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https://www.readbyqxmd.com/read/28070491/presentation-and-diagnosis-of-acute-q-fever-in-portugal-a-case-series
#1
Joana Alves, Francisco Almeida, Raquel Duro, Rita Ferraz, Susana Silva, Joana Sobrinho-Simões, António Sarmento
Q fever is a worldwide zoonotic infection caused by the obligate intracellular bacterium Coxiella burnetii that can course with acute or chronic disease. This series describes 7 cases of acute Q fever admitted in a Portuguese University Hospital between 2014 and 2015. All cases presented with hepatitis and had epidemiological history. Diagnosis was done by PCR on majority (5) and by serology and PCR in only 2. Serological tests can be negative in the initial period of the disease. Molecular biology methods by polymerase chain-reaction are extremely important in acute disease, allowing timely diagnosis and treatment...
2017: IDCases
https://www.readbyqxmd.com/read/28068185/prevalence-of-antibodies-against-coxiella-burnetii-in-korean-native-cattle-dairy-cattle-and-dogs-in-south-korea
#2
Kwang-Soo Lyoo, Doo Kim, Hyung Gwan Jang, Seung-Joon Lee, Mi Yeoun Park, Tae-Wook Hahn
Coxiella burnetii is a zoonotic agent and causes coxiellosis, which is a cause of reproductive failure in a range of animal species, including abortion and stillbirth and Q fever, which is most often characterized by an acute flu-like illness, mild pneumonia, and/or hepatitis in humans. While livestock are well recognized worldwide as a source of infection, the zoonotic risk of C. burnetii infection in companion animals such as dogs may be overlooked. For serological diagnosis, indirect immunofluorescent assay (IFA) and enzyme-linked immunosorbent assay (ELISA) are generally considered good methods for prevalence surveys of coxiellosis...
January 9, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28057140/-spatial-analysis-and-prediction-of-severe-fever-with-thrombocytopenia-syndrome-in-zhejiang-province-2011-2015
#3
H C Wu, X P Xu, C Wu, Q B Lu, Z Y Ding, J F Lin
Objective: To understand the distribution of the severe fever with thrombocytopenia syndrome (SFTS) in Zhejiang province, and predict the incidence and the probability of SFTS outbreak. Methods: Based on the cases of SFTS from 2011-2015, software ArcGIS 10.0 was used to analyze the spatial distribution, Moran's I and Getis-Ord Gi were used to analyze the spatial autocorrelation. The incidence trend was explored by trend surface analysis, and the prediction was made by Kriging interpolation. Results: The incidence of SFTS increased and the distribution expanded in Zhejiang from 2011 to 2015, the seasonal and the demographic characteristics of SFTS were similar to the previous research; there were regional clustering of the cases (P<0...
November 10, 2016: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28055578/critical-aspects-for-detection-of-coxiella-burnetii
#4
Marcella Mori, Katja Mertens, Sally J Cutler, Ana Sofia Santos
Coxiella burnetii is a globally distributed zoonotic γ-proteobacterium with an obligatory intracellular lifestyle. It is the causative agent of Q fever in humans and of coxiellosis among ruminants, although the agent is also detected in ticks, birds, and various other mammalian species. Requirements for intracellular multiplication together with the necessity for biosafety level 3 facilities restrict the cultivation of C. burnetii to specialized laboratories. Development of a novel medium formulation enabling axenic growth of C...
January 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28051196/perioperative-occupational-exposure-to-coxiella-burnetii-infected-thoracic-endovascular-aneurysm-stent-graft
#5
Adebisi Idowu Obafemi, Jade Le
We conducted this study to determine the risk of transmission of Q fever to health care workers (HCWs) during perioperative exposure to Coxiella burnetii-infected thoracic endovascular aneurysm stent graft. Pre-operative and 6-week post-operative phase I and II IgG Q fever antibody titers were determined in 14 staff members of an operation room. The room had a negative pressure and all the members of the surgical team wore either a fitted N-95 mask or a powered purified air respirator. Phase I and II IgG antibody titers were <1:16 for 11 of the 14 studied HCWs; 2 HCWs did not follow up at 6 weeks and 1 had a pre-exposure phase II IgG titer of 1:128 with no change 6 weeks later...
