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Chen N, Feng ZJ, Gao HX, He Q, Zeng WC. Elucidating the influence and mechanism of different phenols on the properties, food quality and function of maize starch. Food Chem 2024; 449:139191. [PMID: 38583396 DOI: 10.1016/j.foodchem.2024.139191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/29/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
This study discusses interaction differences between three phenols (protocatechuic acid, naringin and tannic acid) and starch helix, investigates influences of phenols at different doses on properties of maize starch, and further determines their effects on quality and function of maize-starchy foods. Simulated results indicate variations of phenolic structure (phenolic hydroxyl group amount, glycoside structure and steric hindrance) and dose induce phenols form different complexes with starch helix. Formation of different starch-phenols complexes alters gelatinization (1.65-5.63 J/g), pasting form, water binding capacity (8.83-12.69 g/g) and particle size distribution of starch. Meanwhile, differences in starch-phenols complexes are reflected in fingerprint area (R1045/1022: 0.920 to 1.047), crystallinity (8.3% to 17.0%), rheology and gel structure of starch. Additionally, phenols change texture and color of cold maize cake, giving them different antioxidant capacity and lower digestibility. Findings are beneficial for understanding interaction between starch and different phenols and their potential application.
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Affiliation(s)
- Nan Chen
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China
| | - Zi-Jian Feng
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China
| | - Hao-Xiang Gao
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China
| | - Qiang He
- The Key Laboratory of Food Science and Technology of Sichuan Province of Education, Sichuan University, Chengdu 610065, PR China
| | - Wei-Cai Zeng
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China; The Key Laboratory of Food Science and Technology of Sichuan Province of Education, Sichuan University, Chengdu 610065, PR China.
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Qu K, Miao YL, Fan SM, Liu YZ, Yang XK, Zhao HT, Qin Y, Zheng JD, Zhang YP, Peng ZB, Feng ZJ. [Theoretical models for influenza vaccination behavior at the individual level]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:608-614. [PMID: 38678361 DOI: 10.3760/cma.j.cn112338-20230718-00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/29/2024]
Abstract
Influenza imposes a significant disease burden on society and individuals annually, and influenza vaccination is considered a significant public health measure to prevent influenza and reduce influenza-related severe disease and death. The low influenza vaccination rate in China is partly due to certain factors affecting the willingness and behavior of individuals to receive them. Scientific research and targeted interventions on these factors can effectively improve the vaccination situation. Commonly used individual-level theoretical models for influenza vaccination behavior include the health belief model, protection motivation theory, and theory of planned behavior. This study reviews theoretical models commonly employed in researching influenza vaccination willingness and behavior. An overview of these practical applications and challenges models is presented to provide references for relevant research and intervention programs in China.
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Affiliation(s)
- K Qu
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y L Miao
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S M Fan
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Z Liu
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X K Yang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H T Zhao
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Zheng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y P Zhang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Preventive Medicine Association, Beijing 100021, China
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Chen N, Feng ZJ, Gao HX, He Q, Zeng WC. Elucidating effects of Epiphyllum oxypetalum (DC.) Haw polysaccharide on the physicochemical and digestive properties of tapioca starch. Int J Biol Macromol 2024; 260:129446. [PMID: 38409770 DOI: 10.1016/j.ijbiomac.2024.129446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/18/2023] [Accepted: 01/10/2024] [Indexed: 02/28/2024]
Abstract
Effects of Epiphyllum oxypetalum (DC.) Haw polysaccharide (EP) on physicochemical/digestive properties of tapioca starch (TS) were investigated, and its effects on final quality of TS-based foods were further determined. Results showed EP significantly decreased gelatinization enthalpy (3.92 to 2.11 J/g) and increased breakdown (302 to 382 cp), thereby inducing the gelatinization of TS. Meanwhile, EP decreased setback viscosity (324 to 258 cp), suggesting the retrogradation of TS paste was inhibited. Rheological determination results suggested EP had an impact on the viscoelasticity of TS paste. Moreover, particle size distribution showed EP increased size of TS by cross-linking. Additionally, the suitable addition of EP ameliorated the microstructure and decreased the crystal diffraction peak area of TS gel. Infrared spectroscopy results revealed EP modified the above properties of TS by hydrogen bonds and non-covalent forces. Furthermore, EP inhibited the in vitro digestion of TS paste. Using taro balls as TS-based food model, appropriate addition of EP (0.10 %) improved texture properties, frozen storage stability and color of samples. The present results can not only facilitate the understanding of the modification mechanism of EP on the properties of TS, but also induce the burgeoning of starchy products and the possible application of EP in foods.
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Affiliation(s)
- Nan Chen
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China
| | - Zi-Jian Feng
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China
| | - Hao-Xiang Gao
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China
| | - Qiang He
- The Key Laboratory of Food Science and Technology of Sichuan Province of Education, Sichuan University, Chengdu 610065, PR China
| | - Wei-Cai Zeng
- Antioxidant Polyphenols Team, Department of Food Engineering, Sichuan University, Chengdu 610065, PR China; The Key Laboratory of Food Science and Technology of Sichuan Province of Education, Sichuan University, Chengdu 610065, PR China.
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Wang Z, Yang C, Li B, Wu H, Xu Z, Feng Z. Comparison of simulation and predictive efficacy for hemorrhagic fever with renal syndrome incidence in mainland China based on five time series models. Front Public Health 2024; 12:1365942. [PMID: 38496387 PMCID: PMC10941340 DOI: 10.3389/fpubh.2024.1365942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024] Open
Abstract
Background Hemorrhagic fever with renal syndrome (HFRS) is a zoonotic infectious disease commonly found in Asia and Europe, characterized by fever, hemorrhage, shock, and renal failure. China is the most severely affected region, necessitating an analysis of the temporal incidence patterns in the country. Methods We employed Autoregressive Integrated Moving Average (ARIMA), Long Short-Term Memory (LSTM), Convolutional Neural Network (CNN), Nonlinear AutoRegressive with eXogenous inputs (NARX), and a hybrid CNN-LSTM model to model and forecast time series data spanning from January 2009 to November 2023 in the mainland China. By comparing the simulated performance of these models on training and testing sets, we determined the most suitable model. Results Overall, the CNN-LSTM model demonstrated optimal fitting performance (with Root Mean Square Error (RMSE), Mean Absolute Percentage Error (MAPE), and Mean Absolute Error (MAE) of 93.77/270.66, 7.59%/38.96%, and 64.37/189.73 for the training and testing sets, respectively, lower than those of individual CNN or LSTM models). Conclusion The hybrid CNN-LSTM model seamlessly integrates CNN's data feature extraction and LSTM's recurrent prediction capabilities, rendering it theoretically applicable for simulating diverse distributed time series data. We recommend that the CNN-LSTM model be considered as a valuable time series analysis tool for disease prediction by policy-makers.
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Affiliation(s)
- ZhenDe Wang
- School of Public Health, Shandong Second Medical University, Weifang, China
| | - ChunXiao Yang
- School of Public Health, Shandong Second Medical University, Weifang, China
| | - Bing Li
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - HongTao Wu
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhen Xu
- Chinese Center for Disease Control and Prevention, Beijing, China
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Beijing, China
| | - ZiJian Feng
- Chinese Preventive Medicine Association, Beijing, China
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Wang Z, Wang Y, Zhang S, Wang S, Xu Z, Feng Z. Trend analysis and prediction of gonorrhea in mainland China based on a hybrid time series model. BMC Infect Dis 2024; 24:113. [PMID: 38253998 PMCID: PMC10802032 DOI: 10.1186/s12879-023-08969-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Gonorrhea has long been a serious public health problem in mainland China that requires attention, modeling to describe and predict its prevalence patterns can help the government to develop more scientific interventions. METHODS Time series (TS) data of the gonorrhea incidence in China from January 2004 to August 2022 were collected, with the incidence data from September 2021 to August 2022 as the validation. The seasonal autoregressive integrated moving average (SARIMA) model, long short-term memory network (LSTM) model, and hybrid SARIMA-LSTM model were used to simulate the data respectively, the model performance were evaluated by calculating the mean absolute percentage error (MAPE), root mean square error (RMSE), and mean absolute error (MAE) of the training and validation sets of the models. RESULTS The Seasonal components after data decomposition showed an approximate bimodal distribution with a period of 12 months. The three models identified were SARIMA(1,1,1) (2,1,2)12, LSTM with 150 hidden units, and SARIMA-LSTM with 150 hidden units, the SARIMA-LSTM model fitted best in the training and validation sets, for the smallest MAPE, RMSE, and MPE. CONCLUSIONS The overall incidence trend of gonorrhea in mainland China has been on the decline since 2004, with some periods exhibiting an upward trend. The incidence of gonorrhea displays a seasonal distribution, typically peaking in July and December each year. The SARIMA model, LSTM model, and SARIMA-LSTM model can all fit the monthly incidence time series data of gonorrhea in mainland China. However, in terms of predictive performance, the SARIMA-LSTM model outperforms the SARIMA and LSTM models, with the LSTM model surpassing the SARIMA model. This suggests that the SARIMA-LSTM model can serve as a preferred tool for time series analysis, providing evidence for the government to predict trends in gonorrhea incidence. The model's predictions indicate that the incidence of gonorrhea in mainland China will remain at a high level in 2024, necessitating that policymakers implement public health measures in advance to prevent the spread of the disease.
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Affiliation(s)
- Zhende Wang
- School of Public Health, Weifang Medical University, Weifang, China
| | - Yongbin Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, China
| | - Shengkui Zhang
- School of Basic Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Suzhen Wang
- Zibo Hospital of Shandong Health Group, Zibo, China
| | - Zhen Xu
- Chinese Center for Disease Control and Prevention, Beijing, China.
- National Key Laboratory Of Intelligent Tracking And Forecasting For Infectious Diseases, Beijing, China.
| | - ZiJian Feng
- Chinese Preventive Medicine Association, Beijing, China.
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6
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Feng ZJ, Song QY, Han Y, Wei ZY, Fu C, Zang YF. Short-term effect of coil handle orientations on fMRI-guided rTMS on insomnia: A case report. Clin Neurophysiol Pract 2023; 8:194-196. [PMID: 37854662 PMCID: PMC10579103 DOI: 10.1016/j.cnp.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 10/20/2023] Open
Abstract
Introduction The coil handle orientation plays a pivotal role in the therapeutic efficacy of repetitive transcranial magnetic stimulation (rTMS). However, there is currently no consensus on the optimal individualized coil handle orientation, especially for non-motor areas. Case presentation The present case reported a short-term effect of functional connectivity (FC)-guided rTMS with coil handle posterior-anterior 45° (PA45°) and posterior-anterior 135° (PA135°) on a patient with insomnia. Notably, in this case, the PA45° orientation was nearly perpendicular to the adjacent sulcus, while the PA135° orientation was almost parallel to it. Local brain activity and functional connectivity were assessed using resting-state functional magnetic resonance imaging (RS-fMRI). Additionally, motor evoked potentials (MEPs) were captured both pre and post-rTMS sessions. Findings The coil handle orientation PA45° outperformed the PA135° in both RS-fMRI and MEP outcomes. Moreover, a 9-day rTMS treatment led to discernible improvements in symptoms of depression and anxiety, complemented by a modest enhancement in sleep quality.
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Affiliation(s)
- Zi-Jian Feng
- TMS Center, Deqing Hospital of Hangzhou Normal University, Deqing, China
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Qiu-Ying Song
- Department of Neurology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Yu Han
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Zi-Yu Wei
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Cong Fu
- TMS Center, Deqing Hospital of Hangzhou Normal University, Deqing, China
| | - Yu-Feng Zang
- TMS Center, Deqing Hospital of Hangzhou Normal University, Deqing, China
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
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7
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Fan SM, Yang XK, Zhao HT, Qin Y, Zheng JD, Peng ZB, Zhang YP, Feng ZJ. [Progress in research of influenza vaccination in pregnant women]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1157-1162. [PMID: 37482722 DOI: 10.3760/cma.j.cn112338-20221012-00877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Influenza is an acute respiratory infectious disease caused by influenza virus. Pregnancy is associated with physiologic and immunological changes that may increase the risk for influenza virus infection and influenza-related complications. Influenza vaccination is the most effective way to prevent influenza virus infection. WHO and many countries have classified pregnant women as a priority population for influenza vaccination, however, there are still many challenges for promoting influenza vaccination in pregnant women in China, influenza vaccination coverage in pregnant women remains low and some influenza vaccine package inserts list pregnancy as an absolute contraindication. In this paper, we summarize the research progress in the effects of influenza infection and influenza vaccination during pregnancy both at home and abroad, then discuss the strategies to promote influenza vaccination in pregnancy for the purpose of providing reference for the related research and policy development in China.
