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Numerical Simulation on Radon Retardation Behavior of Covering Floats in Radon-Containing Water

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Biomedical and Environmental Sciences 2024年第4期37卷 406-417页

作者： LIU Shu Yuan ZHANG Li YE Yong Jun DING Ku Ke National Institute for Radiological Protection Chinese Center for Disease Control and PreventionBeijing 100088China Office for Public Health Management Chinese Center for Disease Control and PreventionBeijing 102206China key Discipline laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy University of South ChinaHengyang 421001HunanChina

Objective This study aimed to efficiently reduce the release of radon from water bodies to protect the *** Based on the sizes of the experimental setup and modular float,computational fluid dynamics(CFD)was used to assess the impact of the area coverage rate,immersion depth,diffusion coefficient,and radon transfer velocity at the gas–liquid interface on radon migration and exhalation of radon-containing *** on the numerical simulation results,an estimation model for the radon retardation rate was *** effectiveness of the CFD simulation was evaluated by comparing the experimental and simulated variation values of the radon retardation rate with the coverage area *** The effect of radon transfer velocity on radon retardation in water bodies was minor and insignificant according to the appropriate value;therefore,an estimation model of the radon retardation rate of the coverage of a radon-containing water body was constructed using the synergistic impacts of three factors:area coverage rate,immersion depth,and diffusion *** deviation between the experimental and simulated results was<4.3%.Conclusion Based on the numerical simulation conditions,an estimation model of the radon retardation rate of covering floats in water bodies under the synergistic effect of multiple factors was obtained,which provides a reference for designing covering floats for radon retardation in radoncontaining water.

关键词： Radon-containing water Radon retardation rate CFD Coverage experiment Optimized design

Estimated Human Papillomavirus Vaccine Coverage Among Females 9-45 Years of Age — China, 2017-2022

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China CDC weekly 2024年第19期6卷 413-417页

作者： Junlei Chen Zhaonan Zhang Weiyi Pan Yifan Song Lu Zheng Li Li Jiakai Ye Lei Cao Wenzhou Yu Fujian Center for disease control and prevention Fuzhou CityFujian ProvinceChina National key laboratory of Intelligent Tracking and Forecasting for Infectious diseases(NITFID) BeijingChina National Immunization Program Chinese Center for Disease Control and PreventionBeijingChina Jining Center for disease control and prevention Jining CityShandong ProvinceChina

Summary What is already known on this topic?There is a lack of comprehensive data on the coverage of the human papillomavirus(HPV)vaccine in *** limited published literature hampers our ability to accurately assess th... 详细信息

关键词： vaccine Vaccine China.

Comparison of Three Influenza Surveillance Data Sources for Timely Detection of Epidemic Onset — Chengdu City, Sichuan Province and Beijing Municipality, China, 2017–2023

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China CDC weekly 2024年第36期6卷 918-923,I0004-I0006页

作者： Mingyue Pan Ying Shen Yao Wang Lu Long Xunbo Du Ying Sun Daitao Zhang Hui Yao Yonghong Liu Peng Yang Quanyi Wang Xiaoli Wang Liang Wang Beijing Center for disease prevention and control BeijingChina Beijing Research Center for Respiratory Infectious diseases BeijingChina Chengdu Center for disease control and prevention Chengdu CitySichuan ProvinceChina

What is already known about this topic?The syndromic surveillance system,exemplified by the influenza-like illness(ILI)surveillance system,has long been crucial in providing early warnings of influenza *** is added by this report?The analysis revealed that employing reported influenza case data from the nationwide Notifiable Infectious diseases Reporting Information System(NIDRIS)enhanced the early detection of influenza epidemics,particularly within the context of multiple respiratory pathogens circulating *** are the implications for public health practice?The NIDRIS,characterized by its extensive coverage,obligatory reporting,high specificity,and real-time data transmission,offers a valuable tool for the effective early detection of influenza *** this system could enhance preparedness and responses to such health crises,potentially mitigating their impact on public health.

关键词： nationwide system specificity

Analysis of Epidemiological and Issues Encountered in Case Reports on Echinococcosis—China,2022

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China CDC weekly 2024年第6期6卷 100-104页

作者： Yan Kui Shuai Han Xiaojuan Zhang Guangzhong Shi Yale Yu Ruirui Li Peizheng Zhan Hongju Duan Wenbo Luo Benfu Li Shaoqi Ning Yalan Zhang Aiya Zhu Jingbo Xue National Institute of Parasitic diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)National Health Commission Key Laboratory of Parasite and Vector BiologyWorld Health Organization Collaborating Center for Tropical DiseasesNational Center for International Research on Tropical DiseasesShanghaiChina Gansu Provincial Center for disease control and prevention Lanzhou CityGansu ProvinceChina The Center for disease control and prevention of Xinjiang Uygur Autonomous Region Urumuqi CityXinjiang Uygur Autonomous RegionChina Xinjiang Production and Construction Corps Center for disease control and prevention Urumuqi CityXinjiang Uygur Autonomous RegionChina Sichuan Provincial Center for disease control and prevention Chengdu CitySichuan ProvinceChina Qinhai Institute for Endemic disease control and prevention Xining CityQinghai ProvinceChina Ningxia Center for disease control and prevention Yinchuan CityNingxia Hui Autonomous RegionChina Inner Mongolia Autonomous Region Center for Comprehensive disease control and prevention Hohhot CityInner Mongolia AutonomousChina Yunnan Institute of Parasitic diseases Puer CityYunnan ProvinceChina Shaanxi Provincial Center for disease control and prevention Xi'an CityShaanxi ProvinceChina Henan Provincial Center for disease control and prevention Zhengzhou CityHenan ProvinceChina Guizhou Provincial Center for disease control and prevention Guiyang CityGuizhou ProvinceChina

Summary What is already known about this topic?Echinococcosis is classified as a Class C infectious disease in *** is endemic in 370 counties located in the agricultural and pastoral regions of western *** is added by this report?This report provides a comprehensive overview of the cases of echinococcosis reported in China in *** a thorough evaluation conducted by provincial CDCs.

