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https://www.readbyqxmd.com/read/29048299/blood-culture-negative-endocarditis-morocco
#1
Najma Boudebouch, M'hammed Sarih, Abdelfattah Chakib, Salma Fadili, Drissi Boumzebra, Zahira Zouizra, Badie Azamane Mahadji, Hamid Amarouch, Didier Raoult, Pierre-Edouard Fournier
We investigated the microorganisms causing blood culture-negative endocarditis (BCNE) in Morocco. We tested 19 patients with BCNE by serologic methods, molecular methods, or both and identified Bartonella quintana, Staphylococcus aureus, Streptococcus equi, and Streptococcus oralis in 4 patients. These results highlight the role of these zoonotic agents in BCNE in Morocco.
November 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29048284/bartonella-quintana-and-typhus-group-rickettsiae-exposure-among-homeless-persons-bogot%C3%A3-colombia
#2
Álvaro A Faccini-Martínez, Andrea C Márquez, Diana M Bravo-Estupiñan, Omar-Javier Calixto, Christian A López-Castillo, Carlos A Botero-García, Marylin Hidalgo, Claudia Cuervo
In 2015, we investigated Bartonella quintana and typhus group rickettsiae in body lice from homeless persons in Bogotá, Colombia. We found B. quintana-infected body lice and seroprevalence of this microorganism in 19% of homeless persons and typhus group rickettsiae in 56%. Public health professionals should start preemptive measures and active vector control.
November 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29044082/rickettsial-retinitis-direct-bacterial-infection-or-an-immune-mediated-response
#3
Rohan Chawla, Gadkar Amit Pundlik, Rama Chaudhry, Chandan Thakur
Infectious retinitis postfebrile illness is known to be caused by chikungunya, dengue, West Nile virus, Bartonella, Lyme's disease, Rift Valley fever, rickettsia, Herpes viruses etc. Rickettsia is Gram-negative bacteria transmitted by arthropods vectors. Ocular involvement is common including conjunctivitis, keratitis, anterior uveitis, panuveitis, retinitis, retinal vascular changes, and optic nerve involvement. Retinitis lesions in rickettsia can occur because of an immunological response to the bacteria or because of direct invasion and proliferation of bacteria in the inner retina...
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29043145/anca-associated-pauci-immune-glomerulonephritis-in-a-patient-with-bacterial-endocarditis-a-challenging-clinical-dilemma
#4
Andrea Cervi, Dylan Kelly, Iakovina Alexopoulou, Nader Khalidi
PURPOSE: We report the case of a 59-year-old man with chronic hepatitis B and C infection presenting with acute kidney injury and enterococcus faecalis-infective endocarditis (IE). An elevated proteinase-3 (PR3)-ANCA and pauci-immune glomerulonephritis (GN) on renal biopsy were discovered, corresponding to ANCA-mediated GN. We conducted a literature review to assess the role of ANCA in IE and treatment implications. METHODS: On systematic review of the literature, we found five previous cases whereby IE caused by streptococcus and bartonella species were related to ANCA vasculitis-associated GN...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29037227/molecular-detection-of-bartonella-spp-in-deer-ked-lipoptena-cervi-in-poland
#5
Tomasz Szewczyk, Joanna Werszko, Żaneta Steiner-Bogdaszewska, Witold Jeżewski, Zdzisław Laskowski, Grzegorz Karbowiak
BACKGROUND: The bacteria of the genus Bartonella are obligate parasites of vertebrates. Their distribution range covers almost the entire world from America, Europe, Asia to Africa and Australia. Some species of Bartonella are pathogenic for humans. Their main vectors are blood-sucking arthropods such as fleas, ticks and blood-feeding flies. One such dipteran able to transfer vector-borne pathogens is the deer ked (Lipoptena cervi) of the family Hippoboscidae. This species acts as a transmitter of Bartonella spp...
