中华传染病杂志最新文献

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Clinical characteristics of 28 patients with novel coronavirus pneumonia 新型冠状病毒肺炎28例临床特征分析
Chinese Journal of Infectious Diseases Pub Date : 2020-02-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2020.02.007
R. Zhao, Yunguang Liang, Yanrong Lin, N. Lu, Qiu-qiong Li, Youling Li, P. Pan, Wei He
{"title":"Clinical characteristics of 28 patients with novel coronavirus pneumonia","authors":"R. Zhao, Yunguang Liang, Yanrong Lin, N. Lu, Qiu-qiong Li, Youling Li, P. Pan, Wei He","doi":"10.3760/CMA.J.ISSN.1000-6680.2020.02.007","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2020.02.007","url":null,"abstract":"Objective \u0000To analysis the clinical characteristics and experiences in diagnosis and treatment of the patients with novel coronavirus pneumonia (NCP). \u0000 \u0000 \u0000Methods \u0000Clinical data of 28 patients with NCP in Nanning Fourth People's Hospital from January 22 to February 5 in 2020 were collected. The clinical manifestations, epidemiological history, laboratory tests, imaging examinations and treatments of patients were analyzed retrospectively. \u0000 \u0000 \u0000Results \u0000The 28 patients with confirmed viral pneumonia included 11 males and 17 females, ranging from 11 to 68 years. They all had history of epidemiological exposure and were all positive for 2019-nCoV nucleic acid in throat swabs. There were one mild case, 25 ordinary cases and two severe cases. There were four groups of family clusters. The illness onset ranged from 1 to 12 days after exposure, and the time from the symptom onset to the positive result of the nucleic acid test was 0 to 13 days. The clinical symptoms were mainly fever and cough, which progressed rapidly in a short period of time. Since the onset of illness, the peak values of axillary temperature of the 28 patients were 36.6~39.5 ℃, while five patients had no fever throughout the course of the disease with the peak temperature of ≤37 ℃. There were two patients presented with decreased white blood cell counts, five patients with elevated C reactive protein, six patients with abnormal alanine aminotransferase, three patients with abnormal aspartate aminotransferase,10 patients with elevated creatine kinase, three patients with elevated creatine kinase isoenzyme, four patients with elevated lactate dehydrogenase, and all with normal procalcitonin levels. The chest computed tomography examinations showed that the common features were ground glass shadows (21 cases), blurred edges (18 cases), speckles and patchy shadows (17 cases), thickening and disorder of some lung textures (7 cases), and visible band shadows (7 cases). Pulmonary lesions often progressed rapidly. One 11-year-old child was treated with alpha-interferon alone, and 27 patients were treated with alpha-interferon inhalation plus lopinavir/ritonavir with 4 withdrawal due to adverse reactions. Up to February 12, nine patients had been discharged from the hospital, who were ordinary cases, without death cases. \u0000 \u0000 \u0000Conclusions \u0000The NCP patients mostly present with fever and cough. Pulmonary lesions often progress rapidly. Respiratory pathogen testing should be conducted as early as possible and repeatedly. Disisolation should be cautious for suspected people who are negative for 2019-nCoV nucleic acid in pharynx swabs. \u0000 \u0000 \u0000Key words: \u00002019-nCoV; Pneumonia; Clinical characteristic","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43884555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
2019 novel coronavirus infection:pediatric professionals′ perspectives and action 2019新型冠状病毒感染:儿科专业人士的观点与行动
Chinese Journal of Infectious Diseases Pub Date : 2020-02-07 DOI: 10.3760/CMA.J.ISSN.1000-6680.2020.02.002
M. Zeng, Xiao-Ying Zhai