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Affiliation(s)
- S M Fan
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X K Yang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H T Zhao
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Zheng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y P Zhang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Kou ZQ, Liu LJ, Xu CS, Zhao HT, Zhang ZN, Yang XK, Peng ZB, Feng LZ, Xu AQ, Wang DY, Chen ZP, Zheng JD, Feng ZJ, Yu WZ. [Thoughts and suggestions on co-administration of seasonal influenza vaccine and COVID-19 vaccine]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1395-1400. [PMID: 36274604 DOI: 10.3760/cma.j.cn112150-20220826-00846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In the context of the global pandemic of COVID-19, the epidemic intensity, epidemic characteristics and infection risk of influenza have presented new features. COVID-19 and influenza have simultaneously emerged in many regions of the world. COVID-19 and influenza are similar in terms of transmission mode, clinical symptoms and other aspects. There are also similarities in the mechanism of influenza virus and novel coronavirus on cells. At the same time, it is feasible and significant to do a good job in the prevention and control of COVID-19 and influenza. This paper discusses the relevant strategies and measures for the joint prevention and control of influenza and novel coronavirus from the aspects of influenza vaccination to prevent co-infection, simultaneous vaccination of influenza vaccine and novel coronavirus vaccine, etc., and puts forward corresponding thoughts and suggestions, in order to provide scientific support for the formulation of strategies on seasonal influenza vaccine and novel coronavirus vaccination.
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Affiliation(s)
- Z Q Kou
- Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention/Shandong Provincial Key Laboratory for Infectious Disease Prevention and Control, Jinan 250014, China
| | - L J Liu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - C S Xu
- Suqian Center for Disease Control and Prevention, Suqian 223800, China
| | - H T Zhao
- Department of Infectious Disease Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z N Zhang
- Center for Immunization, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - X K Yang
- Department of Infectious Disease Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Department of Infectious Disease Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L Z Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - A Q Xu
- Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention/Shandong Provincial Key Laboratory for Infectious Disease Prevention and Control, Jinan 250014, China
| | - D Y Wang
- National Institute of Viral Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z P Chen
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - J D Zheng
- Department of Infectious Disease Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Preventive Medical Association, Beijing 100021, China
| | - W Z Yu
- Center for Immunization, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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9
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Hu YS, Yue J, Ge Q, Feng ZJ, Wang J, Zang YF. Test-retest reliability of peak location in the sensorimotor network of resting state fMRI for potential rTMS targets. Front Neuroinform 2022; 16:882126. [PMID: 36262839 PMCID: PMC9574049 DOI: 10.3389/fninf.2022.882126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 09/15/2022] [Indexed: 11/27/2022] Open
Abstract
Most stroke repetitive transcranial magnetic stimulation (rTMS) studies have used hand motor hotspots as rTMS stimulation targets; in addition, recent studies demonstrated that functional magnetic resonance imaging (fMRI) task activation could be used to determine suitable targets due to its ability to reveal individualized precise and stronger functional connectivity with motor-related brain regions. However, rTMS is unlikely to elicit motor evoked potentials in the affected hemisphere, nor would activity be detected when stroke patients with severe hemiplegia perform an fMRI motor task using the affected limbs. The current study proposed that the peak voxel in the resting-state fMRI (RS-fMRI) motor network determined by independent component analysis (ICA) could be a potential stimulation target. Twenty-one healthy young subjects underwent RS-fMRI at three visits (V1 and V2 on a GE MR750 scanner and V3 on a Siemens Prisma) under eyes-open (EO) and eyes-closed (EC) conditions. Single-subject ICA with different total number of components (20, 30, and 40) were evaluated, and then the locations of peak voxels on the left and right sides of the sensorimotor network (SMN) were identified. While most ICA RS-fMRI studies have been carried out on the group level, that is, Group-ICA, the current study performed individual ICA because only the individual analysis could guide the individual target of rTMS. The intra- (test-retest) and inter-scanner reliabilities of the peak location were calculated. The use of 40 components resulted in the highest test-retest reliability of the peak location in both the left and right SMN compared with that determined when 20 and 30 components were used for both EC and EO conditions. ICA with 40 components might be another way to define a potential target in the SMN for poststroke rTMS treatment.
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Affiliation(s)
- Yun-Song Hu
- Center for Cognition and Brain Disorders, The Affiliated Hospital Hangzhou Normal University, Hangzhou, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
| | - Juan Yue
- Center for Cognition and Brain Disorders, The Affiliated Hospital Hangzhou Normal University, Hangzhou, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
| | - Qiu Ge
- Center for Cognition and Brain Disorders, The Affiliated Hospital Hangzhou Normal University, Hangzhou, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
| | - Zi-Jian Feng
- Center for Cognition and Brain Disorders, The Affiliated Hospital Hangzhou Normal University, Hangzhou, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
| | - Jue Wang
- Institute of Sports Medicine and Health, Chengdu Sport University, Chengdu, China
- *Correspondence: Jue Wang
| | - Yu-Feng Zang
- Center for Cognition and Brain Disorders, The Affiliated Hospital Hangzhou Normal University, Hangzhou, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
- Yu-Feng Zang
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10
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Feng ZJ, Deng XP, Zhao N, Jin J, Yue J, Hu YS, Jing Y, Wang HX, Knösche TR, Zang YF, Wang J. Resting-State fMRI Functional Connectivity Strength Predicts Local Activity Change in the Dorsal Cingulate Cortex: A Multi-Target Focused rTMS Study. Cereb Cortex 2021; 32:2773-2784. [PMID: 34689201 PMCID: PMC9247427 DOI: 10.1093/cercor/bhab380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 12/19/2022] Open
Abstract
Previous resting state functional magnetic resonance imaging (RS-fMRI) studies suggested that repetitive transcranial magnetic stimulation (rTMS) can modulate local activity in distant areas via functional connectivity (FC). A brain region has more than one connection with the superficial cortical areas. The current study proposed a multi-target focused rTMS protocol for indirectly stimulating a deep region, and to investigate 1) whether FC strength between stimulation targets (right middle frontal gyrus [rMFG] and right inferior parietal lobule [rIPL]) and effective region (dorsal anterior cingulate cortex [dACC]) can predict local activity changes of dACC and 2) whether multiple stimulation targets can focus on the dACC via FC. A total of 24 healthy participants received rTMS with two stimulation targets, both showing strong FC with the dACC. There were four rTMS conditions (>1 week apart, 10 Hz, 1800 pulses for each): rMFG-target, rIPL-target, Double-targets (900 pulses for each target), and Sham. The results failed to validate the multi-target focused rTMS hypothesis. But rMFG-target significantly decreased the local activity in the dACC. In addition, stronger dACC-rMFG FC was associated with a greater local activity change in the dACC. Future studies should use stronger FC to focus stimulation effects on the deep region.
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Affiliation(s)
- Zi-Jian Feng
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Xin-Ping Deng
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Na Zhao
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Jing Jin
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Juan Yue
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Yun-Song Hu
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Ying Jing
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Hong-Xiao Wang
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Thomas R Knösche
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig 04103, Germany
| | - Yu-Feng Zang
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China.,Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou 310015, China
| | - Jue Wang
- Institute of sports medicine and health, Chengdu Sport University, Chengdu 610041, China
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11
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Lai XZ, Peng ZB, Qin Y, Feng LZ, Li ZJ, Feng ZJ, Fang H. [Financing strategies and cost estimates of influenza vaccination for the elderly in China: explore a multi-party co-payment mechanism]. Zhonghua Yi Xue Za Zhi 2021; 101:2029-2036. [PMID: 34275235 DOI: 10.3760/cma.j.cn112137-20210205-00365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The disease burden and economic burden of seasonal influenza is substantial in China, and the Coronavirus disease 2019 (COVID-19) pandemic has brought new challenges to the prevention and control of influenza. As a priority group of influenza vaccination, the elderly are at higher risk of influenza-associated severe symptoms and deaths, and they are more price-sensitive vaccine users with better cost-effectiveness of vaccination program. Therefore, a reasonable financing mechanism of influenza vaccination should be designed for the elderly to increase their vaccination rate. This study proposes three financing strategies of influenza vaccination for the elderly in China, trying to explore the distribution of vaccination costs among individuals, central government and local governments under different financing strategies, including the individual-central-local mechanism (strategy 1), the central-local mechanism (strategy 2), and the local payment mechanism (strategy 3). Strategy 1 is feasible and sustainable for most regions in the short term. Strategy 2 is conducive to further increasing the vaccine coverage rate of the elderly. Strategy 3 encourages local fiscal payments to help relieve the financial pressure of the central government. The results revealed a relatively heavy financial burden of influenza vaccination for the elderly, and it is recommended to promote the development of a multiparty co-payment mechanism gradually based on local conditions.
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Affiliation(s)
- X Z Lai
- School of Public Health, Peking University, Beijing 100191, China
| | - Z B Peng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L Z Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Z J Li
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H Fang
- Peking University Health Science Center -Chinese Center for Disease Control and Prevention Joint Center for Vaccine Economics, Beijing 100191, China
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12
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Cao M, Zhao JH, Zhang J, Yu WZ, Yin ZD, Cao L, Ye JK, Wu J, Cao XQ, Shu YC, Wang HT, Wang XL, Liu YL, Feng ZJ. [Analysis of the time for observation and related factors at clinics after vaccination among children's parents]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1080-1085. [PMID: 34814511 DOI: 10.3760/cma.j.cn112338-20201010-01222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To understand the time for observation and related factors in the clinics after vaccination among children's parents. Methods: From December 2019 to January 2020, parents of children aged 0-3 years were recruited by multiple-stage sampling from 34 vaccination clinics in 12 districts and counties in 6 provinces (Shandong, Guangdong, Henan, Sichuan, Inner Mongolia, and Liaoning). A questionnaire survey on the time of observation after vaccination was conducted. A multivariate logistic regression model was used to analyze the related factors of parental observation time after vaccination. Results: A total of 3 292 parents of 0-3 year's old children were selected, and 3 178 parents were finally included in the analysis. 87.85%(2 792/3 178) of the parents reported that the observation time after vaccination at clinics was ≥30 minutes. Multivariate logistic regression analysis showed that, after adjusting for the regions, the main factors affecting the observation time at clinics after vaccination among parents appeared as observation time informed by physicians at the clinic appeared ≥30 minutes (OR=31.622, 95%CI: 19.847-50.384), parents were medical personnel (OR=2.779, 95%CI: 1.505-5.133), parents being volunteers working on vaccination-related publicity and education activities (OR=1.986, 95%CI: 1.438-2.743), parents aged 35 years old or above (OR=1.900, 95%CI: 1.215-2.971), being parents of the first child (OR=1.663, 95%CI: 1.282-2.156), per capita annual income of the family as 8 000- Yuan (OR=1.646, 95%CI: 1.168-2.319), children aged 0-12 months old (OR=1.646, 95%CI: 1.203-2.252) or 13-24 months old (OR=1.506, 95%CI: 1.064-2.133), obedient to physicians' advice at the clinic (OR=1.481, 95%CI: 1.067-2.055). Conclusions: The proportions of parents observed for ≥30 minutes at the clinics of vaccination were high. When the information was from the physicians at the vaccination clinic, the observation time was the most critical factor for parents to observe at clinics as required.
