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Emergence of Zika Virus in Culex tritaeniorhynchus and Anopheles sinensis Mosquitoes in China

Virologica Sinica 2021年第1期36卷 33-42页

作者： Jing Wang Hongbin Xu Song Song Rui Cheng Na Fan Shihong Fu Shaozai Zhang Ziqian Xu Ying He Wenwen Lei Fan Li Huanyu Wang Xiaoqing Lu Guodong Liang qingdao University Qingdao 266071China State Key Laboratory of Infectious disease prevention and control National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Jiangxi Province center for disease control and prevention Nanchang 330029China qingdao municipal center for disease control and prevention Qingdao 266071China Luoyang City center for disease control and prevention Luoyang 471000China

Zika virus(ZIKV)has been isolated from mosquitoes such as Aedes,Mansonia uniformis,and Culex perfuscus;However,the isolation of ZIKV from Anopheles sinensis and Culex tritaeniorhynchus has not yet been *** June and July2018,22,985 mosquitoes and 57,500 midges were collected in Jiangxi Province in southeastern *** them,six strains of ZIKV were isolated from mosquitoes:four from *** and two from *** genetic analysis showed that the ZIKV isolated from *** and *** belonged to genotype 2 in the Asian evolutionary branch of *** addition,the ZIKV strains isolated from *** and *** had amino acid substitutions identical to ZIKV strains prevalent in South America since *** study is the first to isolate ZIKV from mosquito specimens collected in the wild of Jiangxi Province,China;This is also the first time that ZIKV has been isolated from *** and *** that *** and *** have a very wide geographical distribution in China and even in eastern and southern Asia,the isolation of several strains of ZIKV from these two mosquitoes poses new challenges for the prevention and control of ZIKV infection in the mainland of China and countries and regions with the same distribution of mosquitoes.

关键词： Anopheles sinensis Culex tritaeniorhynchus Zika virus(ZIKV)

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Prevalence of Thyroid Nodules and Its Relationship with Iodine Status in Shanghai:a Population-based Study

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Biomedical and Environmental Sciences 2016年第6期29卷 398-407页

作者： SONG Jun ZOU Shu Rong GUO Chang Yi ZANG Jia Jie ZHU Zhen Ni MI Ming HUANG Cui Hua YU Hui Ting LU Xi RUAN Ye WU Fan Department of Nutrition Hygiene Shanghai Municipal Center for Disease Control and Prevention Department of Food Hygiene & Food-Borne disease control Shanghai Municipal Center for Disease Control and Prevention Department of Health Statistics Shanghai Municipal Center for Disease Control and Prevention Department of School Health Shanghai Municipal Center for Disease Control and Prevention Department of Diabetes Mellitus control and prevention Shanghai Municipal Center for Disease Control and Prevention

Objective This study was designed to evaluate the prevalence of thyroid nodules（TNs） and its relationship with urine iodine concentrations（UICs） after the regional rapid economic growth and lifestyle changes. Methods A cross-sectional survey was conducted in the general population aged 15-69 years. A questionnaire regarding general and personal characteristics and relevant information was administered. Ultrasonography of the thyroid was performed, and serum triiodothyronine（T3）, tetraiodothyronine（T4）, serum thyroid stimulating hormone（TSH）, free triiodothyronine（FT3）, free tetraiodothyronine（FT4）, thyroglobulin antibody（Tg Ab）, thyroid peroxidase antibody（TPOAb）, and TSH receptor antibody（TRAb） levels were measured for each individual subject. Results The prevalence rates of TNs in the whole population, females and males were 27.76%, 34.04%, and 21.60%, respectively. The prevalence of multiple nodules increased with age, whereas the prevalence peaks differed between males and females. The median UICs in the whole population and females with non-TNs were higher than those of subjects with TNs（P=0.0035, P=0.0068）. The median UICs in subjects with a single TN were higher than those in subjects with multiple TNs（P=0.0164, P=0.0127）. The result showed a U-shaped curve relationship between UIC and prevalence of TNs. The prevalence of TNs was the lowest when the UIC was 140-400 μg/L. Conclusion The prevalence of TNs was nearly 30% and increased with age. The relationship between UIC and prevalence of TNs is U-shaped, with an increase in risk when the UIC was 〈140 μg/L and 〉400 μg/L. Very low or high UIC levels need attention and correction.

