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Bartonella henselae

Tsutomu Mito, Yusuke Hirota, Shingo Suzuki, Kazutaka Noda, Takanori Uehara, Yoshiyuki Ohira, Masatomi Ikusaka
A 65-year-old Japanese man was admitted with a 4-month history of fatigue and exertional dyspnea. Transthoracic echocardiography revealed a vegetation on the aortic valve and severe aortic regurgitation. Accordingly, infective endocarditis and heart failure were diagnosed. Although a blood culture was negative on day 7 after admission, a prolonged blood culture with subculture was performed according to the patient's history of contact with cats. Consequently, Bartonella henselae was isolated. Bartonella species are fastidious bacteria that cause blood culture-negative infective endocarditis...
2016: Internal Medicine
David Dornbos, Jocelyn Morin, Joshua R Watson, Jonathan Pindrik
Osteomyelitis of the spine with associated spinal epidural abscess represents an uncommon entity in the pediatric population, requiring prompt evaluation and diagnosis to prevent neurological compromise. Cat scratch disease, caused by the pathogen Bartonella henselae, encompasses a wide spectrum of clinical presentations; however, an association with osteomyelitis and epidural abscess has been reported in only 4 other instances in the literature. The authors report a rare case of multifocal thoracic osteomyelitis with an epidural abscess in a patient with a biopsy-proven pathogen of cat scratch disease...
September 23, 2016: Journal of Neurosurgery. Pediatrics
Ignacio Troncoso, Christof Fischer, Francisca Arteaga, Cristian Espinoza, Teresa Azócar, Katia Abarca
INTRODUCTION: Bartonella henselae infection is a worldwide zoonosis with the domestic cat as reservoir. Although people with occupational contact with these pets are risk population only few studies of prevalence in them have been reported. METHODS: A study of seroprevalence of B. henselae was performed to veterinaries and other persons with occupational contact with cats, residents from the Bío-Bío region of Chile. Serum IgG antibodies against B. henselae were determined by indirect immunofluorescence (IFI)...
June 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
E Rossi, A Perrone, D Narese, M Cangelosi, S Sollai, A Semeraro, M Mortilla, C Defilippi
Cat-scratch disease (CSD) is a zoonosis in children, result of infection by Bartonella henselae, a gram-negative bacillus. Infection is generally characterized by regional and self-limited lymphadenopathy after exposure to a scratch or bite from a cat. Rarely, B. henselae is cause of fever of unknown origin (FUO), with dissemination to various organs, most often involving the reticuloendothelial system (liver, spleen, bone marrow), mimicking an inflammatory rather than a lymphoproliferative disease. Whole-body Magnetic Resonance Imaging (WBMRI), in association with diffusion-weighted imaging (DWIBS), allows a comprehensive evaluation of pediatric patients, without the risks inherent to ionizing radiation...
July 2016: La Clinica Terapeutica
Hongkuan Deng, Qiuxiang Pang, Huiqing Xia, Danielle Le Rhun, Evelyne Le Naour, Chengliang Yang, Muriel Vayssier-Taussat, Bosheng Zhao
Bartonellosis is caused by the genus Bartonella. Bartonella is widely distributed in the ruminants, cats, dogs, rodents and other mammals including humans. At least 13 species or subspecies of Bartonella are zoonotic, and each species appears to be highly adapted to one or a limited number of reservoir animals in which it is asymptomatic, while it can be transmitted to humans in which a variety of clinical manifestations can be caused. It was reported that Bartonella henselae infection rate among domestic cats was high in nature, making it one of the leading, important, and easily neglected zoonotic diseases...
September 2016: Microbial Pathogenesis
Daniel Christmann
Lyme borreliosis (LB) is certainly the most common infection transmitted through the bite of Ixodes in Northern Hemisphere. These ticks are also able to transmit other microorganisms such as the bacteria Anaplasma phagocytophilum (Ap) and Bartonella henselae (Bh), with the latter discovered fairly recently, leading to diferent clinical presentations often close to those of LB. The aim of this study was to evaluate the frequency of co-infection by either of these bacteria in patients with LB, particularly when a treatment with beta-lactam antibiotic was only partially effective...
April 2015: Bulletin de L'Académie Nationale de Médecine
S Molia, R W Kasten, M J Stuckey, H J Boulouis, J Allen, G M Borgo, J E Koehler, C C Chang, B B Chomel
Bartonellae are blood- and vector-borne Gram-negative bacteria, recognized as emerging pathogens. Whole-blood samples were collected from 58 free-ranging lions (Panthera leo) in South Africa and 17 cheetahs (Acinonyx jubatus) from Namibia. Blood samples were also collected from 11 cheetahs (more than once for some of them) at the San Diego Wildlife Safari Park. Bacteria were isolated from the blood of three (5%) lions, one (6%) Namibian cheetah and eight (73%) cheetahs from California. The lion Bartonella isolates were identified as B...