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Affiliation(s)
- M Cao
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J H Zhao
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Z Yu
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Z D Yin
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L Cao
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - J K Ye
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - J Wu
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - X Q Cao
- Peking Union Medical College Training Center, Beijing 100730, China
| | - Y C Shu
- Peking Union Medical College Training Center, Beijing 100730, China
| | - H T Wang
- Peking Union Medical College Training Center, Beijing 100730, China
| | - X L Wang
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y L Liu
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Z J Feng
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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13
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Geng MJ, Wang LP, Ren X, Yu JX, Chang ZR, Zheng CJ, An ZJ, Li Y, Yang XK, Zhao HT, Li ZJ, He GX, Feng ZJ. Correction to: Risk factors for developing severe COVID-19 in China: an analysis of disease surveillance data. Infect Dis Poverty 2021; 10:81. [PMID: 34078456 PMCID: PMC8170455 DOI: 10.1186/s40249-021-00868-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Meng-Jie Geng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Li-Ping Wang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiang Ren
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jian-Xing Yu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhao-Rui Chang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Can-Jun Zheng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhi-Jie An
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yu Li
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao-Kun Yang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hong-Ting Zhao
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhong-Jie Li
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Guang-Xue He
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Zi-Jian Feng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
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14
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Geng MJ, Wang LP, Ren X, Yu JX, Chang ZR, Zheng CJ, An ZJ, Li Y, Yang XK, Zhao HT, Li ZJ, He GX, Feng ZJ. Risk factors for developing severe COVID-19 in China: an analysis of disease surveillance data. Infect Dis Poverty 2021; 10:48. [PMID: 33845915 PMCID: PMC8040359 DOI: 10.1186/s40249-021-00820-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 03/05/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND COVID-19 has posed an enormous threat to public health around the world. Some severe and critical cases have bad prognoses and high case fatality rates, unraveling risk factors for severe COVID-19 are of significance for predicting and preventing illness progression, and reducing case fatality rates. Our study focused on analyzing characteristics of COVID-19 cases and exploring risk factors for developing severe COVID-19. METHODS The data for this study was disease surveillance data on symptomatic cases of COVID-19 reported from 30 provinces in China between January 19 and March 9, 2020, which included demographics, dates of symptom onset, clinical manifestations at the time of diagnosis, laboratory findings, radiographic findings, underlying disease history, and exposure history. We grouped mild and moderate cases together as non-severe cases and categorized severe and critical cases together as severe cases. We compared characteristics of severe cases and non-severe cases of COVID-19 and explored risk factors for severity. RESULTS The total number of cases were 12 647 with age from less than 1 year old to 99 years old. The severe cases were 1662 (13.1%), the median age of severe cases was 57 years [Inter-quartile range(IQR): 46-68] and the median age of non-severe cases was 43 years (IQR: 32-54). The risk factors for severe COVID-19 were being male [adjusted odds ratio (aOR) = 1.3, 95% CI: 1.2-1.5]; fever (aOR = 2.3, 95% CI: 2.0-2.7), cough (aOR = 1.4, 95% CI: 1.2-1.6), fatigue (aOR = 1.3, 95% CI: 1.2-1.5), and chronic kidney disease (aOR = 2.5, 95% CI: 1.4-4.6), hypertension (aOR = 1.5, 95% CI: 1.2-1.8) and diabetes (aOR = 1.96, 95% CI: 1.6-2.4). With the increase of age, risk for the severity was gradually higher [20-39 years (aOR = 3.9, 95% CI: 1.8-8.4), 40-59 years (aOR = 7.6, 95% CI: 3.6-16.3), ≥ 60 years (aOR = 20.4, 95% CI: 9.5-43.7)], and longer time from symtem onset to diagnosis [3-5 days (aOR = 1.4, 95% CI: 1.2-1.7), 6-8 days (aOR = 1.8, 95% CI: 1.5-2.1), ≥ 9 days(aOR = 1.9, 95% CI: 1.6-2.3)]. CONCLUSIONS Our study showed the risk factors for developing severe COVID-19 with large sample size, which included being male, older age, fever, cough, fatigue, delayed diagnosis, hypertension, diabetes, chronic kidney diasease, early case identification and prompt medical care. Based on these factors, the severity of COVID-19 cases can be predicted. So cases with these risk factors should be paid more attention to prevent severity.
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Affiliation(s)
- Meng-Jie Geng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Li-Ping Wang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiang Ren
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jian-Xing Yu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhao-Rui Chang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Can-Jun Zheng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhi-Jie An
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yu Li
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao-Kun Yang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hong-Ting Zhao
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhong-Jie Li
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Guang-Xue He
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Zi-Jian Feng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
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15
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Chen YD, Li HZ, Xu LQ, Qian MB, Tian HC, Fang YY, Zhou CH, Ji Z, Feng ZJ, Tang M, Li Q, Wang Y, Bergquist R, Zhou XN. Effectiveness of a community-based integrated strategy to control soil-transmitted helminthiasis and clonorchiasis in the People's Republic of China. Acta Trop 2021; 214:105650. [PMID: 32805214 DOI: 10.1016/j.actatropica.2020.105650] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 01/25/2023]
Abstract
Soil-transmitted helminthiases (STHs) are caused by a group of intestinal nematode infections due to poor hygiene and environments, and clonorchiasis is a food-borne trematode (FBT) infection caused by ingestion of raw freshwater fish. Both are endemic in the People's Republic of China. To explore a suitable control strategy, integrated interventions were applied between 2007 and 2009 in ten pilot counties (eight for the STHs and two for clonorchiasis). Drug administration was used for treatment and complementary efforts to improve the situation based on health education, provision of clean water and sanitation were carried out. Significant achievements were gained as reflected by a drastic decrease in prevalence these infections were demonstrated. The overall prevalence of STHs and clonorchiasis decreased from 35.9% to 7.8% and from 41.4% to 7.0%, respectively. The reduction of prevalence and high cost-effectiveness were documented supporting large-scale application of this integrated intervention in China and elsewhere.
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Affiliation(s)
- Ying-Dan Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Shanghai 200025, China
| | - Hua-Zhong Li
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Long-Qi Xu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Shanghai 200025, China
| | - Men-Bao Qian
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Shanghai 200025, China
| | - Hong-Chun Tian
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - Yue-Yi Fang
- Guangdong Center for Disease Control and Prevention, Guangzhou 510300, China
| | - Chang-Hai Zhou
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Shanghai 200025, China
| | - Zhuo Ji
- Heilongjiang Center for Disease Control and Prevention, Haerbin 150030, China
| | - Zi-Jian Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Meng Tang
- Danling Center for Disease Control and Prevention, Danling 620200, China
| | - Qun Li
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yu Wang
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | | | - Xiao-Nong Zhou
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China; Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Centre for Tropical Diseases, Shanghai 200025, China.
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16
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Yang XK, Li Y, Zhao HT, Li ZL, Geng MJ, Wang WL, Qin Y, Yu JX, Peng ZB, Tan WJ, Zheng JD, Li ZJ, Feng ZJ. [Advance on the infectivity of SARS-CoV-2 infection at different stages]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:33-38. [PMID: 33503696 DOI: 10.3760/cma.j.cn112338-20200806-01027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The studies on infectiousness of person infected with SARS-CoV-2 at different stages of illness are an important basis for making effective prevention and control measures such as investigating the infectious source, determining the scope of close contacts and the timing of case isolation. This review discusses the infectiousness of cases infected with SARS-CoV-2 in the incubation period, symptomatic period and convalescent period by reviewing national and international literatures, technical and professional guidelines. Existing researches suggest that the infectious viruses could be isolated at the end of the incubation period as well as since illness onset, and viral load in upper respiratory tract swabs reached the peak on day 4-6 after illness onset and thereafter began to decline, implying the infectiousness was relatively strong at the end of incubation period and within one week after illness onset. Although there were a few cases who tested positive for SARS-CoV-2 after recovery, no evidence was found to indicate these cases can cause the transmission.
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Affiliation(s)
- X K Yang
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H T Zhao
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z L Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M J Geng
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W L Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J X Yu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W J Tan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Zheng
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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17
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He N, Lu YH, Li LM, Shen HB, Yang WZ, Feng ZJ. [Epidemiological study design of asymptomatic infection of the 2019 novel coronavirus]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1577-1581. [PMID: 32736419 DOI: 10.3760/cma.j.cn112338-20200723-00975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
COVID-19 is caused by the 2019 novel coronavirus (2019-nCoV). COVID-19 clinical cases are considered as the principal source of infection, however, asymptomatic cases may also play a role in the transmission. Significant gap exists in terms of the proportion or prevalence and transmissibility of asymptomatic cases. This study design plans to use data from areas with different epidemiological profiles to investigate the COVID-19 epidemic in China. In each selected region, both general community residents and key populations at high risk of COVID-19 infection, including recovered COVID-19 cases, close contacts of confirmed COVID-19 cases, medical professionals, investigators at CDCs, and visitors to fever clinics, will be recruited and examined for viral RNA of 2019-nCoV and serum antibodies. Prevalence and characterization of asymptomatic cases will be determined, stratified by varied demographics and exposure risk. During the follow-up, the change in the serum antibodies will be studied prospectively in the symptomatic and asymptomatic cases to address the scientific and public health concerns of infectivity and transmissibility of 2019-nCoV.
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Affiliation(s)
- N He
- School of Public Health, Fudan University, Shanghai 200032, China
| | - Y H Lu
- School of Public Health, Fudan University, Shanghai 200032, China
| | - L M Li
- School of Public Health, Peking University, Beijing 100191, China
| | - H B Shen
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - W Z Yang
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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18
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Chen W, Wang Q, Li YQ, Yu HL, Xia YY, Zhang ML, Qin Y, Zhang T, Peng ZB, Zhang RC, Yang XK, Yin WW, An ZJ, Wu D, Yin ZD, Li S, Chen QL, Feng LZ, Li ZJ, Feng ZJ. [Early containment strategies and core measures for prevention and control of novel coronavirus pneumonia in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:239-244. [PMID: 32064856 DOI: 10.3760/cma.j.issn.0253-9624.2020.03.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In December 2019, novel coronavirus pneumonia epidemic occurred in Wuhan, Hubei Province, and spread rapidly across the country. In the early stages of the epidemic, China adopted the containment strategy and implemented a series of core measures around this strategic point, including social mobilization, strengthening case isolation and close contacts tracking management, blocking epidemic areas and traffic control to reduce personnel movements and increase social distance, environmental measures and personal protection, with a view to controlling the epidemic as soon as possible in limited areas such as Wuhan. This article summarizes the background, key points and core measures in the country and provinces. It sent prospects for future prevention and control strategies.
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Affiliation(s)
- W Chen
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Wang
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - Y Q Li
- National Immunization Programme, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - H L Yu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Y Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M L Zhang
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - T Zhang
- Public Health Emergency Center, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - R C Zhang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X K Yang
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - W W Yin
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - Z J An
- National Immunization Programme, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - D Wu
- National Immunization Programme, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - Z D Yin
- National Immunization Programme, Chinese Center for Disease Control and Prevention, Beijing 100050
| | - S Li
- Nanning City Center for Disease Control and Prevention, Nanning 530023, China
| | - Q L Chen
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - L Z Feng
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - Z J Li
- Division of Infectious Disease, Chinese Centerfor Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206
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19
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Wang J, Deng XP, Wu YY, Li XL, Feng ZJ, Wang HX, Jing Y, Zhao N, Zang YF, Zhang J. High-Frequency rTMS of the Motor Cortex Modulates Cerebellar and Widespread Activity as Revealed by SVM. Front Neurosci 2020; 14:186. [PMID: 32265624 PMCID: PMC7096733 DOI: 10.3389/fnins.2020.00186] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/20/2020] [Indexed: 11/15/2022] Open
Abstract
Functional magnetic resonance imaging (fMRI) studies have shown that the effect of repetitive transcranial magnetic stimulation (rTMS) can induce changes in remote brain regions. In the stimulated regions, low-frequency (≤1 Hz) rTMS induces inhibitory effects, while high-frequency (≥5 Hz) stimulation induces excitatory effects. However, these stereotypical effects arising from low- and high-frequency stimulation are based on measurements of motor evoked potentials (MEPs) induced by pulsed stimulation. To test the effects of rTMS on remote brain regions, the current study recruited 31 young healthy adults who participated in three rTMS sessions (10 Hz high frequency, 1 Hz low frequency, and sham) on three separate days. The stimulation target was based on individual fMRI activation in the motor cortex evoked by a finger movement task. Pre- and post-rTMS resting-state fMRI (RS-fMRI) were acquired. Regional homogeneity (ReHo) and degree centrality (DC) were calculated to measure the local and global connectivity, respectively. Compared with the sham session, high-frequency (10 Hz) rTMS significantly increased ReHo and DC in the right cerebellum, while low-frequency (1 Hz) stimulation did not significantly alter ReHo or DC. Then, using a newly developed PAIR support vector machine (SVM) method, we achieved accuracy of 93.18–97.24% by split-half validation for pairwise comparisons between conditions for ReHo or DC. While the univariate analyses suggest that high-frequency rTMS of the left motor cortex could affect distant brain activity in the right cerebellum, the multivariate SVM results suggest that both high- and low-frequency rTMS significantly modulated widespread brain activity. The current findings are useful for increasing the understanding of the mechanisms of rTMS, as well as guiding precise individualized rTMS treatment of movement disorders.
