and STD Control and PreventionChinese Center for Disease Control and PreventionBeijingChina Jiangsu Provincial center for disease control and prevention Nanjing CityJiangsu ProvinceChina Zhenjiang center for disease control and prevention Zhenjiang CityJiangsu ProvinceChina Wuxi center for disease control and prevention Wuxi CityJiangsu ProvinceChina Shandong Provincial center for disease control and prevention Jinan CityShandong ProvinceChina Yantai center for disease control and prevention Yantai CityShandong ProvinceChina guangdong Provincial center for disease control and prevention Guangzhou CityGuangdong ProvinceChina Foshan center for disease control and prevention Foshan CityGuangdong ProvinceChina Hebei Provincial center for disease control and prevention Shijiazhuang CityHebei ProvinceChina Shijiazhuang center for disease control and prevention Shijiazhuang CityChina Zhejiang Provincial center for disease control and prevention Hangzhou CityZhejiang ProvinceChina Ningbo center for disease control and prevention Ningbo CityZhejiang ProvinceChina

Introduction:In order to enhance the effectiveness of resource allocation,regions must tailor their responses to their specific epidemiological and economic ***:Utilizing Spectrum software,we projected the cost-effectiveness of 10 chosen HIV interventions in six cities in eastern China from 2019 to *** assessed three scenarios—Base,Achievable,and Idealized—for each *** analysis included the projected number of HIV infections and deaths averted,as well as the incremental costeffectiveness ratios for each intervention in the six ***:In Shijiazhuang,Wuxi,Yantai,and Zhenjiang,cities with initially low antiretroviral therapy(ART)coverage,ART showed significant effectiveness,especially for ***,in Foshan and Ningbo,where ART coverage was notably high,oral pre-exposure prophylaxis(PrEP)for men who have sex with men(MSM)proved effective in the Idealized *** outreach,ART for males,and ART for females demonstrated cost-effectiveness across all six cities in both Achievable and Idealized scenarios at the predefined thresholds for each ***:Maintaining an appropriate coverage rate for outreach to MSM can lead to *** cities with low ART coverage,scaling up ART remains a crucial *** regions with high ART coverage,consideration may be given to the utilization of oral PrEP for MSM individuals,requiring budget allocation.

关键词： Eastern Ningbo Impact

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The Impact of New Regulations on prevention and control of E-Cigarettes on Adolescents in Middle Schools—A City in China,2022–2023

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China CDC weekly 2024年第14期6卷 289-293页

作者： Meng Lyu Wenlong Lu Lanhua Zou Jingfan Xiong Jie Yang Tobacco control Office Chinese Center for Disease Control and PreventionBeijingChina Shenzhen center for Chronic disease control Shenzhen CityGuangdong ProvinceChina

What is already known about this topic?To protect the health of young people from the harmful impacts of electronic cigarettes(e-cigarettes),China has enacted various policies and regulations since *** of October 1,2022,the Electronic Cigarette Management Measures were put into *** prohibited the sale of flavored e-cigarettes,permitting only those of plain tobacco flavor to be *** is added by this report?The illegal market for flavored e-cigarettes,often disguised as milk tea cups,cola cans,and violent bear images,continues to *** is an increased need to bolster support for the prohibition of flavored e-cigarettes and enhance public awareness of associated *** are the implications for public health practice?To advance the health of China’s youth,it is crucial to improve the implementation and understanding of ecigarette policies and guidelines.

关键词： Middle Impact plain

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Temporal and Spatial Trends in HIV Positivity Rate for VCT Clinics—China,2015–2022

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China CDC weekly 2024年第1期6卷 6-11页

作者： Yi Liu Rong Su Dongmin Li Shaorong Wang Mengjie Han National center for AIDS/STD control and prevention Chinese Center for Disease Control and PreventionBeijingChina