January 2017: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28051025/retrospective-examination-of-q-fever-endocarditis-an-underdiagnosed-disease-in-the-mainland-of-china
#6
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
BACKGROUND: Q fever endocarditis, a chronic illness caused by Coxiella burnetii, can be fatal if misdiagnosed 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...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28036394/first-identification-and-description-of-rickettsioses-and-q-fever-as-causes-of-acute-febrile-illness-in-nicaragua
#7
Megan E Reller, Ijeuru Chikeka, Jeremy J Miles, J Stephen Dumler, Christopher W Woods, Orlando Mayorga, Armando J Matute
BACKGROUND: Rickettsial infections and Q fever present similarly to other acute febrile illnesses, but are infrequently diagnosed because of limited diagnostic tools. Despite sporadic reports, rickettsial infections and Q fever have not been prospectively studied in Central America. METHODOLOGY/PRINCIPAL FINDINGS: We enrolled consecutive patients presenting with undifferentiated fever in western Nicaragua and collected epidemiologic and clinical data and acute and convalescent sera...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28009103/experts-perceptions-on-china-s-capacity-to-manage-emerging-and-re-emerging-zoonotic-diseases-in-an-era-of-climate-change
#8
A Hansen, J Xiang, Q Liu, M X Tong, Y Sun, X Liu, K Chen, S Cameron, S Hanson-Easey, G-S Han, P Weinstein, C Williams, P Bi
Zoonotic diseases transmitted by arthropods and rodents are a major public health concern in China. However, interventions in recent decades have helped lower the incidence of several diseases despite the country's large, frequently mobile population and socio-economic challenges. Increasing globalization, rapid urbanization and a warming climate now add to the complexity of disease control and prevention and could challenge China's capacity to respond to threats of emerging and re-emerging zoonoses. To investigate this notion, face-to-face interviews were conducted with 30 infectious disease experts in four cities in China...
December 23, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28007602/molecular-epidemiology-of-coxiella-burnetii-in-french-livestock-reveals-the-existence-of-three-main-genotype-clusters-and-suggests-species-specific-associations-as-well-as-regional-stability
#9
Joulié Aurélien, Sidi-Boumedine Karim, Bailly Xavier, Gasqui Patrick, Barry Séverine, Jaffrelo Lydia, Poncet Charles, Abrial David, Yang Elise, Leblond Agnès, Rousset Elodie, Jourdain Elsa
Q fever is a worldwide zoonosis caused by the bacterium Coxiella burnetii. In domestic ruminants, Q fever main clinical manifestations are abortions. Although the clinical signs may differ between ruminant species, C. burnetii's genetic diversity remains understudied in enzootic areas. Here, we focused on France, where Q fever is enzootic, with the aims to (a) identify potential associations between C. burnetii genotypes and ruminant host species; (b) assess the distribution of C. burnetii genotypes both within French farms and across France's major livestock-farming regions; and (c) suggest a subset of markers for future genotypic studies...
December 20, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28002852/q-fever-pneumonia-in-southwest-germany-radiographic%C3%A2-and-clinical-findings
#10
Andrea Biecker, Michael Bitzer, Erwin Biecker
Purpose Q fever is a worldwide zoonosis that causes clinical symptoms ranging from mild flu-like symptoms to severe pneumonia and/or hepatitis. This retrospective study was conducted to describe the radiographic and clinical signs in patients with acute Q fever pneumonia in Southwest Germany. Patients and Methods 40 patients with IgM-positive Q fever-related pneumonia who were treated in the years 2006 to 2016 in our hospital were retrospectively identified. Clinical and laboratory data were analyzed. Chest radiographs were reviewed by two radiologists and interpreted using a standardized protocol...