{"title":"2019 novel coronavirus infection:pediatric professionals′ perspectives and action","authors":"M. Zeng, Xiao-Ying Zhai","doi":"10.3760/CMA.J.ISSN.1000-6680.2020.02.002","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2020.02.002","url":null,"abstract":"2019新型冠状病毒(2019 novel coronavirus,2019-nCoV)肺炎在我国的暴发流行引起了全球高度关注。目前报道的儿童2019-nCoV感染病例非常有限,初步来看,儿童对2019-nCoV的易感性较低,而且病情严重程度也低。但是儿童是呼吸道病毒感染的易感人群,儿科医务工作者需要重视儿童2019-nCoV感染的早期识别和预警,科学防控,最大程度地降低2019-nCoV感染对儿科人群的危害。","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41328577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Maternal breast feeding safety of hepatitis B virus carrying parturient women with hepatitis B surface antigen and hepatitis B e antigen double positive 乙型肝炎表面抗原和乙型肝炎e抗原双阳性产妇的母乳喂养安全性
Chinese Journal of Infectious Diseases Pub Date : 2020-01-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2020.01.006
Hong Wang, Hongping Wang, Linyan Qian, Lingyan Xu
{"title":"Maternal breast feeding safety of hepatitis B virus carrying parturient women with hepatitis B surface antigen and hepatitis B e antigen double positive","authors":"Hong Wang, Hongping Wang, Linyan Qian, Lingyan Xu","doi":"10.3760/CMA.J.ISSN.1000-6680.2020.01.006","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2020.01.006","url":null,"abstract":"Objective \u0000To explore hepatitis B virus (HBV) infection rate of breast feeding to newborn babies of HBV carrying parturient women with hepatitis B surface antigen (HBsAg) and hepatitis B e antigen (HBeAg) double positive. \u0000 \u0000 \u0000Methods \u0000A prospective cohort study was conducted to include HBsAg and HBeAg double-positive HBV carrying parturient women and their babies born from February 2016 to May 2018 at the Women′s Hospital, Zhejiang University School of Medicine, and 323 parturient women and 323 babies were enrolled. The babies were divided into breast feeding group and artificial feeding group. Chemiluminescence immunoassay and polymerase chain reaction-fluorescent probe method were used to detect the positive rates of serum HBV markers and HBV DNA levels in the newborns <24 h and seven-month-old age, respectively. The statistical method was performed using χ2 test. \u0000 \u0000 \u0000Results \u0000A total of 297 parturient women were finally included for the analysis, including 149 in the breast feeding group and 148 in the artificial feeding group. There were no significant differences in the positive rates of HBsAg, hepatitis B surface antibody (anti-HBs), HBeAg and HBV DNA>100 IU/mL between the two groups at birth 0.05). The positive rate of anti-HBs in newborns in the breast feeding group at birth 100 IU/mL in newborns in the breast feeding group were 2.01%(3/149) and 2.68%(4/149) at birth 0.05). In the artificial feeding group, the positive rate of anti-HBs in newborns was 47.97%(71/148) at birth 100 IU/mL in newborns in the artificial feeding group at birth 0.05). \u0000 \u0000 \u0000Conclusions \u0000Breast feeding is not a decisive factor for the risk of vertical transmission in HBsAg and HBeAg double-positive HBV carriers. It is recommended that such women could breastfeed under formal precautions. \u0000 \u0000 \u0000Key words: \u0000Hepatitis B; Breast feeding; Mother-to-child transmission","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49454105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Improving the understanding of diagnosis and treatment of novel coronavirus infection 提高对新型冠状病毒感染诊断和治疗的认识
Chinese Journal of Infectious Diseases Pub Date : 2020-01-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2020.01.003
Yinzhong Shen
{"title":"Improving the understanding of diagnosis and treatment of novel coronavirus infection","authors":"Yinzhong Shen","doi":"10.3760/CMA.J.ISSN.1000-6680.2020.01.003","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2020.01.003","url":null,"abstract":"The novel coronavirus (nCoV) is a coronavirus that has not been found in human before. It often uses animals other than human as its host and intermediate host. The nCoV reported at present includes severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV) and recently discovered 2019 new coronavirus (2019-nCoV). nCoV is a new type of