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Affiliation(s)
- Jue Wang
- School of Psychology, Shanghai University of Sport, Shanghai, China
| | - Xin-Ping Deng
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Yun-Ying Wu
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Xiao-Long Li
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Zi-Jian Feng
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Hong-Xiao Wang
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Ying Jing
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Na Zhao
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Yu-Feng Zang
- Institute of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Jian Zhang
- School of Psychology, Shanghai University of Sport, Shanghai, China
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20
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Jing Y, Zhao N, Deng XP, Feng ZJ, Huang GF, Meng M, Zang YF, Wang J. Pregenual or subgenual anterior cingulate cortex as potential effective region for brain stimulation of depression. Brain Behav 2020; 10:e01591. [PMID: 32147973 PMCID: PMC7177590 DOI: 10.1002/brb3.1591] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 02/16/2020] [Accepted: 02/19/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The dorsolateral prefrontal cortex (DLPFC) is the standard stimulation target for the repetitive transcranial magnetic stimulation (rTMS) treatment of major depression disorder (MDD). A retrospective study by Fox and colleagues found that a more negative resting-state functional magnetic resonance imaging (RS-fMRI) functional connectivity (FC) between left DLPFC and the subgenual anterior cingulate cortex (sgACC) in a large group of healthy participants is associated with a better curative effects of rTMS in MDD, suggesting that the sgACC may be an effective region. However, a recent meta-analysis on RS-fMRI studies found that the pregenual ACC (pgACC), rather than the sgACC, of MDD patients showed increased local activity. METHODS We used the stimulation coordinates in the left DLPFC analyzed by Fox et al. to perform RS-fMRI FC between the stimulation targets obtained from previous rTMS MDD studies and the potential effective regions (sgACC and pgACC, respectively) on the RS-fMRI data from 88 heathy participants. RESULTS (a) Both the pgACC and the sgACC were negatively connected to the left DLPFC; (b) both FCs of sgACC-DLPFC and pgACC-DLPFC were more negative in responders than in nonresponders; and (c) the associations between DLPFC-sgACC functional connectivity and clinical efficacy were clustered around the midline sgACC. CONCLUSIONS Both the pgACC and the sgACC may be potential effective regions for rTMS on the left DLPFC for treatment of MDD. However, individualized ACC-DLPFC FC-based rTMS on depression should be performed in the future to test the pgACC or the sgACC as effective regions.
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Affiliation(s)
- Ying Jing
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
| | - Na Zhao
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
| | - Xin-Ping Deng
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
| | - Zi-Jian Feng
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
| | - Guo-Feng Huang
- School of Information and Electronics Technology, Jiamusi University, Jiamusi, China
| | - Meng Meng
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
| | - Yu-Feng Zang
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
| | - Jue Wang
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, China
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21
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Wang J, Meng HJ, Ji GJ, Jing Y, Wang HX, Deng XP, Feng ZJ, Zhao N, Zang YF, Zhang J. Finger Tapping Task Activation vs. TMS Hotspot: Different Locations and Networks. Brain Topogr 2019; 33:123-134. [PMID: 31691912 PMCID: PMC6943404 DOI: 10.1007/s10548-019-00741-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 10/22/2019] [Indexed: 12/15/2022]
Abstract
Both functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) have been used to non-invasively localize the human motor functional area. These locations can be clinically used as stimulation target of TMS treatment. However, it has been reported that the finger tapping fMRI activation and TMS hotspot were not well-overlapped. The aim of the current study was to measure the distance between the finger tapping fMRI activation and the TMS hotspot, and more importantly, to compare the network difference by using resting-state fMRI. Thirty healthy participants underwent resting-state fMRI, task fMRI, and then TMS hotspot localization. We found significant difference of locations between finger tapping fMRI activation and TMS hotspot. Specifically, the finger tapping fMRI activation was more lateral than the TMS hotspot in the premotor area. The fMRI activation peak and TMS hotspot were taken as seeds for resting-state functional connectivity analyses. Compared with TMS hotspot, finger tapping fMRI activation peak showed more intensive functional connectivity with, e.g., the bilateral premotor, insula, putamen, and right globus pallidus. The findings more intensive networks of finger tapping activation than TMS hotspot suggest that TMS treatment targeting on the fMRI activation area might result in more remote effects and would be more helpful for TMS treatment on movement disorders.
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Affiliation(s)
- Jue Wang
- School of Psychology, Shanghai University of Sport, Shanghai, 200438, China
| | - Hai-Jiang Meng
- School of Psychology, Shanghai University of Sport, Shanghai, 200438, China
| | - Gong-Jun Ji
- Department of Medical Psychology, Chaohu Clinical Medical College, Anhui Medical University, Hefei, 230032, China.,Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health, Hefei, 230032, Anhui, China
| | - Ying Jing
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, 311121, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, 310015, China
| | - Hong-Xiao Wang
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, 311121, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, 310015, China
| | - Xin-Ping Deng
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, 311121, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, 310015, China
| | - Zi-Jian Feng
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, 311121, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, 310015, China
| | - Na Zhao
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, 311121, China.,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, 311121, China.,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, 310015, China
| | - Yu-Feng Zang
- Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, 311121, China. .,Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, 311121, China. .,Center for Cognition and Brain Disorders and the Affiliated Hospital, Hangzhou Normal University, Hangzhou, 310015, China.
| | - Jian Zhang
- School of Psychology, Shanghai University of Sport, Shanghai, 200438, China.
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22
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Feng ZJ. [Strengthen operational researches on influenza polices, and promote influenza vaccination in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:961-963. [PMID: 31607037 DOI: 10.3760/cma.j.issn.0253-9624.2019.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This year of 2019 is the 10(th) anniversary of the 2009 H1N1 influenza pandemic, and a series of paper on epidemiology, disease burden, vaccine usage and adverse events following immunization (AEFI) incidences, cost-effectiveness of influenza vaccination, are forming an important topic of "influenza disease burden and vaccine policies" in this journal, which provide evidences and options for China's influenza prevention and control. We should continue to strengthen the operational researches on influenza prevention and control polices, increase the influenza vaccine coverage in high-risk groups, and improve the capacities of control and pandemic preparedness.
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Affiliation(s)
- Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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23
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Abstract
AIM To discuss the effects and mechanism of microRNA-34a in cell apoptosis induced by osteoarthritis. METHODS Collection of the normal and osteoarthritis synovial tissues and measurements of the miRNA-34a and TGIF2 gene expression. In the cell experiment, the cells were divided into Control, Blank and miRNA inhibitor group. The cell proliferation and apoptosis of the different groups were measured by MTT and flow cytometry and the TGIF2 protein expression in the different groups was evaluated by WB assay. The correlation between TGIF2 and miRNA-34a was analyzed by Double luciferase experiment. RESULTS Compared with normal synovial tissues, the miRNA-34a gene expression was significantly up-regulated and TGIF2 gene expression was significantly suppressed in osteoarthritis synovial tissues (p < 0.001, respectively). The cell proliferation was significantly depressed and the cell apoptosis rate was significantly increased in miRNA inhibitor group compared with the Control group (p < 0.001, respectively). Using the WB assay it was shown that the TGIF2 protein expression of miRNA inhibitor group was significantly suppressed compared with that of Control group (p < 0.01). By Double luciferase assay, TGIF2 gene was one target gene of miRNA-34a. CONCLUSION miRNA-34a could induce osteoarthritis synovial cell apoptosis via regulation of TGIF2 in vitro (Fig. 6, Ref. 29).
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24
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Feng LZ, Peng ZB, Wang DY, Yang P, Yang J, Zhang YY, Chen J, Jiang SQ, Xu LL, Kang M, Chen T, Zheng YM, Zheng JD, Qin Y, Zhao MJ, Tan YY, Li ZJ, Feng ZJ. [Technical guidelines for seasonal influenza vaccination in China, 2018-2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 39:1413-1425. [PMID: 30462947 DOI: 10.3760/cma.j.issn.0254-6450.2018.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Seasonal influenza vaccination is the most effective way to prevent influenza virus infection and its complications. Currently, China has licensed trivalent (IIV3) and quadrivalent inactivated influenza vaccine (IIV4), including split-virus influenza vaccine and subunit vaccine. In most parts of China, influenza vaccine is a category Ⅱ vaccine, which means influenza vaccination is voluntary, and recipients need to pay for it. To strengthen the technical guidance for prevention and control of influenza and the operational research on influenza vaccination in China, the National Immunization Advisory Committee (NIAC), Influenza Vaccine Technical Working Group (TWG), updated the 2014 technical guidelines and compiled the "Technical guidelines for seasonal influenza vaccination in China (2018-2019)" , based on most recent existing scientific evidences. The main updates include: epidemiology and disease burden of influenza, types of influenza vaccines, northern hemisphere influenza vaccination composition for the 2018-2019 season, and, IIV3 and IIV4 vaccines'major immune responses, durability of immunity, immunogenicity, vaccine efficacy, effectiveness, safety, cost-effectiveness and cost-benefit. The recommendations include: Points of Vaccination clinics (PoVs) should provide influenza vaccination to all persons aged 6 months and above who are willing to be vaccinated and do not have contraindications. No preferential recommendation is made for any influenza vaccine product for persons who can accept ≥1 licensed, recommended, and appropriate products. To decrease the risk of severe infections and complications due to influenza virus infection among high risk groups, the recommendations prioritize seasonal influenza vaccination for children aged 6-60 months, adults ≥60 years of age, persons with specific chronic diseases, healthcare workers, the family members and caregivers of infants <6 months of age, and pregnant women or women who plan to pregnant during the influenza season. Children aged 6 months to 8 years old require 2 doses of influenza vaccine administered a minimum of 4 weeks apart during their first season of vaccination for optimal protection. If they were vaccinated in previous influenza season, 1 dose is recommended. People ≥ 9 years old require 1 dose of influenza vaccine. It is recommended that people receive their influenza vaccination by the end of October. Influenza vaccination should be offered as soon as the vaccination is available. Influenza vaccination should continue to be available for those unable to be vaccinated before the end of October during the whole season. Influenza vaccine is also recommended for use in pregnant women during any trimester. These guidelines are intended for CDC members who are working on influenza control and prevention, PoVs members, healthcare workers from the departments of pediatrics, internal medicine, and infectious diseases, and members of maternity and child care institutions at all levels.
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Affiliation(s)
- L Z Feng
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D Y Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - P Yang
- Infectious Disease & Endemic Disease Control, Beijing Center forDisease Prevention and Control, Beijing 100013, China
| | - J Yang
- School of Public Health, Fudan University, Shanghai 200032, China
| | - Y Y Zhang
- Institute for Immunization Prevention and Planning, Henan Provincial Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - J Chen
- Institute for Communicable Disease Control and Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - S Q Jiang
- Department for Immunization Prevention and Planning, Nanshan District Center for Disease Control and Prevention, Shenzhen 518055
| | - L L Xu
- Institute for Communicable Disease Control and Prevention, Qinghai Center for Disease Prevention and Control, Xining 810007, China
| | - M Kang
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Chen
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y M Zheng
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Zheng
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M J Zhao
- Department for Emergency Management, Jinan Center for Disease Control and Prevention, Jinan 250021, China
| | - Y Y Tan
- Department for Communicable Disease Control and Prevention, Suzhou Center for Disease Control and Prevention, Suzhou 215004, China
| | - Z J Li
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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25
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Feng LZ, Peng ZB, Wang DY, Yang P, Yang J, Zhang YY, Chen J, Jiang SQ, Xu LL, Kang M, Chen T, Zheng YM, Zheng JD, Qin Y, Zhao MJ, Tan YY, Li ZJ, Feng ZJ. [Technical guidelines for seasonal influenza vaccination in China (2018-2019)]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 52:1101-1114. [PMID: 30419692 DOI: 10.3760/cma.j.issn.0253-9624.2018.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Seasonal influenza vaccination is the most effective way to prevent influenza virus infection and complications from infection. Currently, China has licensed trivalent inactivated influenza vaccine (IIV3) and quadrivalent inactivated influenza vaccine (IIV4), including split-virus influenza vaccine and subunit vaccine. Except for a few major cities, influenza vaccine is a category Ⅱ vaccine, which means influenza vaccination is voluntary, and recipients must pay for it. To strengthen the technical guidance for prevention and control of influenza and operational research on influenza vaccination in China, the National Immunization Advisory Committee (NIAC) Influenza Vaccine Technical Working Group (TWG), updated the 2014 technical guidelines and compiled the "Technical guidelines for seasonal influenza vaccination in China (2018-2019)" . The main updates in this version include: epidemiology, disease burden, types of influenza vaccines, northern hemisphere influenza vaccination composition for the 2018-2019 season, IIV3 and IIV4 immune response, durability of immunity, immunogenicity, vaccine efficacy, effectiveness, safety, cost-effectiveness and cost-benefit. The influenza vaccine TWG provided the recommendations for influenza vaccination for the 2018-2019 influenza season based on existing scientific evidence. The recommendations described in this report include the following: Points of Vaccination clinics (PoVs) should provide influenza vaccination to all persons aged 6 months and above who are willing to be vaccinated and do not have contraindications. No preferential recommendation is made for one influenza vaccine product over another for persons for whom more than one licensed, recommended, and appropriate product is available. To decrease the risk of severe infections and complications due to influenza virus infection among high risk groups, the recommendations prioritize seasonal influenza vaccination for children aged 6-59 months, adults ≥60 years of age, persons with specific chronic diseases, healthcare workers, the family members and caregivers of infants <6 months of age, and pregnant women or women who plan to become pregnant during the influenza season. Children aged 6 months through 8 years require 2 doses of influenza vaccine administered a minimum of 4 weeks apart during their first season of vaccination for optimal protection. If they were vaccinated in 2017-2018 influenza season or a prior season, 1 dose is recommended. People more than 8 years old require 1 dose of influenza vaccine. It is recommended that people receive their influenza vaccination by the end of October. Influenza vaccination should be offered as soon as the vaccination is available. For the people unable to be vaccinated before the end of October, influenza vaccination will continue to be offered for the whole season. Influenza vaccine is also recommended for use in pregnant women during any trimester. These guidelines are intended for use by staff members of the Centers for Disease Control and Prevention at all levels who work on influenza control and prevention, PoVs staff members, healthcare workers from the departments of pediatrics, internal medicine, and infectious diseases, and staff members of maternity and child care institutions at all levels.
