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Bartonella henselae

Marina Rovani Drummond, Bruno Grosselli Lania, Pedro Paulo Vissoto de Paiva Diniz, Rovilson Gilioli, Daniele Masselli Rodrigues Demolin, Diana Gerardi Scorpio, Edward B Breitschwerdt, Paulo Eduardo Neves Ferreira Velho
Bartonella spp. constitute 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...
March 14, 2018: Journal of Clinical Microbiology
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
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
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
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
Benoît Lacroix, Vitaly Citovsky
Besides the massive gene transfer from organelles to the nuclear genomes, which occurred during the early evolution of eukaryote lineages, the importance of horizontal gene transfer (HGT) in eukaryotes remains controversial. Yet, increasing amounts of genomic data reveal many cases of bacterium-to-eukaryote HGT that likely represent a significant force in adaptive evolution of eukaryotic species. However, DNA transfer involved in genetic transformation of plants by Agrobacterium species has traditionally been considered as the unique example of natural DNA transfer and integration into eukaryotic genomes...
March 3, 2018: Current Topics in Microbiology and Immunology
M Antonieta Núñez, Karla Contreras, M Soledad Depix, Enrique Geoffroy, Nicolás Villagra, Sandra Mellado, Ana M Salinas
BACKGROUND: Bartonella henselae is the causal agent of cat scratch disease in immunocompetent persons and bacterial angiomatosis in immunocompromised patients. In Chile, the prevalence of antibodies against B. henselae in healthy children and adolescents is 13.3%, in persons with occupational risk 60.5%, and in cats 85.6%. There are no published data regarding the seroprevalence in blood donors in our country, so determining if B. henselae is present in the blood of donors at the time of donation is very important, since this microorganism can survive up to 35 days in the red blood cells stored in a blood bank at 4 °C...
December 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
Ami Schattner, Livnat Uliel, Ina Dubin
A healthy patient presented with painful skin lesions on the anterior surface of her legs. Erythema nodosum was diagnosed but all the usual causes were ruled out. The finding of bilateral enlarged axillary lymph nodes with necrosis and granulomas led to the diagnosis of Bartonella infection, an unusual cause of erythema nodosum. Imaging also revealed splenomegaly and small para-aortic lymph nodes. Up to one quarter of the patients with cat-scratch disease present atypically, a considerably higher prevalence than previously reported...
February 16, 2018: BMJ Case Reports
Basma El Hamzaoui, Maureen Laroche, Lionel Almeras, Jean Michel Bérenger, Didier Raoult, Philippe Parola
BACKGROUND: Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) has recently emerged in the field of entomology as a promising method for the identification of arthropods and the detection of associated pathogens. METHODOLOGY/PRINCIPAL FINDINGS: An experimental model of Ctenocephalides felis (cat fleas) infected with Bartonella quintana and Bartonella henselae was developed to evaluate the efficacy of MALDI-TOF MS in distinguishing infected from uninfected fleas, and its ability to distinguish fleas infected with Bartonella quintana from fleas infected with Bartonella henselae...
February 16, 2018: PLoS Neglected Tropical Diseases
Ines Boujelben, Radhouane Gdoura, Adnane Hammami
Infective endocarditis (IE) remains a severe and potentially fatal disease demanding sophisticated diagnostic strategies for detection of the causative microorganisms. The aim of the present study was to develop a broad-range 16S ribosomal RNA gene polymerase chain reaction in the routine diagnostic of IE for the early diagnosis of fatal disease. A broad-range PCR technique was selected and evaluated in terms of its efficiency in the diagnosis of endocarditis using 19 heart valves from patients undergoing cardiovascular surgeries at the Habib Bourguiba Hospital of Sfax, Tunisia, on the grounds of suspected IE...
February 8, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
Martin G Randell, Nandhakumar Balakrishnan, Rebekah Gunn-Christie, Andrew Mackin, Edward B Breitschwerdt
Ineffective erythropoiesis was diagnosed in an 8-year-old male castrated Labrador Retriever. Despite treatment with immunosuppressive therapy for suspected immune-mediated erythrocyte maturation arrest, resolution of the nonregenerative anemia was not achieved. Following documentation of Bartonella henselae bacteremia by Bartonella alpha proteobacteria growth medium (BAPGM) enrichment blood culture, immunosuppressive therapy was discontinued, and the anemia resolved following prolonged antibiotic therapy. Bartonella immunofluorescent antibody testing was negative, whereas B henselae western blot was consistently positive...
February 2, 2018: Veterinary Clinical Pathology
Maria Livia Burzo, Mariangela Antonelli, Giovanni Pecorini, Angela M R Favuzzi, Raffaele Landolfi, Andrea Flex
RATIONALE: Fever of unknown origin (FUO) can be determined by different conditions among which infectious diseases represent the main cause. PATIENT CONCERNS: A young woman, with a history of aortic stenosis, was admitted to our unit for a month of intermittent fever associated with a new diastolic heart murmur and splenomegaly. Laboratory tests were negative for infectious screening. The total body computed tomography (CT) scan excluded abscesses, occulted neoplasia, or lymphadenopathy...
