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Bartonella henselae

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https://www.readbyqxmd.com/read/29755630/echocardiographic-features-in-bartonella-endocarditis-a-case-series
#1
Orathai Pachirat, Sompop Prathanee, George Watt
Bartonella spp. are emerging pathogens that are reported as the cause of blood culture-negative endocarditis ( BCNE). However, echocardiographic features and assessment of this endocarditis remains unclear. Four patients with B. henselae endocarditis were identified. All patients had underlying cardiac conditions: rheumatic heart disease in three, congenital heart disease in one. Evidence of vegetations was found on the aortic valve in all patients with large, highly mobile vegetations and severely destroyed valves demonstrated by the transthoracic echocardiogram leading to severe aortic regurgitation and heart failure...
April 2018: Cardiology Research
https://www.readbyqxmd.com/read/29730195/transient-myocardial-thickening-in-a-bartonella-henselae-positive-cat
#2
J L Joseph, E M Oxford, R A Santilli
A 3-year-old castrated male domestic shorthair presented to the Cornell University Hospital for Animals for acute onset respiratory distress. Thoracic radiographs, echocardiogram, and electrocardiogram (ECG) revealed left-sided congestive heart failure, myocardial thickening with left atrial dilation, and sinus rhythm conducted with a left bundle branch block, respectively. Cardiac troponin I was elevated and continued to increase over 36 h (1.9 ng/mL, 3.1 ng/mL, and 3.5 ng/mL, sequentially every 12 h)...
May 2, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29729679/bartonella-vinsonii-subsp-berkhoffii-and-b-henselae-in-dogs
#3
A Müller, F Soto, M Sepúlveda, P Bittencourt, J L Benevenute, P Ikeda, R Z Machado, M R André
This study aimed to molecularly survey Bartonella in dogs from Chile. Quantitative real-time PCR (qPCR) for Bartonella spp. based on nuoG gene was performed in 139 blood samples taken from dogs belonging to rural localities of the Valdivia Province, Los Ríos region, southern Chile. nuoG qPCR-positive samples were submitted to conventional PCR assays for ftsZ, gltA, rpoB and nuoG genes and sequencing for speciation and phylogenetic analysis. Based upon qPCR results, Bartonella spp. occurrence in dogs was 4...
May 6, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29728431/a-miraculous-recovery-bartonella-henselae-infection-following-a-red-ant-bite
#4
Pramod K Guru, Anjali Agarwal, Ashley Fritz
Infections caused by the Bartonella species are responsible for the human diseases collectively called 'bartonellosis'. The clinically important human infections are mostly caused by the three species (eg, B. bacilliformis, B. quintana and B. henselae ) of Bartonella out of the many progressively increasing identified species. Bartonella henselae transmitted by the arthropod vector, fleas, after cat bite is responsible for the rare multisystem cat scratch disease in humans. We present an extremely rare case of B...
May 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29713803/-bartonella-neuroretinitis-an-atypical-manifestation-of-cat-scratch-disease
#5
N Lapp, M Ulbig, C P Lohmann, A Laubichler
Cat scratch disease (CSD) typically manifests as a febrile lymphadenopathy and is caused by a Bartonella henselae infection after contact with cats. This article describes the case of an atypical presentation of CSD in a 52-year-old patient with acute unilateral loss of vision and headache without fever or lymphadenopathy. Funduscopic examination showed an optic disc swelling and macular star exsudates, pathognomonic for infectious neuroretinitis. A Bartonella henselae infection was confirmed serologically...
April 30, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29703000/rheumatological-presentation-of-bartonella-koehlerae-and-bartonella-henselae-bacteremias-a-case-report
#6
Bobak Robert Mozayeni, Ricardo Guillermo Maggi, Julie Meredith Bradley, Edward Bealmear Breitschwerdt
INTRODUCTION: Systemic Bartonella spp. infections are being increasingly reported in association with complex medical presentations. Individuals with frequent arthropod exposures or animal contact appear to be at risk for acquiring long standing infections with Bartonella spp. CASE REPORT: This case report describes infections with Bartonella koehlerae and Bartonella henselae in a female veterinarian whose symptoms were predominantly rheumatologic in nature. Infection was confirmed by serology, polymerase chain reaction (PCR), enrichment blood culture, and DNA sequencing of amplified B koehlerae and B henselae DNA...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29686571/-bartonella-endocarditis-with-glomerulonephritis-in-a-patient-with-complete-transposition-of-the-great-arteries
#7
Helen Hashemi, Tiana R Endicott-Yazdani, Christopher Oguayo, David M Harmon, Tuan Tran, Ginger Tsai-Nguyen, Raul Benavides, Cedric W Spak, Hoang-Lan Nguyen
We describe a patient with history of dextro-transposition of the great vessels, ventricular septal defect, and pulmonary valve replacement who presented with fatigue, prolonged fever, and leg edema. He was found to have kidney injury, pancytopenia, and liver congestion. Echocardiogram revealed thickened leaflets with prolapsing vegetation on the pulmonary valve. Given the negative blood cultures, high Bartonella henselae immunogobulin G titer (≥1:1024) and positive immunoglobulin M titer (≥1:20), he was diagnosed with Bartonella endocarditis complicated with glomerulonephritis...
