BARTONELLOSIS: ONE HEALTH PERSPECTIVES on an EMERGING INFECTIOUS DISEASE Edward B

Total Page:16

File Type:pdf, Size:1020Kb

BARTONELLOSIS: ONE HEALTH PERSPECTIVES on an EMERGING INFECTIOUS DISEASE Edward B 7/08/2014 BARTONELLOSIS: ONE HEALTH PERSPECTIVES ON AN EMERGING INFECTIOUS DISEASE Edward B. Breitschwerdt, DVM CENTER FOR COMPARATIVE MEDICINE AND TRANSLATIONAL RESEARCH North Carolina State University College of Veterinary Medicine & Galaxy Diagnostics, Research Triangle Park, NC BARTONELLA SPECIES • Gram negative, short pleomorphic rods • Family: BARTONELLACEAE ● Order: Rhizobiales ● Class: Alpha Proteobacteria • Fastidious: Division time 22-24 hrs • Cellular targets: •Erythrocytes •Endothelial Cells •Microglia Cells •Macrophages •CD34 Progenitor Cells Kordick DL, Breitschwerdt EB: J Clin Microbiol. 33: 1655-56, 1999 Rhizobiales 1 7/08/2014 THE STATE OF BARTONELLOSIS! “It is the mark of an educated mind to be able to entertain a thought without accepting it” Aristotle My Thought: Is Bartonellosis A Modern Day “Hidden” Epidemic? Bubonic Plague 1411 HOW CAN YOU HIDE AN EPIDEMIC? PERHAPS IT IS EASY: 1. Start with an unknown genus of bacteria. 2. Behave as a stealth pathogen that is difficult to detect or isolate. 3. Maintain a large and diverse pet and wildlife reservoir in nature. 4. Facilitate transmission through multiple vectors and by other means. BARTONELLA, HIV, PCR AND VASOPROLIFERATIVE DISEASE! Bacillary 1990,s Angiomatosis Peliosis Hepatis Relman D, et. al.NEJM: 1990 2 7/08/2014 BARTONELLA SPECIES AND VASOPROLIFERATIVE DISEASES • Bacillary Angiomatosis (Dogs & Humans) • Spontaneous Splenic Rupture (Jaguar & Human) • Hemangiopericytoma in a 12 year-old Female English Sheepdog* • Epitheloid Hemangioendothelioma in a 13-year-old male (Hepatic)* • EHE in patients from Australia and England** • Hemangiopericytoma (Dog, Wolf, Horse)*** *Breitschwerdt EB, et. al. JCM, 2009 **Mascarelli PE, et. al. JCM, 2011 ***Beerlage C, et al. Bartonella vinsonii subsp. berkhoffii and Bartonella henselae as potential causes of proliferative vascular disease in animals. Med Microbiol Immunol 201: 319-26, 2012. BARTONELLA ENDOCARDITIS Chomel B B, et al. Bartonella endocarditis: A pathology shared by animal reservoirs and patients. Ann NY Acad Sc 1166: 120-126, 2009. HUMAN YEAR CANINE YEAR B. quintana 93 B. vinsonii 95 B. elizabethae 93 (berkhoffii) B. henselae 93 B. clarridgeae 01 B. washoensis 98 B. vinsonii arup. 99 B. washoensis 03 B. vinsonii berk. 00 B. quintana 05 B. koehlerae 04 B. henselae 09 B. alsatica 05 B. koehlerae 09 B. mayotimonensis 10 B. rochalimae 09 THE POSTULATE OF COMPARATIVE INFECTIOUS DISEASE CAUSATION Vergil is credited with stating: “Happy is he who knows the causes of things”. Bartonella spp. and disease causation: Endocarditis Granulomatous Inflammatory Disease Chronic Intravascular Infection Vasoproliferative Tumors Breitschwerdt EB, et al: Koch’s Postulates and the