Introduction:Human immunodeficiency virus(HIV)voluntary counseling and testing(VCT)clinics play a critical role in identifying and diagnosing HIV *** study aimed to describe the trend of HIV positivity rate(HPR)among Chinese VCT clinics between 2015 and ***:This study utilized data from the China Information System for disease control and prevention to analyze the trend in the HPR for VCT clinics from 2015 to *** HPR was calculated by dividing the number of newly-reported HIV cases by the number of HIV tests,multiplied by 100%.To identify temporal and spatial trends in the HPR,we employed joinpoint regression analysis and the Getis-Ord hotspot ***:From 2015 to 2022,VCT clinics in China performed a total of 22,075,386 HIV tests,leading to the identification of 260,353 HIV cases,resulting in a HPR of 1.18%.The HPR consistently declined over the study period,with an average annual percent change(AAPC)of−7.5%(95%confidence interval:−12.6%,−2.2%,Pguangdong,and Guangxi provincial-level administrative divisions(PLADs).Among the 31 PLADs,16 showed a significant decrease in HPR during the study period(AAPC<0,PAAPC<0.05).Conclusions:VCT clinics in China have played a significant role in identifying HIV *** declining HPR observed in these clinics may indicates the progress has been made in some degree in mitigating HIV among high-risk ***,it is crucial to further improving the utilization of VCT clinics for HIV testing.

关键词： VCT dividing Spatial

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Community Incidence Estimates of Five Pathogens Based on Foodborne diseases Active Surveillance—China,2023

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China CDC weekly 2024年第24期6卷 574-579,I0002页

作者： Penghui Fan Haihong Han Jikai Liu Xiaochen Ma Ronghua Zhang Hong Liu Yijing Zhou Zunhua Chu Jian Wen Li Lin Weiwei Li Yunchang Guo NHC Key Laboratory of Food Safety Risk Assessment China National Center for Food Safety Risk AssessmentBeijingChina Beijing center for disease prevention and control BeijingChina Zhejiang Provincial center for disease control and prevention Hangzhou CityZhejiang ProvinceChina Shanghai center for disease control and prevention ShanghaiChina Jiangsu Provincial center for disease control and prevention Nanjing CityJiangsu ProvinceChina Shandong Province center for disease control and prevention Jinan CityShandong ProvinceChina guangdong Province center for disease control and prevention Guangzhou CityGuangdong ProvinceChina Sichuan Province center for disease control and prevention Chengdu CitySichuan ProvinceChina

What is already known about this topic?Foodborne diseases,representing significant food safety and public health challenges globally,are not welldocumented in terms of incidence,particularly for cases characterized by acute gastroenteritis(AGI)in *** is added by this report?This study developed a pyramid model to estimate the incidence of five pathogens,stratified by gender and *** estimated incidences per 100,000 people with 95%uncertainty intervals(UI)are as follows:Norovirus,3,188.28(95%UI:2,518.03,7,296.96);Salmonella spp.,1,295.59(95%UI:1,002.62,1,573.11);diarrheagenic ***(DEC),782.62(95%UI:651.19,932.05);Vibrio parahaemolyticus,404.06(95%UI:342.19,468.93);and Shigella spp.,26.73(95%UI:21.05,33.46).What are the implications for public health practice?This study elucidates the incidence rates across various gender and age groups,thereby identifying priority populations for targeted preventive interventions aimed at reducing disease *** insights are crucial for the development of public health policies and management of food safety risks.

关键词： acute diseases stratified

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Development of a High-throughput Sequencing Platform for Detection of Viral Encephalitis Pathogens Based on Amplicon Sequencing

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Biomedical and Environmental Sciences 2024年第3期37卷 294-302页

作者： ZHANG Ya Li SU Wen Zhe WANG Rui Chen LI Yan ZHANG Jun Feng LIU Sheng Hui HU Dan He XU Chong Xiao YIN Jia Yu YIN Qi Kai HE Ying LI Fan FU Shi Hong NIE Kai LIANG Guo Dong TAO Yong XU Song Tao MA Chao Feng WANG Huan Yu Shaanxi University of Chinese Medicine Xianyang 712000ShaanxiChina National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Guangzhou center for disease control and prevention Guangzhou 510000GuangdongChina Shandong center for disease control and prevention Jinan 250000ShandongChina Department of Ophthalmology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Xi'an center for disease control and prevention Xi’an 710054ShaanxiChina