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Affiliation(s)
| | - Z B Peng
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D Y Wang
- Division of Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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26
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Abstract
China experienced a very high and severe influenza seasonal epidemics during the past winter and spring of 2017-2018 season. This year of 2018 is the 100(th) anniversary of the 1918 "Spanish influenza" pandemic, a series of papers under the topic "One Hundred Years of Influenza Pandemics" are produced to demonstrate the impact, characteristics and responses of the past influenza pandemics in global and China, to review the progress and experiences of influenza surveillance, prevention and control strategies, vaccination and antivirus in China, and to discuss the gap and challenges of the prevention, control and response to the seasonal influenza, human avian influenza infection and influenza pandemics. We hope this series could help to raise the awareness of the seasonal and pandemic influenza in publics, and to improve the pandemic preparedness in China.
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Affiliation(s)
- Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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27
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Luo C, Liang JS, Gong J, Zhang HL, Feng ZJ, Yang HT, Zhang HB, Kong QH. miRNA-31 over-expression improve synovial cells apoptosis induced by RA. ACTA ACUST UNITED AC 2018; 119:355-360. [PMID: 29947235 DOI: 10.4149/bll_2018_066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the effects and mechanism of miRNA-31 in synovial cells apoptosis induced by RA. METHODS The miRNA-31 gene expressions were extracted from synovial tissues of normal and RA patients by RT-PCR and H et E staining. The synovial cells of RA patients were isolated and randomly divided into Control, Blank and miRNA groups. The cell apoptosis of difference groups were measured by flow cytometry; the TNF-α and IL-1β concentrations of difference groups were measured by Elisa assay; TLR4 and NF-κB proteins expressions were measured by WB assay and the correlation between TLR4 and miRNA-31 were evaluated by double luciferase target experiment. RESULTS The miRNA-31 gene expression was significantly suppressed in RA tissues (p<0.001); Compared with control group, the cell apoptosis rate of miRNA group was significantly suppressed (p<0.001); TNF-α and IL-1β concentrations were significantly down-regulation in culture fluid (p<0.001, respectively) and TLR4 and NF-κB proteins expressions were significantly depressed (p<0.001, respectively) in miRNA group. By double luciferase target experiment, the TLR4 was a target gene of miRNA-31. CONCLUSION miRNA-31 is a key role in synovial cells apoptosis induced by RA (Fig. 7, Ref. 23).
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28
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Wang J, Luo F, Feng Z, Li L, Bai Y, Ai X, Ma J, Zhang Z, Shi N. Immunogenicity and safety of purified vero cell rabies vaccine (PVRV) produced by Liaoning Cheng Da Co. under Zagreb 2-1-1 or 5-dose Essen regimen in Chinese adults aged 50 and above. Hum Vaccin Immunother 2017; 13:144-150. [PMID: 28045585 DOI: 10.1080/21645515.2016.1230260] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Two kinds of regimens (2-1-1 and 1-1-1-1-1) can be selected after Zagreb regimen(2-1-1)of PVRV was officially approved in Beijing in January 2015. Up to now, the subjects for most studies about the comparison between Zagreb and Essen regimen are under 50 y old, rarely at and above. Aging of the immune system may result in decreasing efficacy of vaccination, especially for adults aged above 65-70 y. This study compared the safety and immunogenicity of the Zagreb and Essen regimen in Chinese adults aged 50 and above with the goal to provide a supplemental data for this age group. METHODS A total of 114 cases were divided into 2 groups randomly, received PVRV under the Zagreb and Essen regimens respectively. Serum samples were collected at D0, D7, D14, D42, D180 and D365 to determine the rabies serum neutralizing antibody by rapid fluorescent focus inhibition test (RFFIT). Safety analyses were made by comparing the AEs in day-3, day-7, and day-(7 + 21) in Zagreb or day-(7 + 28) in Essen by gender and age cohorts. RESULTS 617 blood samples were obtained. Two groups showed similar immunogenicity, the neutralizing antibody titer of all subjects at D14 and D42 showed >0.5 IU/ml. Under the same regimen, Subjects ≥65 y had lower GMC than those who <65 years from D7 to D365 within 2 groups. This difference was significantly shown on D7, D14, D180 in Zagreb group, and on D180 in Essen group (t = 2.38, p = 0.02; t = 3.78, p < 0.001; t = 2.30, p = 0.03; t = 4.42, p < 0.001). Subjects<65 years had higher seroconversion rate compared to ≥65 y on D7, D180 and D365 in both 2 groups, this difference was also significantly shown on D180, D365 in Zagreb group and on D180 in Essen group (χ2 = 20.66, p < 0.001; χ2 = 6.56, p = 0.02; χ2 = 10.96, p = 0.002). Two regimens all showed favorable performances with mildly or common adverse events (AEs). The incidence of local AEs after 3 d in Essen group was higher than Zagreb group (χ2 = 9.69, p = 0.002). The most common local AE was pain, the incidences (8.8%) in Zagreb group was higher than Essen group (8.4%, χ2 = 5.12, p = 0.02). All AEs for Zagreb group and 52.3% of AEs for Essen group occurred during the first 72 hours. During the first 72 hours, subjects aged <65 in Zagreb group (16.26%) had higher incidences of AEs than Essen group (8.57%, χ2 = 4.54, p = 0.03), males in Zagreb group (16.05%) had higher incidence of AEs than Essen group (5.71%, χ2 = 5.34, p = 0.02). The incidences of AEs close in during the first 7 d. CONCLUSION The Zagreb and Essen regimens demonstrated the similar safety and efficacy of PVRV in Chinese adults aged 50 and above. People ≥65 y showed reduced immune response to both regimens. More AEs for the Zagreb regimen were observed within the first 72 hours, especially for male and people < 65 y.
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Affiliation(s)
- Jing Wang
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
| | - FengJi Luo
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
| | - ZiJian Feng
- b China Center for Disease Prevention and Control ; Beijing , China
| | - Li Li
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
| | - YunHua Bai
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
| | - Xing Ai
- c National Institutes for Food and Drug Control , Beijing , China
| | - JianXin Ma
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
| | - Zheng Zhang
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
| | - NianMin Shi
- a ChaoYang Center for Disease Prevention and Control , Beijing , China
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29
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Ding F, Guan XH, Kang K, Ding SJ, Huang LY, Xing XS, Sha S, Liu L, Wang XJ, Zhang XM, You AG, Du YH, Zhou H, Vong S, Zhang XD, Feng ZJ, Yang WZ, Li Q, Yin WW. Risk factors for bunyavirus-associated severe Fever with thrombocytopenia syndrome, china. PLoS Negl Trop Dis 2014; 8:e3267. [PMID: 25330383 PMCID: PMC4199554 DOI: 10.1371/journal.pntd.0003267] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 09/11/2014] [Indexed: 01/14/2023] Open
Abstract
Background Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease that is caused by a novel bunyavirus, referred to as SFTS virus. During January 2011 to December 2011 we conducted a case-control study in Henan, Hubei and Shandong Provinces of China to determine the risk factors for SFTS. Methods Case-patients were identified in hospitals and reported to provincial Centers for Disease Control and Prevention while being notified electronically to the National Surveillance System. Controls were randomly selected from a pool of patients admitted to the same hospital ward within one week of the inclusion of the cases. They were matched by age (+/−5 years) and gender. Results A total of 422 patients participated in the study including 134 cases and 288 matched controls. The median age of the cases was 58.8 years, ranging from 47.6 to 70.1 years; 54.5% were male. No differences in demographics were observed between cases and controls; however, farmers were frequent and more common among cases (88.8%) than controls (58.7%). In multivariate analysis, the odds for SFTS was 2.4∼4.5 fold higher with patients who reported tick bites or presence of tick in the living area. Other independent risk factors included cat or cattle ownership and reported presence of weeds and shrubs in the working environment. Conclusions Our findings support the hypothesis that ticks are important vectors of SFTS virus. Further investigations are warranted to understand the detailed modes of transmission of SFTS virus while vector management, education on tick bites prevention and personal hygiene management should be implemented for high-risk groups in high incidence areas. Since 2009, an emerging infectious disease which was identified as the severe fever with thrombocytopenia syndrome (SFTS) was reported in rural areas of Hubei, Shandong and Henan provinces in China. A novel bunyavirus designated severe fever with thrombocytopenia syndrome bunyavirus (SFTSV) had been identified to be the etiological cause of SFTS. But what risk factors lead to the disease is still not clear. Further investigations for risk factors are needed to effectively prevent and control the disease. Here we have designed case-control study to try to develop the risk factors of the spread of SFTSV. It is hoped that our research could provide epidemiological evidence for further study. Also help to determine the spread of the virus in the environment.