Pathogenesis of Comparative Infectious Disease Causation associated with Bartonella species. J Comparative Pathology 3: 1-11, 2013 3 7/08/2014 COMPARATIVE DISEASE FEATURES OF BARTONELLOSIS Canine Human Peliosis hepatis + + Bacillary angioma + + Endocarditis + + Myocarditis + + Granulomatous Lymphadenitis + + Hepatitis + + Encephalitis + + ITP/IMHA + + KNOWN VECTOR TRANSMITTED BARTONELLA SPP. B. bacilliformis - sandfly, Lutzomia verrucarum B. quintana - human body louse, Pediculus humanus humanus B. henselae - cat flea, Ctenocephalides felis B. grahamii - rodent flea, Ctenphthalmus nobilis B. bovis – horn fly, Haematobia spp Source: www.earlham.edu Feces Internalization Regurgitation blood meal 1 6 5 2,3 Adapted and modified from Dehio et al. Nature 2005 4 7/08/2014 BARTONELLA: RESERVOIR HOSTS Reservoirs: • Rodents • Cats • Dogs • Wildlife • Ruminants • Human beings • Others BARTONELLA MELOPHAGI: NEW ZOONOTIC BARTONELLA SPP. Bartonella melophagi DNA Sequencing Sheep keds (Michael Kosoy) Sheep Blood (David Bemis) Isolation from Human Blood (BAPGM Platform) Patient 1: Pericarditis- California Patient 2: Chronic fatigue syndrome- Ohio/NC Maggi R, Breitschwerdt EB. Emerg Infect Dis 2009 FLEAS, CATS AND BARTONELLA SPECIES • B. henselae • B. clarridgeiae • B. koehlerae • B. bovis? • B. quintana? FLEA CONTROL! Pet/Flea Cycle Wildlife/Pet/Flea Cycle Photo: Stephen Jaffee DVM 5 7/08/2014 BARTONELLA KOEHLERAE AND NEUROCOGNITIVE ABNORMALITIES • 18 Year-old Woman • Peripheral Visual Loss, Sensory Neuropathy, Hallucinations (4 year history) • Progression: Headaches, joint pain, back pain, mood swings, dizziness • Neurologist, Psychiatrist, Neuro-ophthalmol • B. koehlerae seroreactive, BAPGM enrichment blood culture positive Breitschwerdt EB, et al. J Clin Microbiol 49: 3415-17, 2011. BARTONELLA KOEHLERAE Breitschwerdt EB. et al J Clin Microb, 2011 Sample Blood BAPGM Bk IFA Bh IFA Bvb IFA Day PCR PCR 0 Bspp Neg 64* <16 <16 294 Neg Bk 256 <16 <16 507 Neg Bk 256 <16 <16 801 Neg Neg <16 <16 <16 TICK TRANSMISSION OF BARTONELLA SPECIES Billeter SA, Levy MG, Chomel BB, Breitschwerdt EB: Vector Transmission of Bartonella species with emphasis on the potential for tick transmission. Med & Vet Entomol 22: 2008. YES (1995-2005) Case-based evidence. (Dogs and Humans) Epidemiological Data (Dogs) PCR Data (Ticks) MAYBE (2008) Vector transmission of Bartonella henselae by Ixodes ricinus. EID, 2008. YES!- Reis C, et al. Plos Neglected Trop Dis. 2011 6 7/08/2014 BVB GENOTYPE I: HISTORICAL PROGRESSION • Polyarthritis • Epistaxis • Wt Loss, Seizures, • Endocarditis Vasculitis BARTONELLA IFA B. HENSELAE B. VINSONII SUBSP. BERKHOFFII WILL AN INSECT TISSUE CULTURE MEDIUM ENHANCE THE GROWTH OF FASTIDIOUS BACTERIA? Christmas Holiday , 2003 Dr. Sushama Sontakke 7 7/08/2014 GALAXY DIAGNOSTICS www.galaxydx.com Breitschwerdt EB, Sontakke S. US Patent # 7,115,385 Media and Methods for Cultivation of Microorganisms. Issued