Objective Viral encephalitis is an infectious disease severely affecting human *** is caused by a wide variety of viral pathogens,including herpes viruses,flaviviruses,enteroviruses,and other *** laboratory diagnosis of viral encephalitis is a worldwide ***,high-throughput sequencing technology has provided new tools for diagnosing central nervous system ***,In this study,we established a multipathogen detection platform for viral encephalitis based on amplicon *** We designed nine pairs of specific polymerase chain reaction(PCR)primers for the 12 viruses by reviewing the relevant *** detection ability of the primers was verified by software simulation and the detection of known positive *** sequencing was used to validate the samples,and consistency was compared with Sanger *** The results showed that the target sequences of various pathogens were obtained at a coverage depth level greater than 20×,and the sequence lengths were consistent with the sizes of the predicted *** sequences were verified using the National center for Biotechnology Information BLAST,and all results were consistent with the results of Sanger *** Amplicon-based high-throughput sequencing technology is feasible as a supplementary method for the pathogenic detection of viral *** is also a useful tool for the high-volume screening of clinical samples.

关键词： Viral encephalitis Amplicon sequencing High-throughput sequencing Multipathogen detection

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Serological Investigation into the Infected Genotypes of Patients with Japanese Encephalitis in the Coastal Provinces of China

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Biomedical and Environmental Sciences 2024年第7期37卷 716-725页

作者： Weijia Zhang Jierong Zhao Qikai Yin Shenghui Liu Ruichen Wang Shihong Fu Fan Li Ying He Kai Nie Guodong Liang Songtao Xu Guang Yang Huanyu Wang National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China School of Basic Medicine and Public Health Jinan UniversityGuangzhou 510000GuangdongChina

Objective Genotypes(G)1,3,and 5 of the Japanese encephalitis virus(JEV)have been isolated in China,but the dominant genotype circulating in Chinese coastal areas remains *** searched for G5 JEV-infected cases and attempted to elucidate which JEV genotype was most closely related to human Japanese encephalitis(JE)in the coastal provinces of *** In this study,we collected serum specimens from patients with JE in three coastal provinces of China(guangdong,Zhejiang,and Shandong)from 2018 to 2020 and conducted JEV cross-neutralization tests against G1,G3,and *** Acute serum specimens from clinically reported JE cases were obtained for laboratory confirmation from hospitals in Shandong(92 patients),Zhejiang(192 patients),and guangdong(77 patients),China,from 2018 to *** of the 361 serum specimens were laboratory-confirmed to be infected with *** cases were confirmed to be infected with G1 JEV,32 with G3 JEV,and two with G5 *** G3 was the primary infection genotype among JE cases with a definite infection genotype,and the infection caused by G5 JEV was confirmed serologically in China.

关键词： Japanese encephalitis virus Serological investigation Plaque reduction neutralization test Cross-neutralization test Genotype

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Investigation of Nasal Mucosal IgA Responses in the Population Following COVID-19 Pandemic — China, September 2022–August 2023

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China CDC weekly 2024年第15期6卷 312-317,I0005页

作者： Boyang Li Lei Zhou Zhilong Chen Yanhan Wen Qian Wang Tao Huang Si Chen Wei Wu Mengxuan Wang Lina Sun Mifang Liang Shiwen Wang Ling Chen Qun Li National Institute for Viral disease control and prevention Chinese Center for Disease Control and PreventionBeijingChina National Key Laboratory of Intelligent Tracking and Forecasting for Infectious diseases Chinese Center for Disease Control and PreventionBeijingChina Xiamen United Institute of Respiratory Health Xiamen CityFujian ProvinceChina Guangzhou Laboratory Guangzhou CityGuangdong ProvinceChina State Key Laboratory of Respiratory disease Guangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou CityGuangdong ProvinceChina

What is already known about this topic?Mucosal IgA plays a crucial role in host immunity against respiratory *** studies suggest that it has the potential to mitigate the transmission of the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)Omicron ***,a comprehensive population-based analysis examining mucosal IgA levels following the winter 2022 wave of the coronavirus disease 2019(COVID-19)pandemic is yet to be *** is added by this report?In our study involving 3,421 participants,we documented IgA responses subsequent to SARS-CoV-2 infection.A significant proportion of individuals sustained increased levels of IgA for over six *** levels were also observed in individuals with prior infections who underwent asymptomatic reinfections,indicating an active production of IgA ***,individuals with multiple vaccinations or severe symptoms tended to display elevated IgA levels after *** are the implications for public health practice?IgA in the nasal mucosa is crucial for defense against SARS-CoV-2 *** insights can enhance our knowledge of immune responses following infection and have provided certain reference values for disease prevention and control strategies.

关键词： prevention sustained immunity

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