November 2016: Epidemiology and Infection
Jerome A Lindeboom, Willem H Schreuder
Here, we report chronic suppurating submandibular swelling occurring in two siblings, with one case caused by nontuberculous mycobacteria and the other caused by Bartonella henselae. These two infections share a similar clinical presentation, but the treatment modalities differed.
August 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Paulo Eduardo Neves Ferreira Velho, Maria Ângela Bellomo-Brandão, Marina Rovani Drummond, Renata Ferreira Magalhães, Gabriel Hessel, Maria de Lourdes Barjas-Castro, Cecília Amélia Fazzio Escanhoela, Gilda Maria Barbaro Del Negro, Thelma Suely Okay
Severe anemia and cholestatic hepatitis are associated with bartonella infections. A putative vertical Bartonella henselae infection was defined on the basis of ultrastructural and molecular analyses in a three-year-old child with anemia, jaundice and hepatosplenomegaly since birth. Physicians should consider bartonellosis in patients with anemia and hepatitis of unknown origin.
July 11, 2016: Revista do Instituto de Medicina Tropical de São Paulo
Benoît Lacroix, Vitaly Citovsky
Historically, the members of the Agrobacterium genus have been considered the only bacterial species naturally able to transfer and integrate DNA into the genomes of their eukaryotic hosts. Yet, increasing evidence suggests that this ability to genetically transform eukaryotic host cells might be more widespread in the bacterial world. Indeed, analyses of accumulating genomic data reveal cases of horizontal gene transfer from bacteria to eukaryotes and suggest that it represents a significant force in adaptive evolution of eukaryotic species...
2016: MBio
Azin Abazari, Kevin Kaplowitz, Patrick Sibony
We report a case of bilateral multifocal retinochoroiditis and bilateral optic disc edema in a patient with cat-scratch disease from Bartonella henselae. The patient initially had negative serologic testing. Repeat testing showed a markedly increased IgG and IgM convalescent titer and the development of a branch retinal artery and vein occlusion. In patients for whom there is a high clinical suspicion of cat-scratch disease, a convalescent titer should be obtained 2-3 weeks following a negative initial result...
2015: Digital Journal of Ophthalmology: DJO
Yun-Yan Liu, Long-Sheng Zhao, Xiu-Ping Song, Peng-Chen Du, Dong-Mei Li, Zhong-Ke Chen, Qi-Yong Liu
Bartonella henselae and Bartonella quintana are the major etiological agents of infective endocarditis, which pose a serious threat to human health. To simultaneously detect and differentiate B. henselae and B. quintana, a reliable and fast method to simultaneously detect and differentiate B. henselae and B. quintana is required. In this study, we developed and validated two rapid, highly sensitive and specific, duplex, real-time polymerase chain reaction (PCR) assays-one based on high-resolution melting (HRM) analysis, and the other on TaqMan probes-to simultaneously detect and differentiate B...
June 14, 2016: Journal of Microbiological Methods
Rosario Cerpa Polar, Gabriela Orellana, Wilmer Silva Caso, José Sánchez Carbonel, Javier Santisteban, Juana Del Valle Mendoza, Javier Santisteban
Cat scratch's disease caused by Bartonella henselae, is known to be a self-limited benign process in immunocompetent children. The association with neurologic manifestations is very uncommon especially in patient with no immunologic defects and in cases without specific treatment. A 7 years old male patient, without any immunocompromised defect, presented an atypic presentation of the cat scratch disease. The patient came to the hospital in two opportunities in a status epilepticus, in both cases the diagnosis was encephalitis by Bartonella henselae and the evolution with treatment was monitored with PCR (polymerase chain reaction) in cerebrospinal fluid and blood, as well as IFI (IgM, IgG) serology (indirect immunofluorescence)...
June 2016: Asian Pacific Journal of Tropical Medicine
Ramin Mazaheri Nezhad Fard, Seyed Milad Vahedi, Iraj Ashrafi, Faranak Alipour, Golnaz Sharafi, Hesam Akbarein, Seyed Javid Aldavood
One of the most important species of the Bartonella genus is B. henselae that causes a zoonotic infection, cat scratch disease (CSD). The main source of the bacteria is cat and the carrier is Ctenocephalides felis flea. One hundred and forty nail and saliva samples were collected from 70 domestic cats. Positive samples for B. henselae were characterized by polymerase chain reaction (PCR) and sequencing. Sequences of gltA gene were trimmed using BioEdit software and then compared with the sequences of the same gene from B...