October, 2006 Chief Scientific Officer A company devoted to diagnostic documentation of infections with Bartonella spp. and other fastidious bacteria. Transfer of BAPGM isolation approach to CDC, Duke University & other researchers Kosoy M, et al. Bartonella tamiae isolated from patients from Thailand J Clin Microbiol, 46: 772-775, 2008 BARTONELLA SPP. DETECTION AND ISOLATION USING BAPGM Sample DNA BAPGM culture DNA 16S-23S PCR - + Plate Isolates DNA Sequence Duncan AW, et al: A combined approach for the enhanced detection and isolation of Bartonella species. J Microbiol Methods 69:273-81, 2007 BARTONELLA VINSONII SUBSP. BERKHOFFII & HUMAN INFECTION Father 52 year-old male veterinarian Progressive weight loss (HIV/cancer?) Muscle weakness, Incoordination Poorly defined vascular lesion MRI Daughter 12 year-old, previously healthy Headache, muscle pain, insomnia Mother- BAPGM blood culture negative Two Sons- BAPGM blood culture negative Breitschwerdt EB, et al. Parasites and Vectors, Online, 2010 8 7/08/2014 CO-INFECTION: B. VINSONII & B. HENSELAE Sample Source Direct Enrichment Isolate /Date: FATHER Culture Blood 10/18 Bvb II Neg Neg Blood 11/5 Neg Bvb II Neg CSF 11/5 Neg Bvb II Oral Swab 12/11* Bvb II NA NA Saliva B spp NA NA Bld ACD 1/18 Neg Bh (H1) Neg Bld EDTA 1/18 Neg Bh (H1) Neg Breitschwerdt EB, et al. Parasites and Vectors, Online, Open Access 2010 OCCULT INFECTION: B. VINSONII SUBSP BERKHOFFII Sample Source Direct Enrichment Isolate /Date: Daughter Culture Blood 11/07 Neg Bvb II Neg Blood 11/28* Neg Bvb II Neg Serum 11/28 Neg Bvb II Neg Blood 01/11 Neg Bvb II Bvb II Blood 03/20 Neg Bvb II Neg Serum 03/20 Neg Neg Neg Breitschwerdt EB, et al. Parasites and Vectors Online, Open Access, 2010 BARTONELLA BACTEREMIA AND NEUROLOGICAL DYSFUNCTTION Patient Age Gender Neuro Abnor Barton sp. 1 23 F Seizures B. henselae 2 41 F H/I/ML B. henselae 3 44 F H/I/ML Bh/Bvb 4 54 F H/I/ML B. henselae 5 49 M Partial B. henselae Paralysis 6 14 M Migraines B. henselae 9 7/08/2014 SEIZURES WITH PERSISTENT BARTONELLA HENSELAE Breitschwerdt EB. et al J Clin Microb 46:2856, 2008 Sample Blood BAPGM Bh IFA Bq IFA Bvb IFA Day PCR PCR 0 Bh Neg 256 128 256 (H1) 31 Bh Bh 1024 256 256 *Isolate (H1) (H1)* 256 Neg Bh NT NT NT (CSF) (H1) 458 Neg Neg 64 64 64 HUMAN Perinatal TRANSMISSION OF BARTONELLA SPP. Father- B. vinsonii subsp. berkhoffii Mother- B. vinsonii subsp. berkhoffii/B. henselae Placental tissues (1998)- PCR negative Cervical biopsy (1991)- B. henselae Son (10 Yrs-old)- B. vinsonii subsp. berkhoffii/B. henselae Daughter (Twin, died 8 days of age)- B. vinsonii subsp. berkhoffii/B. henselae Entire family has been sick for 10-20 years. Breitschwerdt EB, et al J Clin Microbiol 48:2289, 2010. NEEDLE STICK TRANSMISSION OF BARTONELLA VINSONII (BERKHOFFII) • 7 Year-old male Newfoundland Dog • Referral- multiple cutaneous tumors • Cytology- Histiocytic, lymphocytic or undifferentiated epithelial neoplasia • Fractious