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q fever endocarditis with multi-organ complication： a case report

Chinese Medical Journal 2006年第18期119卷 1580-1582页

作者： ZHANG Li-juan FU Xiu-ping ZHANG Jing-shan Department of Rickettsia National Institute of Communicable Disease Control and Prevention Chinese Centre for Disease Control and Prevention Beijing 102206 China

qfever is a worldwide zoonosis and its agent is Coxiella burnetii （C. burnetii）. There are two forms of q fever： acute and chronic. Acute q fever is caused by primary infection with C. burnetii and its main clinical features are high fever, granulomatous hepatitis and atypical pneumonia. Acute q fever is extremely prone to develop chronic infection if it is improperly treated. Endocarditis is the main characteristic of chronic q fever and it accounts for 3% to 5% of all cases of endocarditis.

关键词： q fever Coxiella burnetii endocarditis

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Retrospective Examination of q fever Endocarditis： An Underdiagnosed Disease in the Mainland of China

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Chinese Medical Journal 2017年第1期130卷 64-70页

作者： Xiao Han Jeffrey Hsu qi Miao Bao-Tong Zhou Hong-Wei Fan Xiao-Lu Xiong Bo-Hai Wen Lian Wu Xiao-Wei Yan quan Fang Wei Chen Department of Hematology Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China Department of Cardiology Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China Department of Cardiac Surgery Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China Department of Infection Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730 China ing 100071 China Department of Internal Medicine Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730. China

Background： q fever endocarditis, a chronic illness caused by Coxiella burnetii, can be fatal ifmisdiagnosed or left untreated. Despite a relatively high positive rate of q fever serology in healthy individuals in the mainland of China, very few cases of q fever endocarditis have been reported. This study summarized cases of q fever endocarditis among blood culture negative endocarditis （BCNE） patients and discussed factors attributing to the low diagnostic rate. Methods： We identified confirmed cases of q fever endocarditis among 637 consecutive patients with infective endocarditis （IE） in the Peking Union Medical College Hospital between 2006 and 2016. The clinical findings for each confirmed case were recorded. BCNE patients were also examined and each BCNE patient＇s q fever risk factors were identified. The risk factors and presence of q fever serologic testing between BCNE patients suspected and unsuspected of q fever were compared using the Chi-squared or Chi-squared with Yates＇ correction for continuity. Results： Among the IE patients examined, there were 147 BCNE patients, of whom only 11 patients （7.5%） were suspected of q fever and undergone serological testing for C. burnetii. Six out of 11 suspected cases were diagnosed as q fever endocarditis. For the remaining 136 BCNE patients, none of them was suspected of q fever nor underwent relevant testing. Risk factors for q fever endocarditis were comparable between suspected and unsuspected patients, with the most common risk factors being valvulopathy in both groups. However, significantly more patients had consulted the Infectious Diseases Division and undergone comprehensive diagnostic tests in the suspected group than the unsuspected group （100% vs. 63%, P = 0.03）. Conclusions： q fever endocarditis is a serious yet treatable condition. Lacking awareness of the disease may prevent BCNE patients from being identified, despite having q fever risk factors. Increasing awareness and guideline adherence are cruc

关键词： Blood Culture Endocarditis q fever

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A case report of autochthonous q fever with pneumonia and hepatitis in northeastern China

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Biosafety and Health 2021年第3期3卷 179-182页

作者： Yuan Gao Lihe Che Zedong Wang Junqi Niu Wei Wei Mingxin Song quan Liu Department of Emerging Infectious Diseases The First Hospital of Jilin UniversityChangchun 130062China Department of Hepatology The First Hospital of Jilin UniversityChangchun 130062China Institute of Virology and AIDS Research First Hospital of Jilin UniversityChangchun 130062China College of Veterinary Medicine Northeast Agricultural UniversityHarbin 150030China School of Life Sciences and Engineering Foshan UniversityFoshan 528225China