January 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29668398/bartonella-henselae-and-rickettsia-felis-detected-in-cat-fleas-ctenocephalides-felis-derived-from-eastern-austrian-cats
#8
Georg Gerhard Duscher, Adnan Hodžić, Aleksandar Potkonjak, Michael W Leschnik, Joachim Spergser
Cats and cat fleas (Ctenocephalides felis) are vectors of the zoonotic bacterial pathogens Bartonella henselae and Rickettsia felis, which are the causative agents of "cat scratch disease" and "cat flea typhus," respectively. In the surroundings of Vienna (Austria), we identified 11 (10.5%; n = 105) B. henselae-positive fleas originating from 8 cats (20.5%; n = 39). One flea was positive for R. felis. There should be high levels of awareness among veterinarians and animal keepers as to the handling of cats, especially if free roaming, stray, or feral...
April 18, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29664377/characterization-of-clinical-isolates-of-bartonella-henselae-strains-south-korea
#9
Hea Yoon Kwon, Young Kyoung Park, Sun Myoung Lee, Ji Hyeon Baek, Jae-Seung Kang, Moon-Hyun Chung, Eun Ji Kim, Jin-Soo Lee
Bartonella henselae, a gram-negative bacterium, is a common causative agent of zoonotic infections. We report 5 culture-proven cases of B. henselae infection in South Korea. By alignment of the 16S rRNA sequences and multilocus sequencing typing analysis, we identified all isolates as B. henselae Houston-1 strain, which belongs to sequence type 1.
May 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29664374/bartonella-henselae-dna-in-seronegative-patients-with-cat-scratch-disease
#10
Masashi Yanagihara, Hidehiro Tsuneoka, Ayano Tanimoto, Ken-Ichiro Otsuyama, Jun Nishikawa, Tomohiro Matsui, Junzo Nojima, Kiyoshi Ichihara
We used real-time PCR to detect Bartonella henselae DNA in 7.9% (5/63) of blood specimens from seronegative patients in Japan suspected of having cat-scratch disease. The combined use of serologic tests and real-time PCR to analyze blood specimens is recommended for the prompt, noninvasive laboratory diagnosis of cat-scratch disease.
May 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29594802/molecular-strategy-for-the-diagnosis-of-infectious-lymphadenitis
#11
Elsa Prudent, Bernard La Scola, Michel Drancourt, Emmanouil Angelakis, Didier Raoult
Molecular methods have been considered to be the gold standard for the diagnosis of infectious lymphadenitis. However, culture remains critical in the case of low bacterial concentrations. We used molecular assays and culture to examine fresh lymph node biopsies from patients with suspected infectious lymphadenopathy. We analyzed 1762 lymph node biopsies of which 522 (30%) samples were found positive by real-time PCR; the most commonly amplified bacteria were Bartonella henselae (n = 438, 84%), Francisella tularensis (n = 46, 9%), and Mycobacterium spp...
March 29, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29561507/an-11-year-old-male-with-vertebral-osteomyelitis-and-a-paraspinal-abscess
#12
Ioannis Kopsidas, Rodanthi Margariti, Maria Gavra, Angeliki Syngelou, Christos Zambakidis, Maria Tsolia, Nikolaos Nikolaidis, Nikos Spyridis
We report the case of an 11 year-old immunocompetent patient presenting with a two-week history of upper back pain, diagnosed with thoracic vertebral osteomyelitis and a paraspinal abscess due to Bartonella henselae. He was treated with gentamicin and doxycycline followed by oral rifampicin and doxycycline with favorable outcome.
March 15, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29558992/anaplasma-phagocytophilum-bartonella-spp-haemoplasma-species-and-hepatozoon-spp-in-ticks-infesting-cats-a-large-scale-survey
#13
Florent Duplan, Saran Davies, Serina Filler, Swaid Abdullah, Sophie Keyte, Hannah Newbury, Chris R Helps, Richard Wall, Séverine Tasker
BACKGROUND: Ticks derived from cats have rarely been evaluated for the presence of pathogens. The aim of this study was to determine the prevalence of Anaplasma phagocytophilum, Bartonella spp., haemoplasma species and Hepatozoon spp. in ticks collected from cats in the UK. METHODS: Five hundred and forty DNA samples extracted from 540 ticks collected from cats presenting to veterinarians in UK practices were used. Samples underwent a conventional generic PCR assay for detection of Hepatozoon spp...
March 20, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29554931/clinical-evaluation-of-outdoor-cats-exposed-to-ectoparasites-and-associated-risk-for-vector-borne-infections-in-southern-italy
#14
Maria Flaminia Persichetti, Maria Grazia Pennisi, Angela Vullo, Marisa Masucci, Antonella Migliazzo, Laia Solano-Gallego
BACKGROUND: Cats can be carriers of infected arthropods and be infected with several vector-borne pathogens (VBP) but there is limited knowledge about their pathogenic role in cats. RESULTS: A cross-sectional controlled study investigated the clinical status and antibody (Bartonella henselae, Rickettsia conorii, Ehrlichia canis, Anaplasma phagocytophilum, Babesia microti and Leishmania infantum) and/or blood PCR (Mycoplasma spp., Bartonella spp., Rickettsia spp...