Dog- inadvertent needle stick • Ehrlichiosis- Dx and Tx 5 months earlier • ??? Needle Stick Transmission • No seroconversion to Ehrlichia canis, PCR negative 10 7/08/2014 NEEDLE STICK TRANSMISSION OF BARTONELLA TO A VETERINARIAN Day Post- Direct Enrichment Bvb I inoculation Culture Seroconversion 5 Neg Neg <16 33 Bvb I* Neg <16 81 Neg Bvb I 32 (128) 234 Neg Neg <16 *Headaches, Parathesias BARTONELLOSIS: HIGH RISK AND RHEUMATOLOGICAL PATIENTS PARAMETER HIGH RISK RHEUMATOLOGIC Patient # 192 296 Male/age 55/51 91/36 Female/age 137/40 205/46 Seroreactive (%) 49 63 PCR + (%) 24 41 Maggi RG, Mascarelli PE, Pultorak EL, Hegarty BC, Bradley JM, Mozayeni BR, Breitschwerdt EB. Bartonella spp. bacteremia in high-risk immunocompetent patients. Diagn Microbiol Infect Dis. 2011 Dec;71(4):430-7. Maggi RG Pultorak EL, Mozayeni BR, Hegarty BC, Bradley JM, Correa, MT, Breitschwerdt EB. Bartonella henselae, Bartonella koehlerae and Bartonella vinsonii subsp. berkhoffii bacteremia in rheumatic patients
Recommended publications
  • Bartonella Henselae
    Maggi et al. Parasites & Vectors 2013, 6:101 http://www.parasitesandvectors.com/content/6/1/101 RESEARCH Open Access Bartonella henselae bacteremia in a mother and son potentially associated with tick exposure Ricardo G Maggi1,3*, Marna Ericson2, Patricia E Mascarelli1, Julie M Bradley1 and Edward B Breitschwerdt1 Abstract Background: Bartonella henselae is a zoonotic, alpha Proteobacterium, historically associated with cat scratch disease (CSD), but more recently associated with persistent bacteremia, fever of unknown origin, arthritic and neurological disorders, and bacillary angiomatosis, and peliosis hepatis in immunocompromised patients. A family from the Netherlands contacted our laboratory requesting to be included in a research study (NCSU-IRB#1960), designed to characterize Bartonella spp. bacteremia in people with extensive arthropod or animal exposure. All four family members had been exposed to tick bites in Zeeland, southwestern Netherlands. The mother and son were exhibiting symptoms including fatigue, headaches, memory loss, disorientation, peripheral neuropathic pain, striae (son only), and loss of coordination, whereas the father and daughter were healthy. Methods: Each family member was tested for serological evidence of Bartonella exposure using B. vinsonii subsp. berkhoffii genotypes I-III, B. henselae and B. koehlerae indirect fluorescent antibody assays and for bacteremia using the BAPGM enrichment blood culture platform. Results: The mother was seroreactive to multiple Bartonella spp. antigens and bacteremia was confirmed by PCR amplification of B. henselae DNA from blood, and from a BAPGM blood agar plate subculture isolate. The son was not seroreactive to any Bartonella sp. antigen, but B. henselae DNA was amplified from several blood and serum samples, from BAPGM enrichment blood culture, and from a cutaneous striae biopsy.