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Affiliation(s)
- Fan Ding
- Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Xu-Hua Guan
- Institute of Infectious Disease Control and Prevention, Hubei Provincial Center for Disease Control and Prevention, Hubei, P.R. China
| | - Kai Kang
- Institute of infection Disease Control and Prevention, Henan Provincial Center for Disease Control and Prevention, Zhengzhou, P.R. China
| | - Shu-Jun Ding
- Shandong Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Communicable Disease Control and Prevention, Jinan, China
| | - Li-Yong Huang
- Beijing Chaoyang District Center for Disease Control and Prevention, Beijing, China
| | - Xue-Sen Xing
- Institute of Infectious Disease Control and Prevention, Hubei Provincial Center for Disease Control and Prevention, Hubei, P.R. China
| | - Sha Sha
- Institute of Infectious Disease Control and Prevention, Hubei Provincial Center for Disease Control and Prevention, Hubei, P.R. China
| | - Li Liu
- Institute of Infectious Disease Control and Prevention, Hubei Provincial Center for Disease Control and Prevention, Hubei, P.R. China
| | - Xian-Jun Wang
- Shandong Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Communicable Disease Control and Prevention, Jinan, China
| | - Xiao-Mei Zhang
- Shandong Center for Disease Control and Prevention, Shandong Provincial Key Laboratory of Communicable Disease Control and Prevention, Jinan, China
| | - Ai-Guo You
- Institute of infection Disease Control and Prevention, Henan Provincial Center for Disease Control and Prevention, Zhengzhou, P.R. China
| | - Yan-Hua Du
- Institute of infection Disease Control and Prevention, Henan Provincial Center for Disease Control and Prevention, Zhengzhou, P.R. China
| | - Hang Zhou
- Division of Infectious Disease, Key Laboratory of Surveillance and Early-warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Sirenda Vong
- World Health Organization (WHO), Representative Office in China, Beijing, China
| | - Xiao-Dong Zhang
- Division of Infectious Disease, Key Laboratory of Surveillance and Early-warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zi-Jian Feng
- Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Wei-Zhong Yang
- Chinese Center for Disease Control and Prevention, Beijing, P.R. China
| | - Qun Li
- Chinese Center for Disease Control and Prevention, Beijing, P.R. China
- * E-mail: (QL); (WWY)
| | - Wen-Wu Yin
- Division of Infectious Disease, Key Laboratory of Surveillance and Early-warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing, China
- * E-mail: (QL); (WWY)
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Chen H, Yuan H, Gao R, Zhang J, Wang D, Xiong Y, Fan G, Yang F, Li X, Zhou J, Zou S, Yang L, Chen T, Dong L, Bo H, Zhao X, Zhang Y, Lan Y, Bai T, Dong J, Li Q, Wang S, Zhang Y, Li H, Gong T, Shi Y, Ni X, Li J, Zhou J, Fan J, Wu J, Zhou X, Hu M, Wan J, Yang W, Li D, Wu G, Feng Z, Gao GF, Wang Y, Jin Q, Liu M, Shu Y. Clinical and epidemiological characteristics of a fatal case of avian influenza A H10N8 virus infection: a descriptive study. Lancet 2014; 383:714-21. [PMID: 24507376 DOI: 10.1016/s0140-6736(14)60111-2] [Citation(s) in RCA: 463] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Human infections with different avian influenza viruses--eg, H5N1, H9N2, and H7N9--have raised concerns about pandemic potential worldwide. We report the first human infection with a novel reassortant avian influenza A H10N8 virus. METHODS We obtained and analysed clinical, epidemiological, and virological data from a patient from Nanchang City, China. Tracheal aspirate specimens were tested for influenza virus and other possible pathogens by RT-PCR, viral culture, and sequence analyses. A maximum likelihood phylogenetic tree was constructed. FINDINGS A woman aged 73 years presented with fever and was admitted to hospital on Nov 30, 2013. She developed multiple organ failure and died 9 days after illness onset. A novel reassortant avian influenza A H10N8 virus was isolated from the tracheal aspirate specimen obtained from the patient 7 days after onset of illness. Sequence analyses revealed that all the genes of the virus were of avian origin, with six internal genes from avian influenza A H9N2 viruses. The aminoacid motif GlnSerGly at residues 226-228 of the haemagglutinin protein indicated avian-like receptor binding preference. A mixture of glutamic acid and lysine at residue 627 in PB2 protein--which is associated with mammalian adaptation--was detected in the original tracheal aspirate samples. The virus was sensitive to neuraminidase inhibitors. Sputum and blood cultures and deep sequencing analysis indicated no co-infection with bacteria or fungi. Epidemiological investigation established that the patient had visited a live poultry market 4 days before illness onset. INTERPRETATION The novel reassortant H10N8 virus obtained is distinct from previously reported H10N8 viruses. The virus caused human infection and could have been associated with the death of a patient. FUNDING Emergency Research Project on human infection with avian influenza H7N9 virus, the National Basic Research Program of China, and the National Mega-projects for Infectious Diseases.
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Affiliation(s)
- HaiYing Chen
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Hui Yuan
- Jiangxi Provincial Disease Control and Prevention, Nanchang, China
| | - Rongbao Gao
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | | | - Dayan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Ying Xiong
- Jiangxi Provincial Disease Control and Prevention, Nanchang, China
| | - GuoYin Fan
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Fan Yang
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaodan Li
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Jianfang Zhou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Shumei Zou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Lei Yang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Tao Chen
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Libo Dong
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Hong Bo
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Xiang Zhao
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Ye Zhang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Yu Lan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Tian Bai
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Jie Dong
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Qun Li
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - ShiWen Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - YanPing Zhang
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui Li
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Tian Gong
- Jiangxi Provincial Disease Control and Prevention, Nanchang, China
| | - Yong Shi
- Jiangxi Provincial Disease Control and Prevention, Nanchang, China
| | - Xiansheng Ni
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Jianxiong Li
- Jiangxi Provincial Disease Control and Prevention, Nanchang, China
| | - Jun Zhou
- Jiangxi Provincial Disease Control and Prevention, Nanchang, China
| | - Jiyi Fan
- Donghu District Center for Disease Control and Prevention, Nanchang, China
| | - Jingwen Wu
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Xianfeng Zhou
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Maohong Hu
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Jianguo Wan
- The First Hospital of Nanchang, Nanchang, China
| | - WeiZhong Yang
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - DeXin Li
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - Guizhen Wu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China
| | - ZiJian Feng
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - George F Gao
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yu Wang
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Qi Jin
- MOH Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingbin Liu
- Nanchang City Disease Control and Prevention, Nanchang, China
| | - Yuelong Shu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
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Luo HM, Zhang Y, Wang XQ, Yu WZ, Wen N, Yan DM, Wang HQ, Wushouer F, Wang HB, Xu AQ, Zheng JS, Li DX, Cui H, Wang JP, Zhu SL, Feng ZJ, Cui FQ, Ning J, Hao LX, Fan CX, Ning GJ, Yu HJ, Wang SW, Liu DW, Wang DY, Fu JP, Gou AL, Zhang GM, Huang GH, Chen YS, Mi SS, Liu YM, Yin DP, Zhu H, Fan XC, Li XL, Ji YX, Li KL, Tang HS, Xu WB, Wang Y, Yang WZ. Identification and control of a poliomyelitis outbreak in Xinjiang, China. N Engl J Med 2013; 369:1981-90. [PMID: 24256377 DOI: 10.1056/nejmoa1303368] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND The last case of infection with wild-type poliovirus indigenous to China was reported in 1994, and China was certified as a poliomyelitis-free region in 2000. In 2011, an outbreak of infection with imported wild-type poliovirus occurred in the province of Xinjiang. METHODS We conducted an investigation to guide the response to the outbreak, performed sequence analysis of the poliovirus type 1 capsid protein VP1 to determine the source, and carried out serologic and coverage surveys to assess the risk of viral propagation. Surveillance for acute flaccid paralysis was intensified to enhance case ascertainment. RESULTS Between July 3 and October 9, 2011, investigators identified 21 cases of infection with wild-type poliovirus and 23 clinically compatible cases in southern Xinjiang. Wild-type poliovirus type 1 was isolated from 14 of 673 contacts of patients with acute flaccid paralysis (2.1%) and from 13 of 491 healthy persons who were not in contact with affected persons (2.6%). Sequence analysis implicated an imported wild-type poliovirus that originated in Pakistan as the cause of the outbreak. A public health emergency was declared in Xinjiang after the outbreak was confirmed. Surveillance for acute flaccid paralysis was enhanced, with daily reporting from all public and private hospitals. Five rounds of vaccination with live, attenuated oral poliovirus vaccine (OPV) were conducted among children and adults, and 43 million doses of OPV were administered. Trivalent OPV was used in three rounds, and monovalent OPV type 1 was used in two rounds. The outbreak was stopped 1.5 months after laboratory confirmation of the index case. CONCLUSIONS The 2011 outbreak in China showed that poliomyelitis-free countries remain at risk for outbreaks while the poliovirus circulates anywhere in the world. Global eradication of poliomyelitis will benefit all countries, even those that are currently free of poliomyelitis.
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Affiliation(s)
- Hui-Ming Luo
- From the Chinese Center for Disease Control and Prevention, National Immunization Program (H.-M.L., W.-Z.Y., N.W., H.-Q.W., H.-B.W., J.-S.Z., F.-Q.C., L.-X.H., C.-X.F., G.-J.N., D.-W.L., G.-M.Z., Y.-S.C., Y.-M.L., D.-P.Y., K.-L.L., Y.W., W.-Z.Y.), the Ministry of Health Key Laboratory for Medical Virology, National Institute for Viral Disease Control and Prevention (Y.Z., D.-M.Y., D.-X.L., S.-L.Z., S.-W.W., D.-Y.W., G.-H.H., H.Z., Y.-X.J., W.-B.X.), the Health Emergency Control Center (Z.-J.F.), and the Division of Infectious Disease Control, Chinese Center for Disease Control and Prevention (H.-J.Y.) - all in Beijing; Xinjiang Uyghur Autonomous Region Center for Disease Control and Prevention (X.-Q.W., F.W., H.C., J.N., A.G., X.-C.F., X.-L.L., H.-S.T.) and the Center for Disease Control and Prevention of the Xinjiang Production and Construction Corps (J.-P.W., J.-P.F., S.-S.M.), Urumqi; and Shandong Center for Disease Control and Prevention, Jinan (A.-Q.X.) - all in China
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Fang LQ, Li XL, Liu K, Li YJ, Yao HW, Liang S, Yang Y, Feng ZJ, Gray GC, Cao WC. Mapping spread and risk of avian influenza A (H7N9) in China. Sci Rep 2013; 3:2722. [PMID: 24072008 PMCID: PMC3784030 DOI: 10.1038/srep02722] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 09/04/2013] [Indexed: 12/26/2022] Open
Abstract
The outbreak of human infections with an emerging avian influenza A (H7N9) virus occurred in China in early 2013. It remains unknown what and how the underlying risk factors were involved in the bird-to-human cross-species transmission. To illustrate the dynamics of viral spread, we created a thematic map displaying the distribution of affected counties and plotted epidemic curves for the three most affected provinces and the whole country. We then collected data of agro-ecological, environmental and meteorological factors at the county level, and used boosted regression tree (BRT) models to examine the relative contribution of each factor and map the probability of occurrence of human H7N9 infection. We found that live poultry markets, human population density, irrigated croplands, built-up land, relative humidity and temperature significantly contributed to the occurrence of human infection with H7N9 virus. The discriminatory ability of the model was up to 97.4%. A map showing the areas with high risk for human H7N9 infection was created based on the model. These findings could be used to inform targeted surveillance and control efforts in both human and animal populations to reduce the risk of future human infections.
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Affiliation(s)
- Li-Qun Fang
- The State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, P. R. China
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Huang LY, Zhou H, Yin WW, Wang Q, Sun H, Ding F, Man TF, Li Q, Feng ZJ. [The current epidemic situation and surveillance regarding hemorrhagic fever with renal syndrome in China, 2010]. Zhonghua Liu Xing Bing Xue Za Zhi 2012; 33:685-691. [PMID: 22968017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To analyze the surveillance data on hemorrhagic fever with renal syndrome (HFRS) including the epidemiological characteristics and trend of the disease, in 2010. METHODS Descriptive methods were conducted to analyze the surveillance data in 2010 which were collected from the internet-based National Notifiable Disease Reporting System and 40 HFRS sentinels in China. RESULTS There were 9526 cases of HFRS reported in 2010 in the country with an annual morbidity of 0.71/10(5), which was higher than that reported in 2009. And the case fatality rate in 2010 was 1.24%. During the year 2010, most cases were reported in spring and autumn-winter season, with November as the peak month. The proportion of cases reported in autumn-winter season was higher than that in spring. The number of cases reported in males was higher than that in females among all the age groups, and similar pattern of mortality could be seen in most of the age groups. The percentage of cases over 60 years old had increased in recent years. Farmers were still under the highest risk. Density and the virus-carrying rate of animal hosts, as well as the infection rate were relatively stable and similar to the previous findings. As to the prevailing species, Apodemus agrarius and Rattus norvegicus were still the most common and leading animal hosts. However, the dominant species in sentinel of Yunnan were Rattus flavipectus and Eothenomys miletus respectively, and a new hantavirus called LUXV was found, namely Eothenomys miletus. CONCLUSION HFRS cases were widely distributed in most provinces of China, but cases mainly focus on certain areas and present the nature of aggregation. The risk of outbreak could not be ruled out for variety of factors. Population characteristics and seasonal fluctuation had been changing.
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Affiliation(s)
- Li-Yong Huang
- Office for Disease Control and Prevention, Beijing, China
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Zhou XF, Feng ZJ, Yang WZ, Li XS. [Application of wavelet neural networks model to forecast incidence of syphilis]. Sichuan Da Xue Xue Bao Yi Xue Ban 2011; 42:544-547. [PMID: 21866645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To apply Wavelet Neural Networks (WNN) model to forecast incidence of Syphilis. METHODS Back Propagation Neural Network (BPNN) and WNN were developed based on the monthly incidence of Syphilis in Sichuan province from 2004 to 2008. The accuracy of forecast was compared between the two models. RESULTS In the training approximation, the mean absolute error (MAE), rooted mean square error (RMSE) and mean absolute percentage error (MAPE) were 0.0719, 0.0862 and 11.52% respectively for WNN, and 0.0892, 0.1183 and 14.87% respectively for BPNN. The three indexes for generalization of models were 0.0497, 0.0513 and 4.60% for WNN, and 0.0816, 0.1119 and 7.25% for BPNN. CONCLUSION WNN is a better model for short-term forecasting of Syphilis.