coronavirus. ncov can cause severe acute respiratory infection (SARI), acute respiratory distress syndrome, septic shock, renal failure and other critical disease states. It is urgent to improve the clinicians' understanding of the diagnosis and treatment of nCoV infection. To improve the ability of outpatient triage and early identification, to strengthen the prevention and control of nosocomial infection, to improve the comprehensive treatment ability of severe patients and to strengthen clinical research are the key to deal with the epidemic situation of nCoV infection. \u0000 \u0000 \u0000Key words: \u0000SARS-CoV-2 infection; Severe acute respiratory infection; Pneumonia of unknown origin","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47021168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of a novel coronavirus and the landscape of prevention and control of emerging infectious diseases 新型冠状病毒鉴定与新发传染病防控形势
Chinese Journal of Infectious Diseases Pub Date : 2020-01-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2020.01.002
Wenhong Zhang
{"title":"Identification of a novel coronavirus and the landscape of prevention and control of emerging infectious diseases","authors":"Wenhong Zhang","doi":"10.3760/CMA.J.ISSN.1000-6680.2020.01.002","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2020.01.002","url":null,"abstract":"Since December 2019, there has been widespread concern over an unexplained pneumonia epidemic in Wuhan. Less than a month later, the expert team has identified the etiology, a novel coronavirus, which has won a \"golden window\" for effectively preventing the spread of the emerging infectious diseases. The prompt response of Chinese researchers to emerging infectious diseases has been recognized and appreciated by the World Health Organization, and reflects that the substantially improved ability to identify emerging infectious diseases. However, the strength of the current infectious disease discipline in China has yet to be further strengthened to meet the needs of China's public health development and the challenges of infectious diseases. Faced with urban aging and the spread of drug-resistant bacterial infections, as well as the increase in imported diseases and the uncontrollable risks of unknown infectious diseases, the future demand for infectious disease prevention and control systems in China is diverse, open, and flexible, including but It is not limited to the prevention and control of communicable diseases, diagnosis and treatment of bacterial and fungi infections, nosocomial infection control, and the use of antibiotic-resistant antibacterial drugs. Infectious disease professionals take on important tasks and responsibilities to protect the \"Healthy China\" strategy. \u0000 \u0000 \u0000Key words: \u0000SARS-CoV-2 infection; New infectious diseases; Identification of virus","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46799118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Characteristics and abnormal rate of electrocardiogram in patients with human immunodeficiency virus/acquired immunodeficiency syndrome 人类免疫缺陷病毒/获得性免疫缺陷综合征患者的心电图特征及异常率
Chinese Journal of Infectious Diseases Pub Date : 2019-12-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2019.12.006
Xiaoqing He, Yinzhong Shen, Fengru Lu, Fang Shen, Xinian Liu, Shuwen Wang
{"title":"Characteristics and abnormal rate of electrocardiogram in patients with human immunodeficiency virus/acquired immunodeficiency syndrome","authors":"Xiaoqing He, Yinzhong Shen, Fengru Lu, Fang Shen, Xinian Liu, Shuwen Wang","doi":"10.3760/CMA.J.ISSN.1000-6680.2019.12.006","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2019.12.006","url":null,"abstract":"Objective \u0000To analyze the characteristics and abnormalities of electrocardiograms (ECG) in patients with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS), and to provide evidences for the prevention and treatment of cardiovascular diseases in HIV/AIDS patients. \u0000 \u0000 \u0000Methods \u0000The