    [Show full text]
  • Bartonella Vinsonii Subsp. Berkhoffii and Bartonella Henselae
    Breitschwerdt et al. Parasites & Vectors 2010, 3:29 http://www.parasitesandvectors.com/content/3/1/29 RESEARCH Open Access Bartonella vinsonii subsp. berkhoffii and Bartonella henselae bacteremia in a father and daughter with neurological disease Edward B Breitschwerdt1*, Ricardo G Maggi1, Paul M Lantos2, Christopher W Woods2, Barbara C Hegarty1, Julie M Bradley1 Abstract Background: Bartonella vinsonii subsp. berkhoffii is an important, emerging, intravascular bacterial pathogen that has been recently isolated from immunocompetent patients with endocarditis, arthritis, neurological disease and vasoproliferative neoplasia. Vector transmission is suspected among dogs and wild canines, which are the primary reservoir hosts. This investigation was initiated to determine if pets and family members were infected with one or more Bartonella species. Methods: PCR and enrichment blood culture in Bartonella alpha Proteobacteria growth medium (BAPGM) was used to determine infection status. Antibody titers to B. vinsonii subsp. berkhoffii genotypes I-III and B. henselae were determined using a previously described indirect fluorescent antibody test. Two patients were tested sequentially for over a year to assess the response to antibiotic treatment. Results: Intravascular infection with B. vinsonii subsp. berkhoffii genotype II and Bartonella henselae (Houston 1 strain) were confirmed in a veterinarian and his daughter by enrichment blood culture, followed by PCR and DNA sequencing. Symptoms included progressive weight loss, muscle weakness, lack of coordination (the father) and headaches, muscle pain and insomnia (the daughter). B. vinsonii subsp. berkhoffii genotype II was also sequenced from a cerebrospinal fluid BAPGM enrichment culture and from a periodontal swab sample. After repeated courses of antibiotics, post-treatment blood cultures were negative, there was a decremental decrease in antibody titers to non-detectable levels and symptoms resolved in both patients.
    [Show full text]
  • BARTONELLOSIS: a ONE HEALTH PERSPECTIVES on an EMERGING INFECTIOUS DISEASE Edward B
    BARTONELLOSIS: A ONE HEALTH PERSPECTIVES ON AN EMERGING INFECTIOUS DISEASE Edward B. Breitschwerdt, DVM, DACVIM (Small Animal Internal Medicine) College of Veterinary Medicine, North Carolina State University, Raleigh, NC INTRODUCTION Bartonella species are fastidious Gram-negative bacteria that are highly adapted to a mammalian reservoir host and within which the bacteria usually cause a long-lasting intraerythrocytic bacteremia.1-3 These facts are of particular importance to veterinarians and physicians, as an increasing number of animal reservoir hosts have been identified for various Bartonella species. Among numerous other examples, Bartonella henselae has co-evolved with cats, Bartonella vinsonii subsp. berkhoffii has co-evolved with dogs and wild canines, and Bartonella bovis has co-evolved with cattle. Importantly, the list of reservoir-adapted Bartonella species, including a large number of rodent species that might serve as “pocket pets”, continues to grow exponentially, as new Bartonella spp. are discovered.2-3 Prior to 1990, there were only two named Bartonella species, whereas there are now at least 35 named and numerous unnamed or candidatus species, based upon deposited GenBank sequences or preliminary reports, respectively. In the natural reservoir host, chronic bacteremia with a Bartonella species can frequently be detected by blood culture or PCR in outwardly healthy individuals. In contrast, the diagnostic detection of a Bartonella spp. in a non-reservoir adapted host can be extremely difficult. Most, although not all diseases caused by Bartonella spp., occur in accidental hosts and these organisms are being increasingly implicated as a cause of zoonotic infections.4-8 Until recently, mechanisms that facilitate persistent Bartonella bacteremia in mammals were not well understood.
    [Show full text]
  • Bartonella Spp. - a Chance to Establish One Health Concepts in Veterinary and Human Medicine Yvonne Regier1, Fiona O’Rourke1 and Volkhard A
    Regier et al. Parasites & Vectors (2016) 9:261 DOI 10.1186/s13071-016-1546-x REVIEW Open Access Bartonella spp. - a chance to establish One Health concepts in veterinary and human medicine Yvonne Regier1, Fiona O’Rourke1 and Volkhard A. J. Kempf1* Abstract Infectious diseases remain a remarkable health threat for humans and animals. In the past, the epidemiology, etiology and pathology of infectious agents affecting humans and animals have mostly been investigated in separate studies. However, it is evident, that combined approaches are needed to understand geographical distribution, transmission and infection biology of “zoonotic agents”. The genus Bartonella represents a congenial example of the synergistic benefits that can arise from such combined approaches: Bartonella spp. infect a broad variety of animals, are linked with a constantly increasing number of human diseases and are transmitted via arthropod vectors. As a result, the genus Bartonella is predestined to play a pivotal role in establishing a One Health concept combining veterinary and human medicine. Keywords: Ticks, Fleas, Lice, Cats, Dogs, Humans, Infection, Transmission, Zoonosis Background between medical, veterinary and environmental re- The threat of infectious diseases to mankind has never searchers as well as public health officials for the early been greater than today. For the first time, political detection of health hazards affecting both humans and leaders of the 41st “G7 summit” in Schloss Elmau/ animals and to fight them on multiple levels. The genus Germany on June 7–8, 2015, set the topic “global health” Bartonella represents a prototypical example for zoo- (including infectious diseases) as one of the key issues notic pathogens as Bartonella species are infectious on their agenda.