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Affiliation(s)
- Xian-Feng Zhou
- Department of Health Statistics, West China School of Public Health, Sichuan University, Chengdu 610041, China
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Zhang YL, Ma Y, Yang WZ, Feng ZJ, Li XS. [Application of Rogerson spatial pattern surveillance in monitoring infectious diseases: parameter setting and choice of scales of analysis]. Sichuan Da Xue Xue Bao Yi Xue Ban 2011; 42:548-569. [PMID: 21866646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To set up appropriate parameters and scales of analysis for monitoring infectious diseases using Rogerson spatial pattern surveillance method. METHODS Hepatitis data in Henan provinces from 2006 to 2009 were tested using Rogerson spatial patterns surveillance method. RESULTS When the parameters were set with n0 = 12, K= 0.5, H = 7.17, r = 25 and analyzed at city level, 26 alarms were triggered. When the parameters were set with n0 = 4, K = 0.5, H = 8.26, r = 15 and analyzed at county level, 115 alarms were triggered. CONCLUSION K and a need to be set first, followed by n0 and r with adaptation to the anticipated numbers of alarm. Then, the parameters of ARL0, ARL1, and H can be calculated. For the surveillance of hepatitis A, county level analysis is more reasonable than city level.
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Affiliation(s)
- Yan-Li Zhang
- Department of Health Statistics, West China School of Public Health, Sichuan University, Chengdu 610041, China
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Yu XJ, Liang MF, Zhang SY, Liu Y, Li JD, Sun YL, Zhang L, Zhang QF, Popov VL, Li C, Qu J, Li Q, Zhang YP, Hai R, Wu W, Wang Q, Zhan FX, Wang XJ, Kan B, Wang SW, Wan KL, Jing HQ, Lu JX, Yin WW, Zhou H, Guan XH, Liu JF, Bi ZQ, Liu GH, Ren J, Wang H, Zhao Z, Song JD, He JR, Wan T, Zhang JS, Fu XP, Sun LN, Dong XP, Feng ZJ, Yang WZ, Hong T, Zhang Y, Walker DH, Wang Y, Li DX. Fever with thrombocytopenia associated with a novel bunyavirus in China. N Engl J Med 2011; 364:1523-32. [PMID: 21410387 PMCID: PMC3113718 DOI: 10.1056/nejmoa1010095] [Citation(s) in RCA: 1126] [Impact Index Per Article: 86.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Heightened surveillance of acute febrile illness in China since 2009 has led to the identification of a severe fever with thrombocytopenia syndrome (SFTS) with an unknown cause. Infection with Anaplasma phagocytophilum has been suggested as a cause, but the pathogen has not been detected in most patients on laboratory testing. METHODS We obtained blood samples from patients with the case definition of SFTS in six provinces in China. The blood samples were used to isolate the causal pathogen by inoculation of cell culture and for detection of viral RNA on polymerase-chain-reaction assay. The pathogen was characterized on electron microscopy and nucleic acid sequencing. We used enzyme-linked immunosorbent assay, indirect immunofluorescence assay, and neutralization testing to analyze the level of virus-specific antibody in patients' serum samples. RESULTS We isolated a novel virus, designated SFTS bunyavirus, from patients who presented with fever, thrombocytopenia, leukocytopenia, and multiorgan dysfunction. RNA sequence analysis revealed that the virus was a newly identified member of the genus phlebovirus in the Bunyaviridae family. Electron-microscopical examination revealed virions with the morphologic characteristics of a bunyavirus. The presence of the virus was confirmed in 171 patients with SFTS from six provinces by detection of viral RNA, specific antibodies to the virus in blood, or both. Serologic assays showed a virus-specific immune response in all 35 pairs of serum samples collected from patients during the acute and convalescent phases of the illness. CONCLUSIONS A novel phlebovirus was identified in patients with a life-threatening illness associated with fever and thrombocytopenia in China. (Funded by the China Mega-Project for Infectious Diseases and others.).
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Affiliation(s)
- Xue-Jie Yu
- Chinese Center for Disease Control and Prevention, Beijing, China
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Yin F, Feng ZJ, Li XS. [Application of Google Earth in the three dimensional visualization (TDV) of the warnings signaled by early warning system of infectious disease]. Zhonghua Liu Xing Bing Xue Za Zhi 2011; 32:396-399. [PMID: 21569675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The purpose of this article was to investigate the application of Google Earth (GE) in the Three Dimensional Visualization (TDV) of the warnings signaled by early warning system of infectious disease. As an example, the prospective space-time scan statistics was used by mimicking daily prospective analyses of bacillary dysentery data from Shanghai municipality, Zhejiang province and Jiangsu province in 2005. Then one of the warnings was picked to illustrate the visualization of GE. GE could vividly display the results in three dimensions containing the complex information including date, areas, observed numbers, expected numbers etc. GE seemed a useful tool for infectious disease surveillance and had potential important values in reflecting the emergency response situation. The development of integrated system which consisted of GE, the infectious disease reporting system and cluster detection methods need to be emphasized for further research.
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Affiliation(s)
- Fei Yin
- Public Health Department of Sichuan University, Chengdu 610041, China
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Zhang ZW, Feng ZJ, Li XS. [A study regarding the applicability of WSARE algorithms in the early warning system of infectious disease outbreaks]. Zhonghua Liu Xing Bing Xue Za Zhi 2010; 31:1306-1310. [PMID: 21176699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
To investigate the application of WSARE (What's Strange About Recent Events) algorithm in early warning on outbreaks of infectious diseases and to explore the multi-dimensional statistical methods for the detection of infectious diseases outbreak. Using WSARE algorithms based on historical data and Bayesian Network as baseline respectively, to analyze data on measles by mimicking the real-time monitoring and early warning system in Bao'an district, Shenzhen city, in 2007. WSARE algorithms were considered to be effective and timely in detecting the abnormally increase of measles among special population. WSARE algorithm could timely detect the abnormal increase of diseases among special local populations, thus having important value in the application of early warning system during the outbreak of infectious diseases.
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Affiliation(s)
- Zi-Wu Zhang
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
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Xu Z, Liu B, Zhang D, Yin WW, Li Q, Wang DM, He JF, Feng ZJ. [Self-management behaviors among children after exposure to rabies in two severe rabies epidemic areas of China]. Zhonghua Liu Xing Bing Xue Za Zhi 2010; 31:1264-1266. [PMID: 21176689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To understand the situation of rabies exposure and self-management behaviors among primary school students from rabies epidemic areas in China. METHODS This population-based investigation was conducted in Guizhou and Guangdong provinces which had been severe epidemic areas of rabies in China from January 2007 to May 2008. Primary schools from two prefectural, two county, four township and four village levels were selected in the 2 provinces. Students were sampled from each grade of the 12 schools to collect information on post-exposure prophylaxis. RESULTS In the 2408 primary school students interviewed, 290 person/times exposure were found from 2007 to 2008. The self wound-treatment rates was 47.93%, with 16.55% of them went to the clinic for care-seeking initiatively and 63.79% informed their parents or teachers. However 23.10% of the students did nothing after exposure. Students in Guangdong province had lower exposure rate and higher rate of good management behaviors than in Guizhou. No significant statistical difference was found between the self-management behaviors among male and female students or among different levels of primary schools. The proportion of disinfection on wounds with alcohol and seeking medical treatment in rabies clinic initiatively were both low in all grades of the students but the proportion of telling their parents or teachers about the exposure among children was high in all grades of students. CONCLUSION Some students after rabies exposure did not have any disposal in Guangdong and Guizhou provinces. Related education should be strengthened.
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Affiliation(s)
- Zhen Xu
- Office of Disease Control and Emergency Response, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Wu J, Liu SZ, Dong SS, Dong XP, Zhang WL, Lu M, Li CG, Zhou JC, Fang HH, Liu Y, Liu LY, Qiu YZ, Gao Q, Zhang XM, Chen JT, Zhong X, Yin WD, Feng ZJ. Safety and immunogenicity of adjuvanted inactivated split-virion and whole-virion influenza A (H5N1) vaccines in children: A phase I–II randomized trial. Vaccine 2010; 28:6221-7. [DOI: 10.1016/j.vaccine.2010.07.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Revised: 06/25/2010] [Accepted: 07/04/2010] [Indexed: 01/01/2023]
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Song M, Tang Q, Wang DM, Mo ZJ, Guo SH, Li H, Tao XY, Rupprecht CE, Feng ZJ, Liang GD. Epidemiological investigations of human rabies in China. BMC Infect Dis 2009; 9:210. [PMID: 20025742 PMCID: PMC2803182 DOI: 10.1186/1471-2334-9-210] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2009] [Accepted: 12/21/2009] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The epidemic of rabies showed a rising trend in China in recent years. To identify the potential factors involved in the emergence, we investigated and analyzed the status and characteristics of human rabies between 1996 and 2008. Moreover, the status of rabies infection and vaccination in dogs, and prophylaxis of humans after rabies exposure were analyzed. METHODS Human rabies data in China between 1996 and 2008 collected from the annual reports of Chinese Center for Disease Control and Prevention (China CDC) were analyzed. To investigate the status of dogs and postexposure prophylaxis (PEP) of humans, brain specimens of domestic dogs were collected and detected, and the demographic details, exposure status and PEP of rabies patients were obtained in 2005 and 2006 in Guangxi, Hunan and Guizhou provinces. RESULTS The results showed 19,806 human rabies cases were reported in China from 1996 to 2008, with an average of 1,524 cases each year, and the incidence almost was rising rapidly, with the peak in 2007 (3,300 cases). It was notable that nearly 50% of the total rabies cases nationwide were reported in Guangxi, Hunan and Guizhou provinces. In these three provinces, the rabies infection rate in dogs was 2.3%, and 60% investigated cities had a dog vaccination rate of below 70%; among the 315 recorded human cases, 66.3% did not receive any PEP at all, 27.6% received inadequate PEP, and only 6.0% received a full regime of PEP. CONCLUSIONS In recent years, rabies is reemerging and becoming a major public-health problem in China. Our analysis showed that unsuccessful control of dog rabies and inadequate PEP of patients were the main factors leading to the high incidence of human rabies in China, then there are following suggestions: (1) Strict control of free-ranging dogs and mandatory rabies vaccination should be enforced. (2)Establishing national animal rabies surveillance network is imperative. (3) PEP should be decided to initiate or withhold according to postmortem diagnosis of the biting animal. (4) The cost of PEP should be decreased or free, especially in rural areas. (5)Education of the public and health care staff should be enhanced.
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Affiliation(s)
- Miao Song
- State Key Laboratory for Molecular Virology and Genetic Engineering, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
- Liupanshui Vocational and Technical College, Liupanshui 553001, PR China
| | - Qing Tang
- State Key Laboratory for Molecular Virology and Genetic Engineering, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Ding-Ming Wang
- Guizhou Center for Disease Control and Prevention, Guiyang 550004, PR China
| | - Zhao-Jun Mo
- Guangxi Center for Disease Control and Prevention, Nanning 530028, PR China
| | - Shou-Heng Guo
- Hunan Center for Disease Control and Prevention, Changsha 410005, PR China
| | - Hao Li
- State Key Laboratory for Molecular Virology and Genetic Engineering, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Xiao-Yan Tao
- State Key Laboratory for Molecular Virology and Genetic Engineering, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Charles E Rupprecht
- National Center for Zoonotic, Vector-Borne and Enteric Diseases, Centers for Disease Control and Prevention, Atlanta, GA. 30333, USA
| | - Zi-Jian Feng
- Office for Disease Control and Emergency Response, Chinese Center for Disease Control and Prevention, Beijing 100050, PR China
| | - Guo-Dong Liang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
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Zhang X, Gao YJ, Feng ZJ, Wang ZJ, Ran L. Analysis of the pathogens in infectious diarrhea (other than cholera, dysentery, typhoid and paratyphoid) cases reported in China in 2008. Shijie Huaren Xiaohua Zazhi 2009; 17:3370-3375. [DOI: 10.11569/wcjd.v17.i32.3370] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze the etiological and epidemiological characteristics of infectious diarrhea (other than cholera, dysentery, typhoid and paratyphoid) cases reported in China in 2008.
METHODS: The data of infectious diarrhea (other than cholera, dysentery, typhoid and paratyphoid) cases reported in China in 2008 were retrieved from Chinese Information System for Diseases Control and Prevention and analyzed.