关键词： Thyroid Nodules Prevalence Urine iodine Epidemiology

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Neutralizing Antibody Titer Test of Ebola Recombinant Protein Vaccine and Gene Vector Vaccine pVR-GP-FC

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Biomedical and Environmental Sciences 2018年第10期31卷 721-728页

作者： YANG Ren ZHU Ying MA Jing HAO Yan Zhe WANG Xuan HOU Mei Ling LIU Li Peng FAN Li Yun CAO Yu Xi ZHANG Xiao Guang LI Xiao Jing National Institute for Viral disease control and prevention Chinese Center for Disease Control and PreventionBeijing 102206 China qingdao municipal center Jor disease control and prevention Qingdao 266033Shandong China qingdao Institute of Preventive Medicine Qingdao 266033 Shandong China

Objective In previous studies, we immunized mice with Ebola recombinant protein vaccine and gene vector vaccine. Both stimulated high levels of humoral immunity. In this work, we constructed a pseudovirus containing Ebola membrane proteins to verify whether the two immunization strategies can induce neutralizing antibodies in mice. Methods A pseudovirus containing an Ebola virus membrane protein based on the HIV-1 viral gene sequence was constructed and evaluated using a known neutralizing antibody. The titer of the neutralizing antibody in the sera of mice immunized with the recombinant protein and the gene vector vaccine was examined using a neutralization test. Results Ebola pseudovirus was successfully prepared and applied for neutralizing antibody detection. Immunological experiments showed that recombinant protein GP-Fc and gene vaccine pVR-modGP-Fc had good immunogenicity. The titer of the bound antibody in the serum after 8 weeks of immunization in mice was more than 1：105, and the recombinant protein induced greater humoral immunity. The results of the neutralization test based on the Ebola pseudovirus system demonstrated that both vaccines induced production of protective antibodies, while the gene vaccine induced a higher titer of neutralizing antibodies. Conclusion An Ebola pseudovirus detection system was successfully established and used to evaluate two Ebola vaccines. Both produced good immunogenicity. The findings lay the foundation for the development of new Ebola vaccines and screening for neutralizing monoclonal antibodies.

关键词： Ebola virus Recombinant subunit vaccine DNA vaccine Neutralizing antibody

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Pollution of HCHs,DDTs and PCBs in tidal flat of Hangzhou Bay 2009–2013

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Chinese Journal of Oceanology and Limnology 2016年第3期34卷 539-548页

作者：赵鹏龚文杰毛国华李继革徐奋奋施家威 Jiangbei center for disease control and prevention Ningbo Cixi center for disease control and prevention Ningbo Ningbo municipal center for disease control and prevention Ningbo

The concentration and distribution of three persistent organic pollutants （hexachlorocyclohexanes （HCHs）, dichlorodiphenyltrichloroethanes （DDTs） and polyehlorinated biphenyls （PCBs）） was assessed in tidal fiat sediments collected from the south bank of Hangzhou Bay, China from 2009 to 2013. Gas chromatography coupled to triple quadrupole mass spectrometry （GC-MS/MS） was used for analysis, based on United States Environmental Protection Agency methods EPAS080A, EPA8081B, and EPA3550B. The results showed that the levels of HCHs, DDTs and PCBs decreased in the order of DDTs 〉 HCHs 〉 PCBs, and their mass fractions ranged from 0.29-32.91, 0.09-13.19 and 0.16-4.10 ktg/kg （dry mass）, respectively. The levels of HCHs, DDTs and PCBs decreased slowly from 2009 to 2013, with considerably greater concentrations in winter than in spring and summer. In this study area, the concentrations of DDTs and HCHs decreased gradually towards the mouth of Hangzhou Bay, while the concentrations of PCBs were related to changes in the local economy. In addition, the sources of HCHs and DDTs were identified as atmospheric precipitation and historical residues, Finally, we predicted that PCBs pollution primarily originated from Aroclor 1254（Lot A4）, which might root in the illegal demolition and stacking of abandoned paint, transformer or electronic equipment in the south bank of Hangzhou Bay.

关键词： South Bank of Hangzhou Bay sediment hexachlorocyclohexanes (HCHs) dichlorodiphenyltrichloroethanes (DDTs) polychlorinated biphenyls (PCBs)

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Molecular Characteristics of Neisseria meningitidis Isolated during an Outbreak in a Jail: Association with the Spread and Distribution of ST-4821 Complex Serogroup C Clone in China

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Biomedical and Environmental Sciences 2013年第5期26卷 331-337页

作者： ZHANG Ji ZHOU Hai Jian XU Li HU Guang Chun ZHANG Xue Hua XU Sheng Ping LIU Zun Yu SHAO Zhu Jun Jinan municipal center for disease control and prevention State Key Laboratory for Infectious disease prevention and control National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and Prevention