    [Show full text]
  • Arthropod-Borne Infections in the United Kingdom and Saudi Arabia
    Arthropod-borne infections in the United Kingdom and Saudi Arabia Bassam Alharbi Supervised by: Dr. Kevin Bown School of Environment and Life Sciences University of Salford, Salford, UK Submitted In Partial Fulfilment of the Requirement of the Degree of Doctor of Philosophy, March 2018. TABLE OF CONTENTS Table of tables. .................................................................................................................... VI Table of Figures. ................................................................................................................ VII Declaration............................................................................................................................ X Acknowledgment. ................................................................................................................ XI Abstract. ............................................................................................................................. XII Chapter One ........................................................................................................................... 1 Introduction and the aims of this thesis ................................................................................. 1 1. Introduction. ...................................................................................................................... 2 1.2. Protozoan parasites. .................................................................................................... 3 1.2.1 .Trypanosomiasis..................................................................................................
    [Show full text]
  • Checklists for Bartonella, Babesia and Lyme Disease
    Checklists for Bartonella, Babesia and Lyme Disease 2012 Edition J.L. Schaller, M.D., M.A.R. and K. Mountjoy, M.S. i INTERNATIONAL ACADEMIC INFECTION RESEARCH PRESS Bank Towers • New Gate Center (305) Highway 41 [Tamiami Trail North] Naples, FL 34103 Copyright © 2012 by James Schaller, MD, MAR All rights reserved. Cover Design: Nick Botner Research: Randall Blackwell, Lindsay Gibson, Kimberly Mountjoy Library of Congress Cataloging Data Schaller, J. L; Mountjoy, K. Checklists for Bartonella, Babesia and Lyme Disease by J.L. Schaller and K. Mountjoy ISBN 978-0-9840889-5-9 1. Tick infections 2. Flea infections 3. Diagnosis Note on Citation Style The style of these references varies. Making them uniform would not add to the ability to locate a citation. Most were left as they appeared when uncovered from a wide range of locations. Manufactured in the United States of America First Edition ii To those working to restore real and concrete liberty to the United States Specifically, as the world’s top jailer, with 25% of the world’s inmates in the USA, we are not the freedom nation, we are the PRISON NATION. May God, conscience or peers, help sheriffs, police, child protection workers, judges and attorney generals to have real integrity, balance and a heart of service. In America the abuse of power in law enforcement and child services is now routine, and character, humility, kindness and wisdom need to be restored. If you are working to restore the rights of the poor, weak and falsely accused—this text and my affection are dedicated to you.