ECG results of 1 131 HIV/AIDS patients and 5 622 non-HIV/AIDS subjects from Shanghai Public Health Clinical Center were involved. The abnormality rates and characteristics of ECG were compared between the two groups. CD4+ T lymphocyte counts, CD8+ T lymphocyte counts and CD4/CD8 ratios were measured in HIV/AIDS patients. The comparison between two groups was conducted by chi-square test. Logistic regression model was used to explore the factors associated with ECG abnormalities in HIV/AIDS patients. \u0000 \u0000 \u0000Results \u0000There were 611 cases (54.02%) out of 1 131 HIV/AIDS patients with abnormal ECG. The common abnormal ECG types were sinus tachycardia 239 cases (39.12%), sinus rhythm with ST-T changes 115 cases (18.82%) and sinus bradycardia 55 cases (9.00%). There were 1 958 cases (34.83%) out of 5 622 cases of non-HIV/AIDS subjects with abnormal ECG. The common ECG abnormality types were sinus bradycardia 633 cases (32.33%), sinus rhythm with ST-T changes 463 cases (23.65%) and sinus arrhythmia 256 cases (13.07%). The abnormal rate of ECG in HIV/AIDS patients was significantly higher than that in non-HIV/AIDS subjects (χ2=140.39, P<0.01). The abnormal rates of ECG in HIV/AIDS patients <50 years old and ≥50 years old were both higher than those of non-HIV/AIDS subjects in the corresponding age group, and the differences were statistically significant (χ2=111.92 and 52.12, respectively, both P<0.01). Logistic regression analysis showed an increased risk of abnormal ECG in HIV-infected individuals compared with non-HIV/AIDS individuals (odds ratio (OR)=2.27, 95% confidence interval (CI) 2.00-2.60, P<0.01). The risk of ECG abnormality increased in patients aged ≥50 years(OR=1.60, 95%CI 1.45-1.77, P<0.01). The ECG abnormal distribution patterns were significantly different between different levels of CD4+ T lymphocyte counts, CD8+ T lymphocyte counts and CD4/CD8 ratios in HIV/AIDS patients (χ2= 12.92, 10.99 and 16.48, respectively, all P<0.05 ). The risk of ECG abnormality increased in HIV/AIDS patients aged ≥50 years (OR=1.50, 95%CI 1.15-1.96, P<0.01). When CD8+ T lymphocyte counts ≥500/μL, the risk of ECG abnormalities reduced (OR=0.75, 95%CI 0.58-0.96, P<0.01). \u0000 \u0000 \u0000Conclusions \u0000The abnormal rate of ECG in patients with HIV/AIDS is high. The sinus tachycardia and sinus rhythm with ST-T segment changes are common. The risk of ECG abnormality increases in HIV/AIDS patients aged ≥50 years old and reduces when the CD8+ T lymphocyte counts ≥500/μL. Type distribution of ECG abnormalities is associated with cellular immune status of patients. \u0000 \u0000 \u0000Key words: \u0000Electrocardiography; Human immunodeficiency virus; Acquired immunodeficiency syndrome; Influencing fact","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48022829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of prognostic risk factors and establishment of prognosis model in patients with hepatitis B virus-related acute-on-chronic liver failure 乙型肝炎病毒相关性急慢性肝功能衰竭患者预后危险因素分析及预后模型的建立
Chinese Journal of Infectious Diseases Pub Date : 2019-12-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2019.12.004
Ziyue Li, Shitian Yang, Lingling Wu, Liying Tian, Na Li, Luyuan Ma, Chuan Shen, Ya-dong Wang, Xiao-Jing Wang, Caiyan Zhao
{"title":"Analysis of prognostic risk factors and establishment of prognosis model in patients with hepatitis B virus-related acute-on-chronic liver failure","authors":"Ziyue Li, Shitian Yang, Lingling Wu, Liying Tian, Na Li, Luyuan Ma, Chuan Shen, Ya-dong Wang, Xiao-Jing Wang, Caiyan Zhao","doi":"10.3760/CMA.J.ISSN.1000-6680.2019.12.004","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2019.12.004","url":null,"abstract":"Objective \u0000To explore the risk factors for prognosis in patients with hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF), and to establish a prognostic model. \u0000 \u0000 \u0000Methods \u0000A total of 193 patients diagnosed with HBV-ACLF who were admitted to the Department of Infectious Diseases