March 20, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29554918/does-co-infection-with-vector-borne-pathogens-play-a-role-in-clinical-canine-leishmaniosis
#15
Marta Baxarias, Alejandra Álvarez-Fernández, Pamela Martínez-Orellana, Sara Montserrat-Sangrà, Laura Ordeix, Alicia Rojas, Yaarit Nachum-Biala, Gad Baneth, Laia Solano-Gallego
BACKGROUND: The severity of canine leishmaniosis (CanL) due to Leishmania infantum might be affected by other vector-borne organisms that mimic its clinical signs and clinicopathological abnormalities. The aim of this study was to determine co-infections with other vector-borne pathogens based on serological and molecular techniques in dogs with clinical leishmaniosis living in Spain and to associate them with clinical signs and clinicopathological abnormalities as well as disease severity...
March 20, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29540455/improvement-of-bartonella-henselae-dna-detection-in-cat-blood-samples-by-combining-molecular-and-culture-methods
#16
Marina Rovani Drummond, Bruno Grosselli Lania, Pedro Paulo Vissotto de Paiva Diniz, Rovilson Gilioli, Daniele Masselli Rodrigues Demolin, Diana Gerardi Scorpio, Edward B Breitschwerdt, Paulo Eduardo Neves Ferreira Velho
Bartonella spp. are bacteria of worldwide distribution that cause asymptomatic to fatal infections in animals and humans. The most common zoonotic species is Bartonella henselae , for which cats are the major natural reservoir host. To better understand Bartonella sp. diagnostic limitations, we determined the frequency of bloodstream infection in 112 cats by comparing and combining the results of multiple conventional and nested PCRs from blood and liquid culture samples. Using liquid culture conventional PCR, Bartonella sp...
May 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29519505/bartonella-henselae-in-small-indian-mongooses-herpestes-auropunctatus-from-grenada-west-indies
#17
David A Jaffe, Bruno B Chomel, Rickie W Kasten, Edward B Breitschwerdt, Ricardo G Maggi, Ashleigh McLeish, Ulrike Zieger
Many mammals are established hosts for the vector borne bacterial genus, Bartonella. Small Indian mongooses (Herpestes auropunctatus) have only been reported as a possible host for Bartonella henselae in southern Japan. Confirming Bartonella presence in mongooses from other regions in the world may support their role as potential reservoirs of this human pathogen. Specifically, documenting Bartonella in Caribbean mongooses would identify a potential source of zoonotic risk with mongoose-human contact in the New World...
March 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29513260/otolaryngological-symptoms-in-patients-treated-for-tick-borne-diseases
#18
Klaudia Sowula, Jacek Składzień, Joanna Szaleniec, Jolanta Gawlik
infections are borreliosis (Lyme disease) and tick-borne encephalitis (TBE). Lately there is growing incidence of Bartonella, Babesia, Anaplasma and Brucella co-infections. The similarity between the symptoms of tick-borne diseases and other pathologies causes serious diagnostic issues. MATERIAL AND METHODS: 216 patients aged 18-55, who presented to the outpatient clinic for tick-borne diseases in the years 2014-2016, were enrolled in the study. The patients had been diagnosed with Lyme disease and co-infections...
February 28, 2018: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29507029/encephalopathy-in-an-adult-with-cat-scratch-disease
#19
Michael Samarkos, Vasiliki Antoniadou, Aristeidis G Vaiopoulos, Mina Psichogiou
We report the case of a 53-year-old healthy man, presenting with confusion. The patient had been clinically diagnosed with cat-scratch disease (CSD) and prescribed a 10-day course of doxycycline orally. Approximately a week after he had completed the treatment, he was admitted to our department with confusion. Neurological examination revealed expressive dysphasia with no motor or sensory deficits. Cerebrospinal fluid (CSF) examination showed only increased content. Imaging with CT and MRI of the brain did not reveal any abnormalities, and funduscopy was normal...
March 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29501703/seek-and-find-pcr-analyses-of-skin-infections-in-west-european-travelers-returning-from-abroad-with-an-eschar
#20
Aurélie Morand, Emmanouil Angelakis, Mehdi Ben Chaabane, Philippe Parola, Didier Raoult, Philippe Gautret
BACKGROUND: Skin infections are among the leading causes of diseases in travelers. Diagnosing pathogens could be difficult. METHOD: We applied molecular assays for the diagnostic of a large collection of skin biopsies and swabs from travelers with suspected skin infections. All samples were tested by qPCR for Coxiella burnetti, Bartonella sp., Rickettsia sp., Borrelia sp., Ehrlichia sp., Tropheryma whipplei, Francisella tularensis, Mycobacteria sp., Staphylococcus aureus, Streptococcus pyogenes, Leishmania spp...
March 2, 2018: Travel Medicine and Infectious Disease
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