    [Show full text]
  • Human Bartonellosis: Perspectives of a Veterinary Internist
    HUMAN BARTONELLOSIS: PERSPECTIVES OF A VETERINARY INTERNIST Edward B. Breitschwerdt, DVM, DACVIM Chief Scientific Officer, Galaxy Diagnostics, Inc. Professor, Internal Medicine, NCSU, Raleigh, NC Adjunct Professor of Medicine, Duke University Medical Center INTRODUCTION Bartonella species are fastidious gram-negative bacteria that are highly adapted to a mammalian reservoir host and within which the bacteria usually cause a long-lasting intraerythrocytic bacteremia.1-3 These facts are of particular importance to veterinarians and physicians, as an increasing number of animal reservoir hosts have been identified for various Bartonella species. Among numerous other examples, Bartonella henselae has co-evolved with cats, Bartonella vinsonii subsp. berkhoffii has co-evolved with dogs and wild canines, and Bartonella bovis has co-evolved with cattle.1-2 Importantly, the list of reservoir-adapted Bartonella species, including a large number of rodent species that might serve as “pocket pets,” continues to grow exponentially, as new Bartonella spp. are discovered. Prior to 1990, there were only two named Bartonella species, whereas there are now at least 24 named and numerous unnamed or candidatus species, based upon deposited Gen Bank sequences or preliminary reports, respectively, seventeen Bartonella spp. including B. alsatica, B. bacilliformis, B. clarridgeiae, B. doshiae, B. elizabethae, B. grahamii, B. henselae (Houston 1 and San Antonio 2 strains), B. koehlerae, B. melophagi, B. quintana, B. rochalimaea, B. tamiae, B. vinsonii subsp. berkhoffii (Genotypes I, II and III), and B. washoensis have been associated with an expanding spectrum of human diseases. Epidemiological evidence and experimental flea transmission studies support an important role for fleas in the transmission of B.
    [Show full text]
  • In Search of a Bacterial Spedes Definition
    Rev. Biol. Trop.,45(2): 753-771,1997 SPECIAL PAPER In search of a bacterial spedes definition EdgardoMoreno Programa de Investigación en Enfermedades Tropicales (PIET), Escuela de Medicina Veterinaria,Universidad Nacional, Heredia,Costa Rica. Fax: (506) 2381298,E-mail: [email protected] (Received14-IV-1996. Corrected 9-X-1996. Accepted30-X-1996.) Abstraet: The bacterial species concept was ¡;¡xamined within the framework of plant and animal associated a-2 proteobacteria,taking into consideration the phylogenetic, taxonomic and biological approaches as well as the microbiologists' perception. The virtue of the phylogenetic approach is that it gi.ves an evolutionary perspective of the bacterial lineage; however the methods used possess low resolution for defining species located at the terminal branches of lhe phylogenetic trees. The merit of the taxonomic approach.is that species are defined on the basis of multiple characteristicS allowing high resolution at the terminal branches of dendograms; its disadvantage is the inaccuracy in the earliet nodes. Onan individual level, the qualitative biological characteristics used for the definition of species frequently reveal shortcomings because many of these properties are the result of coevolution, parallel evolution or the horizontal transfer of genes. Nevertheless, when considered together with the phylogenetic and taxonomic approaches,important uncertainties are discovered: these must be weighed if a practical definition of bacterial species is conceived. The microbiologi.sts' perception is thecriterion expressed by a group of sponsors who, basedon scientific and practical grounds, propose a new bacterial species. The success of this new .proposal is measured by its widespread acceptance and itspermanence. A difficult pr(jblem con cerned with definingbacterial species is how to distinguishif tbey are independent evolutionary units or if they are reticulateevolutionary units.
    [Show full text]
  • Dogs and Bartonella Evelyn E
    NATIONAL VETERINARY LABORATORY P.O. Box 239, 1Tice Road Franklin Lakes, NJ 07417 877-NVL-LABS (877-685-5227) www.natvetlab.com NEWSLETTER Dogs and Bartonella Evelyn E. Zuckerman, Editor Summer 2007 Vol. 6, Number 3 In This Issue: dogs kept outdoors are more likely to be exposed Table 1 The Summer 2007 issue of the NVL Newsletter to ticks than dogs kept indoors most of the time. Geographic Occurrence of Bartonella in Dogs is the first of several Newsletters that will give an Geographic Area Percent overview of Bartonella infection in healthy and Western Blot Bartonella Test: Infected sick dogs. This is especially relevant as summer As with cats, we utilize the WB technique for New Jersey- NVL 4% is the height of the tick and flea season in many serologic testing of dogs for Bartonella infection North Carolina/Virginia 3.6% parts of the country. Subsequent Newsletters will (Figure 1). The WB technique is more specific Southeast- US Healthy 10% cover canine Bartonella testing and diseases in and more sensitive than IFA or ELISA tests and Sick 27% more detail. is used as the confirmatory serological method Southwest- US Army Dogs 9% for many pathogen serologic assays. California 3% Dogs Israel 10% Figure 1 Background: We have tested 3,665 dogs for Bartonella infection by western immunoblot (WB) (Figures 1 & 2, Tables 2 & 3). Table 2 NVL Occurrence of Bartonella in Dogs Number Number % Status Tested Positive Positive Healthy 802 58 7% Western Immunoblot of a seropositive dog showing 1) No RFs** 641 31 5% Dogs cannot relax when it comes to Bartonella.