December 21, 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/27989050/seroprevalence-of-q-fever-in-patients-undergoing-heart-valve-replacement-surgery
#11
Owen Seddon, Reza Ashrafi, Jacqueline Duggan, Rhianydd Rees, Christine Tan, John Williams, Gail Carson, Brendan Healy
BACKGROUND: Q fever, caused by the rickettsia Coxiella burnetii, is a worldwide zoonotic disease with both acute and chronic manifestations. Endocarditis is the principal chronic manifestation. Q fever can easily be mistaken for degenerative valve disease due to its indolent presentation, the fastidious nature of the organism (routine cultures are negative), and the absence of a typical echocardiographic and macroscopic appearance for endocarditis. Prosthetic valve failure, with associated morbidity and mortality, have been described following unrecognized infections...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27987380/coxiella-burnetii-q-fever-prevalence-in-associated-populations-of-humans-and-small-ruminants-in-the-gambia
#12
Jeroen Bok, Lenny Hogerwerf, Eveline A Germeraad, Hendrik I J Roest, Tisbeh Faye-Joof, Momodou Jeng, Davis Nwakanma, Arss Secka, Arjan Stegeman, Bart Goossens, Rita Wegmüller, Marianne A B van der Sande, Wim van der Hoek, Ousman Secka
OBJECTIVES: To simultaneously estimate the prevalence of antibodies against Coxiella burnetii (Q fever) among adults and small ruminants, and C. burnetii shedding prevalence among small ruminants in households in the Kiang West district of The Gambia; and to assess associated risk factors. METHODS: Sera of 599 adults and 615 small ruminants from 125 compounds within 12 villages were tested for antibodies against C. burnetii using ELISA. Vaginal swabs and milk samples of 155 small ruminants were tested using PCR to investigate shedding of C...
December 17, 2016: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/27978904/-clinical-manifestations-of-10-cases-of-imported-human-zika-virus-disease-in-jiangmen-city-of-china
#13
N C Zheng, Y H Liu, Q Chen, M T Chen, C G Zheng, Z W Yang, J Hu, J H Liang, M H Xue, A Q Chen, Q W Feng
Objective: To study the clinical manifestations and detection method for imported patients of Zika virus disease. Method: The records of symptoms, signs and laboratory results were collected and analyzed. The specimen of blood, saliva and urine from patients were collected. Results: Two of ten patients had mild fever. The visible cutaneous maculopapular rash of the trunk and extremities was observed in all patients. Seven patients were observed congestive conjunctivitis and only one patient gave an account of itching...
December 6, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27976471/coxiella-burnetii-serological-reactions-and-bacterial-shedding-in-primiparous-dairy-cows-in-an-endemically-infected-herd-impact-on-milk-yield-and-fertility
#14
M Freick, H Enbergs, J Walraph, R Diller, J Weber, A Konrath
Coxiella burnetii (C. burnetii) is the causative agent of Q fever both in humans and animals. The objectives of this study were to investigate seropositivity and bacterial shedding in heifers and primiparous cows in an endemically infected herd and to assess the effects on post-partum diseases, fertility and milk production. At the age of 9 months, 96 Holstein heifers were included. Sampling was performed reproduction-orientated: at the beginning of the study, at detection of first pregnancy, 3 weeks before expected calving date (blood serum), at parturition and after 21, 42, 100 and 150 days in milk (DIM) (blood serum, vaginal swabs and milk)...
December 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27966835/the-epidemiology-and-characteristics-of-q-fever-and-co-infections-with-scrub-typhus-murine-typhus-or-leptospirosis-in-taiwan-a-nationwide-database-study
#15
C-H Lai, W Sun, C-H Lee, J-N Lin, M-H Liao, S-S Liu, T-Y Chang, K-F Tsai, Y-C Chang, H-H Lin, Y-H Chen
Q fever (QF) is a worldwide zoonosis associated with outbreaks. Only a few nationwide studies regarding the surveillance and epidemiology of human QF have been reported. Although QF is endemic in Taiwan, a nationwide database investigation of the epidemiology and characteristics of QF and its associations with scrub typhus (ST), murine typhus (MT) and leptospirosis (LS) has never been reported. We analysed nationwide databases of suspected QF, ST, MT and LS cases from October 2007 to December 2014 obtained from the Centers for Disease Control, Taiwan...