2016: Veterinary Research Forum
Nandhakumar Balakrishnan, Marna Ericson, Ricardo Maggi, Edward B Breitschwerdt
BACKGROUND: The genus Bartonella is comprised of a rapidly increasing number of pathogenic species that induce a seemingly diverse spectrum of neurological symptoms. During the 12 year period that followed the initial onset of neurological and gastrointestinal symptoms, an 11 year-old girl experienced a spectrum of neurological complaints including frequent headaches, visual and auditory hallucinations, anxiety, vision loss involving the lower left quadrant of both eyes, episodic bouts of generalized paralysis, facial palsy, chronic insomnia, seizures, dizziness, cognitive dysfunction, and memory loss...
2016: Parasites & Vectors
Maria-Flaminia Persichetti, Laia Solano-Gallego, Lorena Serrano, Laura Altet, Stefano Reale, Marisa Masucci, Maria-Grazia Pennisi
BACKGROUND: Vector-borne pathogens are the subject of several investigations due to the zoonotic concern of some of them. However, limited data are available about the simultaneous presence of these pathogens in cats and their ectoparasites. The aim of the present study was to define the species of ectoparasites found on cats as well as to investigate vector-borne pathogens in cats and their ectoparasites in southern Italy. METHODS: Blood from 42 cats and fleas or flea pools (n = 28) and ticks (n = 73) collected from them were investigated by quantitative PCR for the detection of vector-borne pathogens...
2016: Parasites & Vectors
Jessica H Leibler, Christine M Zakhour, Preety Gadhoke, Jessie M Gaeta
INTRODUCTION: In high-income countries, homeless individuals in urban areas often live in crowded conditions with limited sanitation and personal hygiene. The environment of homelessness in high-income countries may result in intensified exposure to ectoparasites and urban wildlife, which can transmit infections. To date, there have been no systematic evaluations of the published literature to assess vector-borne and zoonotic disease risk to these populations. OBJECTIVES: The primary objectives of this study were to identify diversity, prevalence, and risk factors for vector-borne and zoonotic infections among people experiencing homelessness and extreme poverty in urban areas of high-income countries...
July 2016: Vector Borne and Zoonotic Diseases
Manuel Alamán Valtierra, Carmen Simón Valencia, Hector Fuertes Negro, Amaya Unzueta Galarza, Byron Flores Somarriba, Nabil Halaihel Kassab
OBJECTIVE: Bartonella henselae is responsible for the Cat Scratch Disease in humans, being it underdiagnosed. This study aims to detect and quantify the load of B. henselae DNA in oral and whole blood samples from stray and shelthered cats from Zaragoza (Spain), and analyze associations with epidemiological and clinical factors. METHODS: 47 cats entered in the estudy. Real time PCR was used to detect B. henselae DNA in blood and oral samples. The SPSS software was applied to the statistical analysis of positivity of paired samples and its relationship with variables as age, sex, origin, month of sampling and fleas/ticks observation in fur and clinical factors (health status and observation of oral lesions)...
2016: Revista Española de Salud Pública
Taylor Rising, Nicholas Fulton, Pauravi Vasavada
Bartonella henselae is a bacterium which can cause a wide range of clinical manifestations, ranging from fever of unknown origin to a potentially fatal endocarditis. We report a case of Bartonella henselae infection in a pediatric-aged patient following a scratch from a kitten. The patient initially presented with a prolonged fever of unknown origin which was unresponsive to antibiotic treatment. The patient was hospitalized with worsening fevers and night sweat. Subsequent ultrasound imaging demonstrated multiple hypoechoic foci within the spleen...
2016: Case Reports in Radiology
Eva Spada, Ilaria Canzi, Luciana Baggiani, Roberta Perego, Fabrizio Vitale, Antonella Migliazzo, Daniela Proverbio
Stray cats in the city of Milan, Italy, were tested for Leishmania infantum and other selected infections. Twenty-seven cats (30.0%) were seroreactive by indirect fluorescent antibody test (IFAT), with an antibody titer of 1:40 for 16 (17.7%) cats and 1:80 (cut-off for feline L. infantum infection) for 11 (12.2%) cats. One blood (1.1%) and one popliteal lymph node (1.1%) sample tested positive by real-time polymerase chain reaction; no oculoconjunctival swabs tested positive. Feline immunodeficiency virus, feline leukemia virus, and feline coronavirus (FCoV) seroprevalence determined by enzyme-linked immunosorbent assay was 6...
April 2016: Comparative Immunology, Microbiology and Infectious Diseases
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