Objective To characterize the meningococcal strains isolated from cases and close contacts with meningococcal disease associated with an outbreak in a jail in May 2010 by investigating the national distribution of hyperinvasive ST-4821 serogroup C clone associated with this outbreak. Methods The cases were described based on the clinical symptoms and laboratory results. Pharyngeal swabs were cultured for N. meningitidis from men in the jail. Meningococcal isolates were identified by serogrouping, pulsed-field gel electrophoresis （PFGE） and multilocus sequence typing （MLST）, respectively. Four hundred and sixteen serogroup C N. meningitidis strains were collected from 27 provinces between 2003 and 2010 for a nationwide survey and analyzed by PFGE and MLST. Results Three persons in a jail system were infected with invasive N. meningitidis serogroup C. All isolates tested had matching PFGE patterns and belonged to the multilocus sequence type （ST） 4821 clonal complex. All 47 N. meningitidis strains were identified from the pharyngeal swabs of 166 peoples in the jail, and 26 of them belonged to ST-4821 serogroup C clone, and 90.14% （375/416） serogroup C strains identified in the nationwide survey belonged to the ST-4821 complex. The ST-4821 serogroup C clone was spread nationwide, distributed in 24 provinces, especially in eastern provinces between 2003 and 2010. Conclusion Endemic transmission and carriage rate of ST-4821 serogroup C clone are high in this jail system. The ST-4821 serogroup C clone is spreading in China and nationwide distributed despite the existence of some effective vaccines.

关键词： Pulsed-field gel electrophoresis Multilocus sequence typing Neisseria meningitidis ST-4821 Serogroup C

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A Hospital Superspreading Event of COVID-19--qingdao City,Shandong Province,China,2020

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China CDC weekly 2020年第34期2卷 655-657页

作者： Hualei Xin Jiwei Liang Fachun Jiang qingdao municipal center for disease control and prevention QingdaoShandongChina

Superspreaders were defined as the minority of individuals who infect disproportionately more susceptible contacts,especially when compared to the majority of individuals who infect few or no *** events,*** involving superspreaders,highlight the limitations of basic reproduction number(R0),which represented the average dynamics of transmission.

关键词： Super limitations qingdao

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Epidemic Characteristics and Spatio-Temporal Patterns of HFRS in qingdao City,China,2010-2022

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Biomedical and Environmental Sciences 2024年第9期37卷 1015-1029页

作者： Ying Li Runze Lu Liyan Dong Litao Sun Zongyi Zhang Yating Zhao Qing Duan Lijie Zhang Fachun Jiang Jing Jia Huilai Ma Chinese Field Epidemiology Training Program Chinese Center for Disease Control and PreventionBeijing 100050China National Institute for Viral disease control and prevention Chinese Center for Disease Control and PreventionBeijing 102206China qingdao municipal center for disease control and prevention Qingdao 266024ShandongChina Jiaozhou center for disease control and prevention Qingdao 266399ShandongChina Institute for Infectious disease control and prevention Shandong Center for Disease Control and PreventionJinan 250013ShandongChina Office of Epidemiology(Technical Guidance Office for Patriotic Health Work) Chinese Center for Disease Control and PreventionBeijing 102206China

Objective This study investigated the epidemic characteristics and spatio-temporal dynamics of hemorrhagic fever with renal syndrome(HFRS)in qingdao City,*** Information was collected on HFRS cases in qingdao City from 2010 to *** epidemiologic,seasonal decomposition,spatial autocorrelation,and spatio-temporal cluster analyses were *** A total of 2,220 patients with HFRS were reported over the study period,with an average annual incidence of 1.89/100,000 and a case fatality rate of 2.52%.The male:female ratio was 2.8:1.75.3%of patients were aged between 16 and 60 years old,75.3%of patients were farmers,and 11.6%had both“three red”and“three pain”*** HFRS epidemic showed two-peak seasonality:the primary fall-winter peak and the minor spring *** HFRS epidemic presented highly spatially heterogeneous,street/township-level hot spots that were mostly distributed in Huangdao,Pingdu,and *** spatio-temporal cluster analysis revealed three cluster areas in qingdao City that were located in the south of Huangdao District during the fall-winter *** The distribution of HFRS in qingdao exhibited periodic,seasonal,and regional characteristics,with high spatial clustering *** typical symptoms of“three red”and“three pain”in patients with HFRS were not obvious.