December 14, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27958239/investigation-of-zoonotic-infections-in-risk-groups-in-ordu-university-hospital-turkey
#16
Y Cetinkol, Ö Enginyurt, B Çelebi, A A Yıldırım, S Çankaya, O C Aktepe
AIMS: Zoonotic diseases, which are a major public health problem in our city, have a negative impact on public health and also cause economic losses due to yield losses of animals and deaths. This study was carried out to determine the seroprevalence of tularemia, bartonellosis, brucellosis, Q fever, and cystic echinococcosis in the risk groups for zoonotic infection. SUBJECTS AND METHODS: Ninety serum samples were taken from people in the risk groups in covering veterinarian, butchers, farmers and examined with the following tests: Microagglutination test for tularemia, indirect fluorescent antibody test (IFAT) for bartonellosis, standard tube agglutination test for brucellosis, IFAT IgG for Q fever, and enzyme-linked immunosorbent assay IgG test for cystic hydatid...
January 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27939552/intramammary-infusion-of-escherichia-coli-lipopolysaccharide-negatively-affects-feed-intake-chewing-and-clinical-variables-but-some-effects-are-stronger-in-cows-experiencing-subacute-rumen-acidosis
#17
S Aditya, E Humer, P Pourazad, R Khiaosa-Ard, J Huber, Q Zebeli
Feeding high-grain diets increases the risk of subacute rumen acidosis (SARA) and adversely affects rumen health. This condition might impair the responsiveness of cows when they are exposed to external infectious stimuli such as lipopolysaccharide (LPS). The main objective of this study was to evaluate various responses to intramammary LPS infusion in healthy dairy cows and those experimentally subjected to SARA. Eighteen early-lactating Simmental cows were subjected to SARA (n = 12) or control (CON; n = 6) feeding conditions...
December 8, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27928094/seroconversion-to-causes-of-febrile-illness-in-mongolian-peacekeepers-deployed-to-south-sudan
#18
Altangerel Enkhtsetseg, Rendoo Davadoorj, Stefan Fernandez, Duangrat Mongkolsirichaikul, Damdin Altantuul, Erdene Elbegdorj, Lkhagvasuren Ganchimeg, Samuel L Yingst
Immediately before deployment (Fall 2012) and after deployment (Spring 2013) in support of United Nations peacekeeping operations, Mongolian Armed Forces medical personnel obtained serum samples from the first contingent of Mongolian peacekeepers deploying to South Sudan to monitor serologic evidence of exposure to diseases that cause acute febrile illness. A total of 632 paired samples were tested for IgG antibody for the following (number of seroconversions in parentheses): Rickettsia (spotted fever and typhus groups) (25), West Nile fever virus (WNV) (23), Coxiella burnetii (causative agent of Q fever) (12), dengue virus (8), leptospirosis (6), chikungunya virus (0), Congo-Crimean hemorrhagic fever virus (0), Japanese encephalitis virus (0), and Rift Valley fever virus (0)...
December 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27927265/trends-and-risk-factors-for-human-q-fever-in-australia-1991-2014
#19
T S Sloan-Gardner, P D Massey, P Hutchinson, K Knope, E Fearnley
Australian abattoir workers, farmers, veterinarians and people handling animal birthing products or slaughtering animals continue to be at high risk of Q fever despite an effective vaccine being available. National Notifiable Diseases Surveillance System data were analysed for the period 1991-2014, along with enhanced risk factor data from notified cases in the states of New South Wales and Queensland, to examine changes in the epidemiology of Q fever in Australia. The national Q fever notification rate reduced by 20% [incident rate ratio (IRR) 0·82] following the end of the National Q fever Management Program in 2006, and has increased since 2009 (IRR 1·01-1·34)...
December 8, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27884946/analysis-of-the-caenorhabditis-elegans-innate-immune-response-to-coxiella-burnetii
#20
James M Battisti, Lance A Watson, Myo T Naung, Adam M Drobish, Ekaterina Voronina, Michael F Minnick
The nematode Caenorhabditis elegans is well established as a system for characterization and discovery of molecular mechanisms mediating microbe-specific inducible innate immune responses to human pathogens. Coxiella burnetii is an obligate intracellular bacterium that causes a flu-like syndrome in humans (Q fever), as well as abortions in domesticated livestock, worldwide. Initially, when wild type C. elegans (N2 strain) was exposed to mCherry-expressing C. burnetii (CCB) a number of overt pathological manifestations resulted, including intestinal distension, deformed anal region and a decreased lifespan...
November 24, 2016: Innate Immunity
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