October 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28984726/ophthalmic-manifestations-of-bartonella-infection
#6
REVIEW
Radgonde Amer, Ilknur Tugal-Tutkun
PURPOSE OF REVIEW: The eye is commonly affected in disseminated cat scratch disease (CSD) caused by Bartonella species. This article reviews recently published data on epidemiology of CSD, clinical features of ocular involvement, diagnosis and treatment. RECENT FINDINGS: The annual incidence of CSD has been estimated as 4.7 per 100 000 in the United States. It occurs predominantly in the southern states, with a peak in January, and disproportionately affects children...
November 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28977771/molecular-surveillance-for-bartonella-borrelia-and-rickettsia-species-in-ticks-from-desert-bighorn-sheep-ovis-canadensis-and-mule-deer-odocoileus-hemionus-in-southern-california
#7
Sarah A Billeter, Lynn M Osikowicz, Joseph E Burns, Lora Konde, Ben J Gonzales, Renjie Hu, Michael Y Kosoy
Ticks (Acari: Ixodidae) were collected from 44 desert bighorn sheep (Ovis canadensis) and 10 mule deer (Odocoileus hemionus) in southern California during health inspections in 2015-16. Specimens were identified and screened by PCR analysis to determine the presence and prevalence of Bartonella, Borrelia, and Rickettsia species in ticks associated with these wild ruminants. None of the 60 Dermacentor hunteri and 15 Dermacentor albipictus ticks tested yielded positive PCR results. Additional tick specimens should be collected and tested to determine the prevalence of these confirmed or suspected tickborne pathogens within ruminant populations...
October 4, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28977767/evaluating-the-impacts-of-coinfection-on-immune-system-function-of-the-deer-mouse-peromyscus-maniculatus-using-sin-nombre-virus-and-bartonella-as-model-pathogen-systems
#8
Erin M Lehmer, Kathryn Lavengood, Mason Miller, Jacob Rodgers, Steven D Fenster
Simultaneous infections with multiple pathogens can alter the function of the host's immune system, often resulting in additive or synergistic morbidity. We examined how coinfection with the common pathogens Sin Nombre virus (SNV) and Bartonella sp. affected aspects of the adaptive and innate immune responses of wild deer mice (Peromyscus maniculatus). Adaptive immunity was assessed by measuring SNV antibody production; innate immunity was determined by measuring levels of C-reactive protein (CRP) in blood and the complement activity of plasma...
October 4, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28975409/diversity-and-prevalence-of-bartonella-species-in-small-mammals-from-slovakia-central-europe
#9
Eva Špitalská, Lenka Minichová, Elena Kocianová, Ľudovít Škultéty, Lenka Mahríková, Zuzana Hamšíková, Mirko Slovák, Mária Kazimírová
Wild-living rodents are important hosts for zoonotic pathogens. Bartonella infections are widespread in rodents; however, in Slovakia, knowledge on the prevalence of these bacteria in small mammals is limited. We investigated the prevalence and diversity of Bartonella species in the spleens of 640 rodents of six species (Apodemus flavicollis, Apodemus sylvaticus, Myodes glareolus, Microtus arvalis, Microtus subterraneus, and Micromys minutus) and in the European mole (Talpa europaea) from three different habitat types in south-western and central Slovakia...
October 3, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28969827/pathogens-in-ectoparasites-from-free-ranging-animals-infection-with-rickettsia-asembonensis-in-ticks-and-a-potentially-new-species-of-dipylidium-in-fleas-and-lice
#10
Van Lun Low, Batah Kunalan Prakash, Tiong Kai Tan, Mohd Sofian-Azirun, Fasihah Hanani Khairul Anwar, Wei Yin Vinnie-Siow, Sazaly AbuBakar
Vector-borne infections are persistent public health threats worldwide. In recent years, a number of mosquito-borne viruses have emerged or re-emerged to cause major disease outbreaks. Other vector-borne pathogens, however, remain understudied and much neglected especially in the developing regions of the world including Southeast Asia. In this study, the brown dog tick Rhipicephalus sanguineus sensu lato, cat louse Felicola subrostratus, and cat fleas Ctenocephalides felis and Ctenocephalides orientis collected from free-ranging cats and dogs in Malaysia were molecularly screened for the presence of Bartonella and Rickettsia bacteria, and Dipylidium tapeworm...