关键词： Hemorrhagic fever with renal syndrome Epidemic characteristics Spatio-temporal distribution

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Molecular Epidemiological Characteristics of Streptococcus pyogenes Strains Involved in an Outbreak of Scarlet Fever in China,2011

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Biomedical and Environmental Sciences 2013年第11期26卷 877-885页

作者： YOU Yuan Hai SONG Yan Yan YAN Xiao Mei WANG Hai Bin ZHANG Meng Han TAO Xiao Xia Li Lei Lei ZHANG Yu Xin JIANG Xi Hong ZHANG Bing Hua ZHOU Hao XIAO Di JIN Lian Mei FENG Zi Jian LUO Feng Ji ZHANG Jian Zhong Collabroative Innovation center for Diagnosis Treatment of Infectious disease State Key Laboratory for Infectious Disease Prevention and ControlNational Institute for Communicable Disease Control and Prevention Chaoyang District center for disease control and prevention Beijing Suzhou City center for disease control and prevention Office of disease control and Emergency Response Chinese Center for Disease Control and Prevention Harbin municipal center for disease control and prevention

Objective To investigate molecular characterization of streptococcus pyogenes isolates involved in an outbreak of scarlet fever in China in 2011. Methods Seventy-four 5treptococcol pyogenes involved in an outbreak of scarlet fever were isolated from pediatric patients in the areas with high incidence in China from May to August of 2011. Emm genotyping, pulsed-field gel electrophoresis （PFGE）, superantigen （SAg） genes and antimicrobial susceptibility profiling were analyzed for these isolates. Results A total of 4 different emm types were identified. Emm12 was the most prevalent type which contained four predominating PFGE patterns corresponding to four different virulence and superantigen profiles. Emm12（79.7%） and emml （14.9%） accounted for approximately 94% of all the isolates. The speA gene was all negative in emm12 isolates and positive in emml isolates. All strains were resistant to erythromycin, and 89.4% of them were resistant to erythromycin, tracycline, and clindamycin simultaneously. Conclusion Several highly diversified clones with a high macrolide resistance rate comprise a predominant proportion of circulating strains, though no new emm type was found in this outbreak. The data provide a baseline for further surveillance of scarlet fever, which may contribute to the explanation of the outbreak and development of a GAS vaccine in China.

关键词： Scarlet fever Streptococcus pyogenes Molecular epidemiology

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A Case of Psittacosis-qingdao City,Shandong Province,China,May 2023

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China CDC weekly 2023年第28期5卷 637-638页

作者： Ying Li Bei Pan Wenzhe Xiao Lizhu Fang Lijie Zhang Fachun Jiang Jing Jia Huilai Ma Chinese Field Epidemiology Training Program Chinese Center for Disease Control and PreventionBeijingChina National Institute for Viral disease control and prevention Chinese Center for Disease Control and PreventionBeijingChina qingdao municipal center for disease control and prevention Qingdao CityShandong ProvinceChina Jiaozhou center for disease control and prevention Qingdao CityShandong ProvinceChina

A case of psittacosis was identified in qingdao City,Shandong Province on May 4,*** patient,a 69-year-old retired male,was admitted to a medical facility on April 22,*** symptoms,which had persisted for two days prior to his admission,included a fever(reaching 38.4°C at its peak),an escalating cough,and wheezing,none of which had been previously treated.

关键词： admitted qingdao Shandong

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Pedestrian Injuries and the Relevant Burden in Shanghai, China: Implications for control

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Biomedical and Environmental Sciences 2015年第2期28卷 127-135页

作者： LI Yan Hong WANG Chun Fang SONG Gui Xiang PENG Juan Juan ZHOU De Ding SU Hui Jia GAO Ning YU Yan ZHONG Wei Jian ZHANG Hong Wei Department of Injury prevention and control Shanghai Municipal Center for Disease Control & Prevention Department of Vital Statistics Shanghai Municipal Center for Disease Control &Prevention Department of Epidemiology Second Military Medical University

Objective To study the associations of pedestrian injuries with age, income and educational level in Shanghai and to analyze the relative disease burden. Methods Information on pedestrian-related cases and deaths were collected from 494 hospitals and mortality registry systems from 1992 to 2010, and a multistage cluster sampling survey conducted in 2006. Logistic regression model was used in the analyses. Results The age group of 5-9 had the highest mortality and morbidity among children. Mortality increased obviously among those aged 60 or above. Individuals with an educational level under the primary school and with the lower family average income were more likely to suffer pedestrian-related injuries. Multivariate Logistic analysis demonstrated that lower income and lower educational level increased the risk of pedestrian injuries with the odds ratio of 1.40 （95% Cl： 1.15-1.71） and 1.70 （95% Cl： 1.20-2-40）, respectively. About 13.54% of the share of GDP for the healthcare, social security and welfare industries in Shanghai was occupied by the burden of pedestrian-related injuries in 2006. Conclusion Pedestrian-related injury has inverse association with victims＇ income and educational level. Children of 5-9 years old and adults over 60 with lower educational level and lower monthly income are the target persons to be intervened.

关键词： Pedestrian Injury Mortality Education Costs

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