There are only a few case reports of q fever caused by Coxiella burnetii in China,despite the nature as a ubiquitous zoonotic disease *** the northeast part of China,a 52-year-old male presented with fever,cough,shortness of breath,and sputum production,accompanied by headache,dizziness,chill,myalgia,and *** computed tomography images showed pneumonia accompanied by bilateral scattered infiltrates and localized upper-lobe *** abnormal liver function was indicated by the increased levels of alanine aminotransferase and aspartate *** high-throughput sequencing and molecular detection,Coxiella burnetii was positive in the patient's blood *** treatment with moxifloxacin hydrochloride and vidarabine monophosphate for 12 days,the patient completely *** our knowledge,this was the first reported case of q fever with pneumonia and hepatitis in this country.

关键词： q fever Coxiella burnetii Pneumonia Hepatitis China

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Coxiella burnetii:living inside the host cell

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BIOCELL 2019年第1期43卷 1-6页

作者： Jesus Sebastian DISTEL Walter BERON Rodolfo Matias ORTIZ FLORES Instituto de Histologia y Embriologia de Mendoza(IHEM) ONICETUniversidad Nacional de CuyoMendozaArgentina Facultad de Odontologia Universidad Nacional de CuyoMendozaArgentina

Coxiella burnetii is an obligate intracellular pathogen and the causative agent of q *** this brief review,we describe how recently described mechanisms help our understanding of *** invasion and its survival in the host cell by the formation of a replicative niche:the Coxiella-containing *** describe the actin-associated proteins involved in the internalization of ***,and we discuss the contribution of diverse degradation pathways of the cell during the formation and stabilization of the Coxiella-containing vacuole.

关键词： Actin Coxiellosis Phagocytic pathway q fever

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Molecular epidemic survey on co-prevalence of scrub typhus and marine typhus in Yuxi city,Yunnan province of China

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Chinese Medical Journal 2007年第15期120卷 1314-1318页

作者： ZHANG Li-juan LI Xue-mei ZHANG De-rong ZHANG Jing-shan DI Ying LUAN Ming-chun FU Xiu-ping Department of Rickettsiology National Institute of Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing 102206 China Department of Epidemiology Hongta District Center for Disease Control and Prevention Yuxi 653100 China

Background Human rickettsioses are worldwide zoonoses and it is not easy to differentiate them from other infectious diseases because of their atypical manifestation. In recent years the number of patients with fever of unknown causes from Hongta District CDC, Yuxi city of Yunnan Province has been increasing significantly in the summer. Diagnosis of scrub typhus was made by local clinicians. In order to ascertain the disease, we undertook a laboratory investigation for such patients from August 18 to 26, 2005. Methods Active surveillance was conducted by Hongta District CDC Yuxi city of Yunnan Province from 2002 to 2004 and basic data were obtained from cases confirmed according to clinical definitions. Average incidences and town-level incidences were calculated during the study periods. Blood samples were analyzed by PCR and serological test. Based on the groEL gene sequences a paired general outer primers （Gro-1 and Gro-2） targeting typhus, spotted fever as well as scrub typhus and two paired inner primers （SF1, SR2 and TF1, TR2） for typhus together with spotted fever and scrub typhus, respectively, were designed to perform a multiplex-nested PCR. Serological assay was carried out by indirect immunofluorescence assay with 7 different rickettsial antigens, i.e., ***, ***, ***, ***, ***, *** and Coxilella burnetii phase Ⅱ Ag. Results Epidemiological surveillance showed that from 2002 to 2004, the average incidences of the scrub typhus or scrub typhus with murine typhus were 222.1/10^5, 204.3/10^5 and 109.6/10^5, respectively. Of 13 blood samples taken during acute stage of illness, 6 showed the amplified products for scrub typhus and the sequenced products showed 100%, 99%, 99%, 99%, 99%, 99% similarity to *** Karp but they shared the same deduced amino acid sequences, which indicated 100% identity with the heat shock protein of the *** Karp strain. Five yielded PCR products for murine typhus

关键词： scrub typhus murine typhus q fever prevalence Yuxi

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