October 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28966892/bacterial-community-associated-with-worker-honeybees-apis-mellifera-affected-by-european-foulbrood
#11
Tomas Erban, Ondrej Ledvinka, Martin Kamler, Bronislava Hortova, Marta Nesvorna, Jan Tyl, Dalibor Titera, Martin Markovic, Jan Hubert
BACKGROUND: Melissococcus plutonius is an entomopathogenic bacterium that causes European foulbrood (EFB), a honeybee (Apis mellifera L.) disease that necessitates quarantine in some countries. In Czechia, positive evidence of EFB was absent for almost 40 years, until an outbreak in the Krkonose Mountains National Park in 2015. This occurrence of EFB gave us the opportunity to study the epizootiology of EFB by focusing on the microbiome of honeybee workers, which act as vectors of honeybee diseases within and between colonies...
2017: PeerJ
https://www.readbyqxmd.com/read/28935172/a-pediatric-case-with-peripheral-facial-nerve-palsy-caused-by-a-granulomatous-lesion-associated-with-cat-scratch-disease
#12
Chizuko Nakamura, Yuji Inaba, Keiko Tsukahara, Mie Mochizuki, Emi Sawanobori, Yozo Nakazawa, Kouki Aoyama
BACKGROUND: Cat scratch disease is a common infectious disorder caused by Bartonella henselae that is transmitted primarily by kittens. It typically exhibits a benign and self-limiting course of subacute regional lymphadenopathy and fever lasting two to eight weeks. The most severe complication of cat scratch disease is involvement of the nervous system, such as encephalitis, meningitis, and polyneuritis. Peripheral facial nerve palsy associated with Bartonella infection is rare; few reported pediatric and adult cases exist and the precise pathogenesis is unknown...
September 18, 2017: Brain & Development
https://www.readbyqxmd.com/read/28931077/detection-of-bacterial-pathogens-including-potential-new-species-in-human-head-lice-from-mali
#13
Nadia Amanzougaghene, Florence Fenollar, Abdoul Karim Sangaré, Mahamadou S Sissoko, Ogobara K Doumbo, Didier Raoult, Oleg Mediannikov
In poor African countries, where no medical and biological facilities are available, the identification of potential emerging pathogens of concern at an early stage is challenging. Head lice, Pediculus humanus capitis, have a short life, feed only on human blood and do not transmit pathogens to their progeny. They are, therefore, a perfect tool for the xenodiagnosis of current or recent human infection. This study assessed the occurrence of bacterial pathogens from head lice collected in two rural villages from Mali, where a high frequency of head lice infestation had previously been reported, using molecular methods...
2017: PloS One
https://www.readbyqxmd.com/read/28929965/-a-negleted-bacteria-with-a-case-bartonella-henselae
#14
Kamuran Türker, Bekir Çelebi, Şeyda Andaç, Pınar Bulut, Şenay Yalçın, Saniye Dolhan
Bartonella henselae the causative agent of cat scratch disease (CSD), is a gram-negative, coccobacillus, facultative intracellular bacterium CSD usually presents as a clinical form of benign local lymphadenopathy (LAP) but sometimes it may progress to severe life threatening complications. Despite the fact that CSD is known to be a common disease, which is one of the important causes of local LAPs in the world, there are few publications in our country. For the diagnosis, the clinician should suspect for CSD and has to ask to the patient whether there is a story of cat scratch or not...
July 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28927427/first-molecular-detection-and-characterization-of-zoonotic-bartonella-species-in-fleas-infesting-domestic-animals-in-tunisia
#15
Saba Zouari, Fatma Khrouf, Youmna M'ghirbi, Ali Bouattour
BACKGROUND: Bartonellosis is an emerging vector-borne disease caused by different intracellular bacteria of the genus Bartonella (Rhizobiales: Bartonellaceae) that is transmitted primarily by blood-sucking arthropods such as sandflies, ticks and fleas. In Tunisia, there are no data available identifying the vectors of Bartonella spp. In our research, we used molecular methods to detect and characterize Bartonella species circulating in fleas collected from domestic animals in several of the country's bioclimatic areas...