关键词： China Ech counties

Establishment of a Lateral Flow Dipstick Detection Method for Influenza A Virus Based on CRISPR/Cas12a System

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China CDC weekly 2024年第37期6卷 946-952,I0008页

作者： Xiaoyan Zhao Ximing Zheng Xiyong Yang Qi Guo Yi Zhang Jun Lou Department of Clinical laboratory Zhumadian Central HospitalZhumadian CityHenan ProvinceChina laboratory of Virology Beijing Key Laboratory of Etiology of Viral Diseases in ChildrenCapital Institute of PediatricsBeijingChina National Institute for Viral disease control and prevention Chinese Center for Disease Control and PreventionBeijingChina

Objective:This study aimed to develop a rapid,visual PCR-CRISPR/Cas12-LFD method for detecting influenza A by utilizing the conserved region of the matrix protein ***:We crafted universal degradation primers and clustered regularly interspaced short palindromic repeats RNA(CRISPR RNA,crRNA)targeting the conserved matrix protein gene of the influenza virus(IFV),integrated with lateral flow dipstick(LFD)*** new PCR-CRISPR/Cas12-LFD approach was designed to determine its sensitivity and specificity through the analysis of various clinical samples collected in ***:The developed nucleic acid assay for influenza A viruses(IAV)demonstrated a sensitivity of 10 copies/μL without cross-reactivity with other respiratory *** of 82 clinical samples showed high concordance with results from fluorescent Polymerase Chain Reaction(PCR),achieving a kappa value of ***:A highly sensitive and specific PCRCRISPR/Cas12-LFD method has been successfully established for the detection of influenza A,offering a robust tool for its diagnosis and aiding in the prevention and control of this virus.

关键词： prevention diagnosis specificity

Interpretation of the Standards of Basic Dataset of Chronic diseases Behavior Risk Factor Surveillance in Adults

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Biomedical and Environmental Sciences 2024年第5期37卷 551-556页

作者： ZHAO Yan Fang ZHANG Mei WEI Wen Qiang SUN Ke Xin LI Xin Hua WANG Li Min National Center for Chronic and Noncommunicable disease control and prevention(NCNCD) Chinese Center for Disease Control and PreventionBeijing 100050China Cancer Hospital Chinese Academy of Medical SciencesBeijing 100021China Chinese Center for disease control and prevention Beijing 102206China People's Medical Publishing House Beijing 100021China

BACKGROUND China’s Behavioral Risk Factor Surveillance System(BRFSS)originated from the World Bankfunded HealthⅦLoan Project in the 1990s,which conducted behavioral risk factor surveillance in seven cities and one province^([1]).Drawing on the World Health Organization’s(WHO)STEPwise approach to surveillance(STEPs)and the *** Risk Factor Surveillance System(BRFSS)^([2,3]).

关键词： funded Basic originated

Advances in the Application of Molecular Diagnostic Techniques to Brucellosis

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Biomedical and Environmental Sciences 2024年第7期37卷 790-794页

作者： Haiwen Liu Hai Jiang School of Public Health Baotou Medical CollegeBaotou 014040Inner Mongolia AutonomousChina National key laboratory of Intelligent Tracing and Forecasting for Infectious diseases National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China

Brucellosis is a zoonotic infectious and allergic disease caused by Brucella *** occurs worldwide and has had a huge economic impact on the livestock industry in many countries and *** has become a major public health *** is an endoparasitic,non-motile Gram-negative bacterium capable of surviving within a diverse range of domestic animal hosts.

关键词： problem diverse capable

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

Rate and Change in Household Solid Fuels Usage Among Residents Aged 40 and Older — China, from 2014–2015 to 2019–2020

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China CDC weekly 2024年第43期6卷 1111-1119,I0001,I0002页

作者： Wenjing Wang Shu Cong Jing Fan Ning Wang Qian Wang Liwen Fang National Center for Chronic and Non-communicable disease control and prevention Chinese Center for Disease Control and PreventionBeijingChina National Center for Women and Children’s Health Chinese Center for Disease Control and PreventionBeijingChina.

Introduction:Solid fuel combustion is a significant source of household air pollution and an important risk factor for chronic obstructive pulmonary disease(COPD).This study presents the rates and change in the use of solid fuels for cooking and heating in ***:Based on data from the Chinese Chronic Obstructive Pulmonary disease Surveillance,the research estimated the rates and change of solid fuels usage for cooking and heating from 2014–2015 to 2019–2020 and the rate of primary cooking solid fuels usage in 2019–2020,and analyzed the association between solid fuels usage and ***:The rates of solid fuels usage for cooking and heating significantly decreased,dropping from 45.3%to 28.0%and from 33.5%to 23.2%,*** rates were higher among rural residents,with 47.2%using it for cooking and 37.7%for heating in *** usage of solid fuels for cooking is associated with increased risk of *** rural residents,combined usage of biomass and coal for cooking(OR=1.29,95%CI:1.12,1.48)and using coal as primary fuel for cooking(OR=1.18,95%CI:1.00,1.38)are associated with higher risk of *** usage of biomass for cooking is associated with an increased risk of COPD in urban residents(OR=1.17,95%CI:1.03,1.32).Conclusions:The study demonstrates a significant decline in the use of household solid ***,high utilization rates persist among individuals in rural settings and those from lower socioeconomic *** is of great public health importance to propose targeted fuel substitution measures for various solid fuels in different regions to reduce the risk of COPD.

关键词： cooking Solid usage