December 2017: Medicine (Baltimore)
Rita Armitano, Agustina Lisa, Claudia Martínez, Lucia Cipolla, Ricardo Iachini, Monica Prieto
Cat scratch disease (CSD) is caused by Bartonella henselae, which mainly affects children. The cat is the reservoir. The laboratory diagnosis is based on the detection of antibodies by the Indirect Immunofluorescence (IFI) assay. The objective of this study was to analyze the serological evidence of B. henselae infection in pediatric patients that met the clinical/epidemiological criteria for suspected CSD. We studied 92 patients, who were categorized into four serological groups: 1) IgG (+)/IgM(+), 31,5% (n=29); 2) IgG (-)/IgM(+), 10,9% (n=10); 3) IgG (+)/IgM(-), 9,8% (n=9); 4) IgG (-)/IgM(-), 47,8% (n=44)...
January 11, 2018: Revista Argentina de Microbiología
Muneeb Ilyas, Nishita Maganty, Zachary Ginsberg, Amit Sharma
Though there is an abundance of information on cutaneous malignancies in transplant recipients, cutaneous infections in solid organ transplant recipients (SOTRs) are underrepresented in the dermatological literature. Our paper provides a comprehensive review of bacterial cutaneous infections within the solid organ transplant population. Cutaneous bacterial infections may lead to significant morbidity and even mortality in this immunosuppressed population. Thus, it is to the benefit of both dermatologists and other transplant care providers to better understand and recognize the features of cutaneous bacterial infections in SOTRs...
January 10, 2018: Dermatology: International Journal for Clinical and Investigative Dermatology
Victoria Toumanidou, Anna Dastiridou, Nikolaos Kourtis, Sofia Androudi
PURPOSE: To report an unusual case of Bartonella henselae neuroretinitis (BHNR) in a patient with myelinated retinal nerve fibers (MRNFs). METHODS: A 56-year-old male presented for a consultation, because of a decrease in visual acuity from his right eye. Onset was unclear and the patient was not sure if this was a new symptom. RESULTS: Fundoscopy revealed MRNF without any other clinical findings. After 2 weeks, the patient returned complaining of further visual acuity decrease...
December 28, 2017: Ocular Immunology and Inflammation
Artem Rogovskyy, Maliha Batool, David C Gillis, Patricia J Holman, Igor V Nebogatkin, Yuliya V Rogovska, Maksym S Rogovskyy
Lyme borreliosis (LB) is caused by tick-borne spirochetes of the Borrelia burgdorferi sensu lato complex. LB is the most prevalent vector-borne illness in Ukraine, but current data on the prevalence of LB pathogens in their tick vector, Ixodes ricinus, are lacking. I. ricinus ticks may also carry Borrelia miyamotoi, an emerging relapsing fever group spirochete that has been implicated in human illness. Despite its zoonotic potential, the prevalence of B. miyamotoi in ticks has not been examined in Ukraine. Similarly, data on the prevalence of other important tick-borne pathogens, Anaplasma phagocytophilum, Babesia spp...
December 15, 2017: Ticks and Tick-borne Diseases
Esmeralda Núñez Cuadros, Ana Cabrera Del Moral, Jose Manuel Jiménez Hinojosa, Isabel Leiva Gea, Lourdes Conejo Muñoz
No abstract text is available yet for this article.
December 7, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
Jan Šlapeta, Andrea Lawrence, Michael P Reichel
Fleas are commonly recorded on stray as well as domestic dogs and cats in Hong Kong. Fleas can be a major cause of pruritus in dogs and cats and also vectors of potentially zoonotic bacteria in the genera Rickettsia and Bartonella. Morphological examination of 174 fleas from dogs and cats living in Hong Kong revealed only cat fleas (Ctenocephalides felis). Cytochrome c oxidase subunit 1 gene (cox1) genotyping of 20 randomly selected specimens, revealed three cox1 haplotypes (HK-h1 to HK-h3). The most common haplotype was HK-h1 with 17 specimens (17/20, 85%)...
April 2018: Parasitology International
Edoardo Magni, Fabrizio Bertelloni, Micaela Sgorbini, Valentina V Ebani
OBJECTIVE: To investigate the occurrence of Bartonella sp. infection in asymptomatic horses and donkeys living in Tuscany, Central Italy. METHODS: Blood samples were collected from 77 horses and 15 donkeys and tested by indirect immunofluorescent test to detect antibodies against Bartonella sp. and by PCR to detect the pathogen. RESULTS: Fifty-four (58.69%; 95% CI: 47.95%-68.87%) animals, 9 donkeys and 45 horses, were seropositive with antibody titers ranging from 1:64 to 1:512...
November 2017: Asian Pacific Journal of Tropical Medicine
E Lashnits, M Correa, B C Hegarty, A Birkenheuer, E B Breitschwerdt
BACKGROUND: Improved understanding of Bartonella species seroepidemiology in dogs may aid clinical decision making and enhance current understanding of naturally occurring arthropod vector transmission of this pathogen. OBJECTIVES: To identify demographic groups in which Bartonella exposure may be more likely, describe spatiotemporal variations in Bartonella seroreactivity, and examine co-exposures to other canine vector-borne diseases (CVBD). ANIMALS: A total of 15,451 serology specimens from dogs in North America were submitted to the North Carolina State University, College of Veterinary Medicine Vector Borne Disease Diagnostic Laboratory between January 1, 2008, and December 31, 2014...
January 2018: Journal of Veterinary Internal Medicine
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