1.Analysis of Prevalence Season and Trend of Meningococcal Disease by Circular Distribution in China
Guijun NING ; Junhong LI ; Zundong YIN
Chinese Journal of Vaccines and Immunization 2008;0(06):-
Objective To analyze the prevalence season and trend of meningococcal disease in China by epidemic years from 2004 to 2008 in order to provide scientific basis for making strategies of meningococcal disease prevention and control.Methods The incidence numbers of meningococcal disease were calculated by weeks,epidemic years and areas.The seasonality and prevalence trends of meningococcal disease were analyzed by circular distribution.Results The incidence trend of meningococcal disease had obvious seasonality in China (P
2.Meta-analysis on Serological Effect of the Primary Vaccination for Japanese Encephalitis of the Literatures
Zundong YIN ; Huiming LUO ; Yixing LI
Chinese Journal of Vaccines and Immunization 2008;0(06):-
Objectives To summary and compare the different seroconversion rates after the primary vaccination for the Japanese encephalitis (JE),and to evaluate the serological effect of 3 kinds of JE vaccines.Method Searching "CHKD","Wanfang" database and "EMCC" databases,the studies of the immunogenicity after the primary JEV vaccination,all randomized controlled trials or non-randomized controlled trials were included,and statistical analysis were made by RevMan 4.2.10 software.Results A total of 12 literatures were included,7 studies had control groups.The seroconversion rates after the primary vaccination,JEV-L,JEV-I (Vero) and JEV-I(PHK),were 86% (95% CI:80% ~ 91%),83% (95% CI:72% ~ 94%) and 64% (95% CI:58% ~ 69%) respectively.Comparing the seroconversion rates of the 3 kinds of vaccines after primary immunization,the rate of JEV-I (Vero) was significantly higher than the rate of JEVI(PHK),other comparisons were no significant difference.Conclusion The serological effects of JEV-L and JEV-I (Vero) after the primary vaccination were higher than that of JEV-I (PHK).
3. Analysis of epidemic characteristics for meningococcal meningitis in China during 2015-2017
Junhong LI ; Dan WU ; Zundong YIN ; Yixing LI
Chinese Journal of Preventive Medicine 2019;53(2):159-163
Objective:
To analyze the characteristics of epidemiology and
4. Epidemiological analysis of viral hepatitis A in China, 2004-2015
Xiaojin SUN ; Fuzhen WANG ; Hui ZHENG ; Ning MIAO ; Qianli YUAN ; Huaqing WANG ; Zundong YIN ; Guomin ZHANG
Chinese Journal of Preventive Medicine 2017;51(12):1091-1096
Objective:
To analyze the epidemiological characteristics of hepatitis A cases in China from 2004 to 2015.
Methods:
Data of hepatitis A were reported through national notifiable disease information reporting system, which covered the 31 provinces (Hong Kong, Macau and Taiwan excluded). The inclusion criteria was: date of illness onset was between January 1st 2004 and December 31st 2015, the status of reported card was confirmed, the case was classified as laboratory confirmed or clinical diagnosed, the disease was Hepatitis A. The information such as sex, date of birth, date of illness onset, place of residence was collected. The data was divided into three phases, 2004-2007, 2008-2011, 2012-2015, which represented the phase before expanded program on immunization (EPI), first 4 years after EPI, second 4 years after EPI.
Results:
From 2004 to 2015, there were totally 574 697 hepatitis A cases in China, the mean annual incidence was 3.62/100 000. The risk ratio of hepatitis A in 2015 was 0.23 when compared with 2004. Sichuan, Xinjiang and Yunnan contributed to 27.27% of the total cases in China. In 2012-2015, the incidence of western (3.46/100 000) region was significantly higher than that in central (1.21/100 000) and eastern (1.08/100 000) regions. From 2004-2015, number of cases in each age group declined greatly, with number of cases declining from 43 711 to 5 938 in the age group of 5-9 years, from 29 722 to 3 438 in 10-14, from 23 212 to 3 646 in 15-19. The number of cases declined from 24 079 to 10 304 in the age group of 0-4 (declined by 57.21%), but in 2012-2015, the incidence of 0-4 age group was still the highest, with 77.72% cases in Xinjiang and Sichuan. Famers, students and scattered children accounted for 69.95% of total cases, with student cases declined from 24.08% (2004-2007) to 8.67% (2012-2015).
Conclusion
The incidence of hepatitis A in China is decreasing year by year, the risk has been decreasing to a relatively low level. However, in western regions and children under age five, the risk is still high. Precision intervention is needed for further prevention and control of hepatitis A.