September 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28906180/amplification-of-mycoplasma-haemofelis-dna-by-a-pcr-for-point-of-care-use
#16
Jennifer Hawley, Tal Yaaran, Sarah Maurice, Michael R Lappin
We compared a qualitative in-clinic (IC)-PCR for the detection of Mycoplasma haemofelis DNA with the results of a commercial qualitative laboratory-based, conventional (c)PCR. In order to determine the specificity of both tests, Bartonella spp. samples were included. Forty-three previously tested blood samples with known PCR results for hemoplasmas and Bartonella spp. were selected. The samples were split between 2 laboratories. At the first laboratory, DNA was purified and run on 2 cPCR assays for the detection of hemoplasmas and Bartonella spp...
September 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28905982/vector-borne-diseases-in-cats-in-germany
#17
Michèle Bergmann, Katrin Hartmann
Vector-borne diseases (VBDs) are caused by a wide range of pathogens, which are transmitted by a variety of vectors, such as ticks and fleas. As a result of climate changes, more vector-borne diseases are becoming endemic in Germany, not only in dogs, but also in cats. For some of the pathogens prevalence data still need to be investigated in Germany. However, natural infections with Bartonella, Anaplasma, haemotropic Mycoplasma and Borrelia species have already been described in German cats. Clinical relevance of these pathogens is not fully understood, and it is still unknown, why most infected cats stay asymptomatic and which predisposing factors contribute to the development of clinical signs in cats...
September 13, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28902958/nonregenerative-immune-mediated-anemia-associated-with-a-diffuse-large-b-cell-lymphoma-in-a-captive-jaguar-panthera-onca
#18
Monika A Keresztes, Manfred Henrich, Penelope Baloi, Sascha Gerst, Jens-Christian Rudnick, Judith Langenstein, Andreas Moritz, Natali Bauer
An 18-year-old male castrated jaguar (Panthera onca) was presented with anorexia and continuous bleeding from the oral cavity after a history of fighting with the partner animal. Clinical evaluation revealed ulcerating lesions on the gingiva and hard palate and a hematoma on the tongue. Computed tomography of the head and endoscopic examination of the esophagus and stomach were unremarkable. Hematology and clinical chemistry revealed severe nonregenerative anemia, mild thrombocytopenia, and moderate azotemia...
September 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28902296/an-unusual-case-of-bacillary-angiomatosis-in-the-oral-cavity-of-an-aids-patient-who-had-no-concomitant-tegumentary-lesions-case-report-and-review
#19
Walter de Araujo Eyer-Silva, Pedro Eugênio Mendes Arena Soares, Marcelo Costa Velho Mendes de Azevedo, Guilherme Almeida Rosa da Silva, Dario José Hart Pontes Signorini, Rogerio Neves-Motta, Jorge Francisco da Cunha Pinto, Lívia Machado Moura, Rodrigo Panno Basílio-de-Oliveira, Luciana Ferreira de Araujo, Alexsandra Rodrigues de Mendonça Favacho, Elba Regina Sampaio Lemos
Bacillary angiomatosis (BA) is an angioproliferative disease of immunocompromised patients that usually presents as vascular tumors in the skin and subcutaneous tissues. It is caused by chronic infections with either Bartonella henselae or B. quintana. Oral cavity BA is exceedingly rare and even rarer without simultaneous cutaneous disease. We report herein the case of a 51-year-old HIV-infected man who presented severe odynophagia and an eroded lesion on the hard palate that progressed to an oronasal fistula...
August 24, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28900358/risk-assessment-of-legionellosis-in-cardiology-units
#20
REVIEW
P Laganà, S Delia, E Avventuroso, M Casale, G Dattilo
Infective Endocarditis (IE) is a disease with high morbidity and mortality. Nowadays, in addition to classic pathogens were isolated exigent Gram negative bacteria as A. baumannii, A. lwoffii, C. burnetii, Bartonella, Chlamydia and Legionella. We present our experience of Legionella isolations in environmental sample (water and air) collected from the Cardiology units belonging to two hospitals in Messina (Italy). A total of 80 samples were carried out, 30 and 50, respectively in the first and in the second structure: 55 of water and 25 of aerosol...
June 2017: Journal of Preventive Medicine and Hygiene
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