of the Third Hospital of Hebei Medical University were collected from 1st January 2013 to 1st November 2018 as a derivation cohort. Thirty-five patients diagnosed with HBV-ACLF who were admitted to the Fifth Hospital of Shijiazhuang during the period from 1st July 2017 to 1st November 2018 were collected as a validation cohort. The survival condition of all patients at week 12 of admission was observed. The risk factors associated with short-term prognosis were analyzed by using multivariate logistic regression analysis, and a logistic regression equation prediction model was established and verified. The diagnostic performance of the prognostic model was evaluated using the receiver operating characteristic (ROC) curve, and was compared with model for end-stage liver disease (MELD) scoring system, Child-Turcotte-Pugh (CTP) scoring system, sequential organ failure assessment (SOFA) scoring system and chronic liver failure (CLIF)-SOFA scoring system. \u0000 \u0000 \u0000Results \u0000Multivariate logistic regression analysis showed that age (odds ratio(OR)=2.133, 95% confidence interval(CI)1.033-4.405), total bilirubin (OR=3.371, 95%CI 1.610-7.060), serum creatinine (OR=4.448, 95%CI 1.697-11.661), hepatic encephalopathy (OR=5.313, 95%CI 2.463-11.461), and ascites (OR=2.959, 95%CI 1.410-6.210) were independent risk factors for predicting the short-term prognosis of patients with HBV-ACLF. The newly established logistic regression model (LRM)=-1.726+ 0.757×age+ 1.215×total bilirubin+ 1.049 2×serum creatinine+ 1.670×hepatic encephalopathy (with=1, without=0) + 1.085×ascites (with=1, without=0). The area under the ROC curve of the LRM for predicting the short-term prognosis of patients with HBV-ACLF was 0.82 (95%CI 0.76-0.88). Furthermore, the areas under the ROC curve of the models of MELD, CTP, SOFA, CLIF-SOFA were 0.67 (95%CI 0.60-0.75), 0.73 (95%CI 0.66-0.80), 0.77 (95%CI 0.70-0.83) and 0.72 (95%CI 0.65-0.80), respectively. The ROC-area under curve of the validation cohort was 0.81 (95%CI 0.65-0.97). \u0000 \u0000 \u0000Conclusions \u0000Age, total bilirubin, serum creatinine, hepatic encephalopathy, and ascites are independent risk factors for the prognosis of HBV-ACLF. The prognostic model established based on these factors can accurately predict the patients′ short-term prognosis, which is superior to MELD, CTP, SOFA and CLIF-SOFA. \u0000 \u0000 \u0000Key words: \u0000Hepatitis B; Acute-on-chronic liver failure; Regression analysis; Prognostic model","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46730112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular epidemiology of norovirus GII.15 in Qingdao City 青岛市诺如病毒GII.15的分子流行病学研究
Chinese Journal of Infectious Diseases Pub Date : 2019-12-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2019.12.007
Dan Zhao, Weisen Yu, Xiaoyue Zhang, Z. Su, Ruiqin Sun, Zhaoguo Wang
{"title":"Molecular epidemiology of norovirus GII.15 in Qingdao City","authors":"Dan Zhao, Weisen Yu, Xiaoyue Zhang, Z. Su, Ruiqin Sun, Zhaoguo Wang","doi":"10.3760/CMA.J.ISSN.1000-6680.2019.12.007","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2019.12.007","url":null,"abstract":"Objective \u0000To analyze the molecular epidemiology of norovirus (NoV) genotype GⅡ.15 in Qingdao City. \u0000 \u0000 \u0000Methods \u0000One thousand four hundred and twelve stool samples were collected from suspected NoV infected patients and detected by real-time polymerase chain reaction (PCR). Open reading frame (ORF)1-ORF2 and VP1 gene were amplified by reverse transcription (RT)-PCR and sequenced for genotyping, evolutionary analysis and homology modeling. \u0000 \u0000 \u0000Results \u0000Seven cases of GⅡ.15 type were detected including four sporadic cases and one outbreak.The VP1 gene was highly homologous and had little variation compared with early strain J23/US/1999. The differences of amino acids between strains in Qingdao City were mainly asparagine/asparticacid(N/D)300 and proline/serine(P/S)302.Homology modeling suggested that VP1 