RESULTS: Of more than 70 million cases of infectious diarrhea (other than cholera, dysentery, typhoid and paratyphoid) reported, 50.98% of the cases and 69.64 % of the deaths occurred in children aged ≤ 5 years. In nearly 30000 cases with pathogen information, viruses (90.65%) and bacteria (8.97%) were found to be major pathogens. In bacterial diarrhea, Vibrio parahaemolyticus (65.26%) and Salmonella (20.70%) are major pathogens, accounting for 85.96%. In viral diarrhea, rotavirus (92.75%) and adenovirus (4.34%) are major pathogens, accounting for 97.09%.
CONCLUSION: Infectious diarrhea (other than cholera, dysentery, typhoid and paratyphoid) mainly affects children aged less than 5 years. The diagnostic information concerning the pathogens of infectious diarrhea has important implications for public health. However, the quality and timeliness of the reported information need to be improved, and the data need to be enriched.
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Wu J, Fang HH, Chen JT, Zhou JC, Feng ZJ, Li CG, Qiu YZ, Liu Y, Lu M, Liu LY, Dong SS, Gao Q, Zhang XM, Wang N, Yin WD, Dong XP. Immunogenicity, safety, and cross-reactivity of an inactivated, adjuvanted, prototype pandemic influenza (H5N1) vaccine: a phase II, double-blind, randomized trial. Clin Infect Dis 2009; 48:1087-95. [PMID: 19281330 DOI: 10.1086/597401] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Avian influenza A virus H5N1 has the potential to cause a pandemic. Adjuvants and whole-virion vaccines are regarded as antigen sparing for pandemic vaccines. METHODS A double-blind, randomized trial was performed from 28 August to 22 December 2007 in 402 adults; 301 adults were randomly assigned to receive 2 doses of an inactivated, aluminum-adjuvanted, whole-virion H5N1 vaccine containing 5, 10, or 15 microg of hemagglutinin per dose 28 days apart, and 101 of them received 2 doses of 10 microg of vaccine 14 days apart. The vaccine was manufactured from the recombinant A/Vietman/1194/2004 (NIBRG14) strain. Blood samples were collected for hemagglutination inhibition and microneutralization assays. RESULTS All formulations were well tolerated, with no serious adverse events. Most local and systemic reactions were mild or moderate. Immune responses were induced after 1 dose in all vaccination groups. The highest immune response was seen after 2 doses of 15 microg of vaccine, with 90% and 100% seroconversion rates and 90% and 100% of participants having a titer of > or = 1:40 for hemagglutination inhibition and microneutralization assays, respectively. Both the 10- and 15-microg doses met or exceeded European Union licensure criteria. Generally, higher immune responses were elicited in participants vaccinated 28 days apart than those vaccinated 14 days apart. Cross-reaction assays showed that after 2 doses of 10 microg of vaccine, 98% and 87% of participants had a microneutralization titer of > or = 1:40 against heterologous Indonesia and Anhui strains, respectively. CONCLUSIONS The inactivated, aluminum-adjuvanted, whole-virion H5N1 vaccine not only showed good immunogenicity and safety but also elicited significant cross-reactivity against heterologous H5N1 strains in clade 2. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT00535665.
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Affiliation(s)
- Jiang Wu
- Beijing Centers for Diseases Control and Prevention, Beijing, China
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Li KL, Feng ZJ, Ni DX. [Study on the timeliness of detection and reporting on public health emergency events in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2009; 30:265-268. [PMID: 19642383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To analyze the timeliness of detection and reporting on public health emergency events, and to explore the effective strategies for improving the relative capacity on those issues. METHODS We conducted a retrospective survey on 3275 emergency events reported through Public Health Emergency Events Surveillance System from 2005 to the first half of 2006. Developed by county Centers for Disease Control and Prevention, a uniformed self-administrated questionnaire was used to collect data, which would include information on the detection, reporting of the events. RESULTS For communicable diseases events, the median of time interval between the occurrence of first case and the detection of event was 6 days (P25 = 2, P75 = 13). For food poisoning events and clusters of disease with unknown origin, the medians were 3 hours (P25, P75 = 16) and 1 days (P25 = 0, P75 = 5). 71.54% of the events were reported by the discoverers within 2 hours after the detection. CONCLUSION In general, the ranges of time intervals between the occurrence, detection or reporting of the events were different, according to the categories of events. The timeliness of detection and reporting of events could have been improved dramatically if the definition of events, according to their characteristics, had been more reasonable and accessible, as well as the improvement of training program for healthcare staff and teachers.
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Affiliation(s)
- Ke-Li Li
- 'Tai' an Center for Disease Control and Prevention, Tai' an 271000, China
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Zhao YW, Feng ZJ. [The meta analysis on the safety and immunogenicity of domestic and imported split influenza virus vaccines]. Zhongguo Yi Miao He Mian Yi 2009; 15:19-26. [PMID: 20077670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To compare the safety and immunogenicity between domestic and imported, imported and imported split influenza virus vaccine in Chinese population. METHODS The published studies during January 1996 and June 2008 on the comparison between split influenza virus vaccine were screened and evaluated. The meta analysis was performed on safety and immunogenicity using fixed model or random model according the heterogeneity of the studies. RESULTS 12 studies which were all random controlled trials between split vaccine were included. 10 trials were between domestic and imported vaccine, and 2 trials were between imported and imported vaccine. For 10 domestic and imported vaccine trials, the local reaction pooled OR = 0.81, 95% CI (0.59, 1.11); the systemic reaction the pooled OR = 0.78, 95% CI (0.50, 1.03); the H1N1 subtype seroconversion pooled OR = 0.94, 95% CI (0.78, 1.14); the H3N2 subtype seroconversion pooled OR = 1.01, 95% CI (0.87,1.17); the B type seroconversion total OR = 1.35, 95% CI (0.98,1.85). For 2 imported and imported vaccine trials,the local reaction pooled OR = 1.19, 95% CI (0.60, 2.37); the systemic reaction the pooled OR = 1.15, 95% CI (0.71,1.87); the H1N1 subtype seroconversion pooled OR = 1.27, 95% CI (0.37, 4.37); the H3N2 subtype seroconversion pooled OR = 1.29, 95% CI (0.39, 4.33); the B type seroconversion pooled OR = 0.95, 95% CI (0.46, 1.37). CONCLUSIONS were no statistical difference on the safety and immunogenicity between domestic and imported, imported and imported split influenza vaccine in Chinese population.
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Affiliation(s)
- Yan-Wei Zhao
- Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Zeng G, Feng ZJ. [Situation analysis and prospect of infectious disease in Wenchuan area during earthquake disaster]. Zhonghua Liu Xing Bing Xue Za Zhi 2008; 29:521. [PMID: 19040027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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Yi L, Lin JY, Gao Y, Feng ZJ, Wang DX. Detection of human cytomegalovirus in the atherosclerotic cerebral arteries in Han population in China. Acta Virol 2008; 52:99-106. [PMID: 18564896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The association of atherosclerosis (AS) and Human cytomegalovirus (HCMV) infection was studied. AS plays an important role in the brain stroke and HCMV infection is supposed to be involved in the process of atherosclerotic formation. The presence of HCMV DNA and antigens was examined in the internal carotid arteries collected from 35 patients with ischemic stroke and from 20 patients from the control population. All patients belonged to the ethnic Han population in China. Three methods, immunohistochemistry (IHC), hybridization in situ (HIS), and PCR were used to detect the HCMV immediate early (IE) and late (L) antigens as well as viral DNA in vessel walls. Levels of HCMV IE gene/protein were significantly higher in the stroke group than in control group detected by the three methods (IHC 34.3% vs. 10.0%; HIS 40.0% vs. 10.0; PCR 60.0% vs. 30.0%). However, there was no significant difference in the levels of HCMV L gene/protein between these two groups of patients (IHC 11.4% vs. 5.0%; HIS 11.4% vs. 10.0%; PCR 20.0% vs. 20.0%). We concluded that the presence of HCMV IE antigen and HCMV DNA in the vessel wall was associated with the pathological process of AS formation.
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Affiliation(s)
- L Yi
- Department of Neurology, Beijieng Friendship Hospital, Capital Medical University, 95 Yong'an Street, Xuan Wu District, Beijing, 100050 PR China
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Sheng L, Zuo SY, Xie J, Qi YL, Tong YB, Tang GP, Zhou J, Zhang DY, Long CB, Du W, Feng ZJ. Feasibility study of enforcing immunization certificate check before primary school or kindergarten enrollment in Guizhou Province, China. Biomed Environ Sci 2007; 20:357-365. [PMID: 18188986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To study the feasibility of enforcing immunization certificate check before children enroll in primary schools or kindergartens in Guizhou Province. METHODS Quantitative and qualitative studies were conducted. The multi-stage and cluster sampling approach was adopted for the quantitative part of the study. A questionnaire was designed and 996 children and their keepers were interviewed. Principals, doctors or teachers of the primary schools, directors and child care nurses of kindergarten, and staff of immunization agencies were invited to take part in 12 focus group discussions; meanwhile, face-to-face individual in-depth interviews with 16 officials of the Health, Education and Governmental Departments at various levels were conducted. RESULTS The total number of subjects was 996. 16.7% of the children in the study completed all the procedures of the National Immunization Programme. 34.3% of them had immunization certificates while the remainder 44.7% registered in immunization agencies. Factors, including the migrant children, doubt about vaccine efficiency, mother's occupation and educational background, knowledge of the National Immunization Programme on targeted vaccines, played an important role in obtaining or not immunization certificates. 95% of the keepers interviewed thought the immunization certificates were useful; 94.8% of them considered the check was critical while only 3.6% of them thought it unnecessary. The first reason from those who found it unnecessary was that they feared that repeated immunization might affect their children's health. The second reason was the cost of immunization, which some of them could not afford to pay. However, the Health Department expressed a favorable attitude to the checking scheme. Though the Education Department agreed that the scheme was essential, they worried that it would affect the enrollment rate. CONCLUSION In spite of the difficulty in administering immunization certificate check, the effort would be rewarding for raising the immunization coverage rate among the children in Guizhou Province.
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Affiliation(s)
- Li Sheng
- Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100005, China.
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Liu QL, Li XS, Feng ZJ, Ma JQ. [Study on the application of Knox method to temporal-spatial cluster for infectious diseases]. Zhonghua Liu Xing Bing Xue Za Zhi 2007; 28:802-805. [PMID: 18080571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE Application of Knox method was discussed in exploring temporal-spatial cluster for infectious diseases. METHODS The theory of Knox method was introduced in detail. As an example, the temporal-spatial cluster of epidemic cerebrospinal meningitis cases from April to May in 2005 was explored in Beijing and the statistical process of Knox method was clearly demonstrated with related results well interpreted. RESULTS Only when time and distance threshold values were set as 13 days and 29.67 km, potential temporal-spatial cluster could be detected in epidemic cerebrospinal meningitis cases. CONCLUSION According to the characteristics of the epidemics, under Knox method, if appropriate threshold values of time and distance were chosen, information on temporal-spatial cluster of infectious diseases could be obtained. According to the records of different time and distance threshold values, the nature of an infectious disease might be explored. Thus Knox method could help us to strengthen the early warning system on infectious disease control strategy.
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Affiliation(s)
- Qiao-Lan Liu
- Department of Health Statistics, School of Public Health, Sichuan University, Chengdu 610041, China
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Yin F, Li XS, Feng ZJ, Ma JQ. [The application of the prospective space-time statistic in early warning of infectious disease]. Zhonghua Yu Fang Yi Xue Za Zhi 2007; 41 Suppl:155-8. [PMID: 17767885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
OBJECTIVE To investigate the application of prospective space-time scan statistic in the early stage of detecting infectious disease outbreaks. METHODS The prospective space-time scan statistic was tested by mimicking daily prospective analyses of bacillary dysentery data of Chengdu city in 2005 (3212 cases in 102 towns and villages). And the results were compared with that of purely temporal scan statistic. RESULTS The prospective space-time scan statistic could give specific messages both in spatial and temporal. The results of June indicated that the prospective space-time scan statistic could timely detect the outbreaks that started from the local site, and the early warning message was powerful (P = 0.007). When the merely temporal scan statistic for detecting the outbreak was sent two days later, and the signal was less powerful (P = 0.039). CONCLUSION The prospective space-time scan statistic could make full use of the spatial and temporal information in infectious disease data and could timely and effectively detect the outbreaks that start from the local sites. The prospective space-time scan statistic could be an important tool for local and national CDC to set up early detection surveillance systems.
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Affiliation(s)
- Fei Yin
- West China School of Public Health, Sichuan University, Chengdu 610041, China
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