5. Epidemiological analysis of viral hepatitis E in China, 2004-2017
Xiaojin SUN ; Guomin ZHANG ; Hui ZHENG ; Ning MIAO ; Huaqing WANG ; Zundong YIN ; Fuzhen WANG
Chinese Journal of Preventive Medicine 2019;53(4):382-387
Objective:
To analyze the changing epidemiological characteristics of hepatitis E cases in China, in order to promote in preventing and controlling hepatitis E.
Methods:
Data of hepatitis E and outbreaks reported through national notifiable diseases reporting system were analyzed from 2004 to 2017, but data of Hongkong, Macau and Taiwan were not included. Data of hepatitis E were divided into three phases as 2004-2007, 2008-2011 and 2012-2017, representing eight years before, four years before and years after the postmarketing of hepatitis E vaccine. Linear regression was used for analyzing the trend of hepatitis E, improved muster method was used for analyzing the seasonal intensity.
Results:
From 2004 to 2017, 329 519 hepatitis E cases were reported and the annual incidence were increasing from 1.27/100 000 to 2.10/100 000 (
6.Considerations on vaccines and immunization against COVID-19 for epidemic control in China.
Qian ZHANG ; FuZhen WANG ; Chao MA ; ZhiJie AN ; ZunDong YIN
Chinese Journal of Preventive Medicine 2021;55(12):1371-1376
The Delta variant of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has caused a new global wave of the Coronavirus Disease 2019 (COVID-19) pandemic. COVID-19 vaccines currently available in China show high effectiveness against severe illness and death. However, transmission of the virus is not fully stopped by vaccination alone, therefore, integrated vaccination and non-pharmacological interventions is necessary to prevent and control the epidemic in the near future. Further expanded vaccine coverage of primary doses as well as booster shots in China's domestic population are needed to reduce severe illness and death. In order to provide evidence necessary for adjusting and optimizing immunization strategies and pandemic control measures, it is essential to conduct research on vaccine effectiveness against emerging variants, persistence of vaccine-induced protection, surveillance of adverse event following immunization with large-scale vaccine use, and modelling studies on strategic combinations of vaccination and non-pharmacological interventions.
COVID-19
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COVID-19 Vaccines
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China
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Humans
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Immunization, Secondary
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SARS-CoV-2
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Vaccination
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Vaccine Efficacy
7. Acute meningitis and encephalitis syndrome surveillance disease burden in four China prefectures
Dan WU ; Yixing LI ; Zhujun SHAO ; Huanyu WANG ; Guijun NING ; Junhong LI ; Zundong YIN
Chinese Journal of Preventive Medicine 2019;53(2):164-168
Objectives:
To explore acute meningitis and encephalitis syndrome (AMES) surveillance in 4 China prefectures, to understand the epidemiological features and disease burden of
8. Guidelines for the use of post-traumatic tetanus vaccines and passive immune preparation
Chuanlin WANG ; Si LIU ; Zhujun SHAO ; Zundong YIN ; Qingjun CHEN ; Xiao MA ; Chao MA ; Qing WANG ; Linghang WANG ; Jigui DENG ; Yixing LI ; Zhixian ZHAO ; Dan WU ; Jiang WU ; Li ZHANG ; Kaihu YAO ; Yuan GAO ; Xu XIE
Chinese Journal of Preventive Medicine 2019;53(12):1212-1217
Post-traumatic tetanus is the main type of non-neonatal tetanus. To reduce the incidence and mortality rate of tetanus and guide the primary medical institutions to prevent and control tetanus after trauma, National Immunization Planning Technical Working Group of the Chinese Center for Disease Control and Prevention has compiled this document in the reference with Position Paper by World Health Organization, the latest research progress from home and abroad. The guidelines focus on the basic procedures for the prevention and disposition of post-traumatic tetanus, the application of tetanus vaccines and immune preparation, and the pre-exposure immunization in high-risk populations of trauma.
9. Early containment strategies and core measures for prevention and control of novel coronavirus pneumonia in China
Wei CHEN ; Qing WANG ; Yuanqiu LI ; Hailiang YU ; Yinyin XIA ; Muli ZHANG ; Ying QIN ; Ting ZHANG ; Zhibin PENG ; Ruochen ZHANG ; Xiaokun YANG ; Wenwu YIN ; Zhijie AN ; Dan WU ; Zundong YIN ; Shu LI ; Qiulan CHEN ; Luzhao FENG ; Zhongjie LI ; Zijian FENG
Chinese Journal of Preventive Medicine 2020;54(3):1-6
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.