of GⅡ.15 strain was composed of S domain and P domain (P1 subdomain included 224-276 and 431-555, P2 subdomain included 277-430). S domain contained eight anti-parallel β-sandwiches and two α-helixes, and P1 subdomain contained one α-helix and seven β-strands, and the P2 subdomain folded into a compact barrel-like structure consisting of six β-strands.Argnine (R)-glycine (G)-valine (V)-motif (289-291) and three specific loci including glutarnine (Q)313, asparagine (N)349 and Q389 were located in the P2 subdomain, with NGR-motif (265-267) located at 22nd upstream of RGV-motif.Site I (SNR-alanine(A)- histidine(H)357-361), Site Ⅱ (D388) and Site Ⅲ (G454, G455) were the main characteristic sites of histo-blood group antigens (HBGA) binding interface, which may be similar to the binding pattern of GⅡ.4 type VA387 and HBGA. \u0000 \u0000 \u0000Conclusion \u0000Although GⅡ.15 type NoV evolves very slowly, it may still have the risk to become an epidemic strain, which needs to be monitored and further studied. \u0000 \u0000 \u0000Key words: \u0000Norovirus GⅡ.15; Epidemiology, molecular","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47018496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real world study of daclatavir combined with sofosbuvir treatment in chronic hepatitis C daclatavir联合索非布韦治疗慢性丙型肝炎的现实世界研究
Chinese Journal of Infectious Diseases Pub Date : 2019-12-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2019.12.005
Chun Zhang, Luyuan Tong, Zhaowei Tong
{"title":"Real world study of daclatavir combined with sofosbuvir treatment in chronic hepatitis C","authors":"Chun Zhang, Luyuan Tong, Zhaowei Tong","doi":"10.3760/CMA.J.ISSN.1000-6680.2019.12.005","DOIUrl":"https://doi.org/10.3760/CMA.J.ISSN.1000-6680.2019.12.005","url":null,"abstract":"Objective \u0000To investigate the efficacy and safety of daclatavir combined with sofosbuvir treatment in chronic hepatitis C (CHC) in the real world. \u0000 \u0000 \u0000Methods \u0000A total of 56 CHC patients administrated with daclatavir (60 mg/d) combined with sofosbuvir (400 mg/d) in Huzhou Central Hospital from February to June in 2018 were enrolled. All patients were administrated with daclatavir combined with sofosbuvir for 12 weeks and followed up for 24 weeks. The virological response and the effect of antiviral therapy on hepatic fibrosis were analyzed. Non-structural protein 5A (NS5A) region mutation sequence was detected by Sanger method. Safety and the adverse events were observed. The t test, chi-square test and Mann-Whitney U test were used to analyze the data. \u0000 \u0000 \u0000Results \u0000Hepatitis C virus (HCV) RNA of all patients treated with daclatavir and sofosbuvir was undectable after eight-week treatment. Sustained virological response at 12 weeks post-treatment (SVR12) was 98.1% (52/53). Gender, globulin, insulin, triglyceride and hemoglobin were correlated with virus clearance (χ2= 4.47, t=2.51, U=1.98, U=2.32 and t=2.03, respectively, all P 0.05). During the treatment, patients developed dizziness, fatigue, nausea and vomiting, panic, insomnia, sleepiness and sexual function enhancement. \u0000 \u0000 \u0000Conclusion \u0000Daclatavir in combination with sophobuvir shows high virological response and good safety in the treatment of chronic hepatitis C, and liver fibrosis is improved after clearance of HCV. \u0000 \u0000 \u0000Key words: \u0000Hepatitis C, chronic; Daclatasvir; Sofosbuvir; Real world study","PeriodicalId":10127,"journal":{"name":"Chinese Journal of Infectious Diseases","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47375094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predictive markers for safe discontinuation of nucleos(t)ide analogues antiviral therapy in chronic hepatitis B patients 慢性乙型肝炎患者核苷类似物抗病毒治疗安全停药的预测标志物
Chinese Journal of Infectious Diseases Pub Date : 2019-12-15 DOI: 10.3760/CMA.J.ISSN.1000-6680.2019.12.002
X. Miao, B. Pei
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引用次数: 0
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