    [Show full text]
  • Bartonella Associated Cutaneous Lesions (BACL) in People with Neuropsychiatric Symptoms
    pathogens Article Bartonella Associated Cutaneous Lesions (BACL) in People with Neuropsychiatric Symptoms Edward B. Breitschwerdt 1,* , Julie M. Bradley 1, Ricardo G. Maggi 1 , Erin Lashnits 1 and Paul Reicherter 2 1 Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA; [email protected] (J.M.B.); [email protected] (R.G.M.); [email protected] (E.L.) 2 Dermatology Clinic, Truman Medical Center, University of Missouri Kansas City, Kansas City, MO 64108, USA; [email protected] * Correspondence: [email protected]; Tel.: +1-919-513-8277; Fax: +1-919-513-6464 Received: 29 October 2020; Accepted: 30 November 2020; Published: 4 December 2020 Abstract: Bartonella species are globally important emerging pathogens that were not known to infect animals or humans in North America prior to the human immunodeficiency virus (HIV) epidemic. Ongoing improvements in diagnostic testing modalities have allowed for the discovery of Bartonella species (spp.) DNA in blood; cerebrospinal fluid; and the skin of patients with cutaneous lesions, fatigue, myalgia, and neurological symptoms. We describe Bartonella spp. test results for participants reporting neuropsychiatric symptoms, the majority of whom reported the concurrent development of cutaneous lesions. Study participants completed a medical history, a risk factor questionnaire, and provided cutaneous lesion photographs. Bartonella spp. serology and Bartonella alpha proteobacteria enrichment blood culture/PCR were assessed. Within a 14-month period, 33 participants enrolled; 29/33 had serological and/or PCR evidence supporting Bartonella spp. infection, of whom 24 reported concurrent cutaneous lesions since neuropsychiatric symptom onset. Weconclude that cutaneous lesions were common among people reporting neuropsychiatric symptoms and Bartonella spp.
    [Show full text]
  • Cat Scratch Disease, Which Is Most Infections Often a Relatively Benign and Self-Limiting Illness
    Cat Scratch Importance Members of the genus Bartonella are maintained in many domesticated and wild Disease and Other animal hosts. Bartonella henselae, the best understood species, infects housecats and other members of the Felidae. Additional species of Bartonella are found in cats, Zoonotic Bartonella dogs, livestock, rodents, rabbits and other wild and domesticated animals. In immunocompetent humans, B. henselae causes cat scratch disease, which is most Infections often a relatively benign and self-limiting illness. In contrast, B. henselae infections are often severe in immunocompromised individuals, and can be fatal without Bartonellosis, antibiotic treatment. Other species of Bartonella have also been linked occasionally to Cat Scratch Fever, Benign human illnesses, with varying levels of evidence for a causative role. The significance Inoculation Lymphoreticulosis, of Bartonella spp. as pathogens for animals is currently unclear. The vast majority of Benign Inoculation Reticulosis, infections are asymptomatic, and although these organisms have been implicated Regional Granulomatous occasionally in illnesses, proving a causative role is difficult. Lymphadenitis, Parinaud Etiology Oculoglandular Syndrome, Bartonella spp. are fastidious, pleomorphic, Gram negative rods in the family Bacillary Angiomatosis Bartonellaceae, α-2 subgroup of the Proteobacteria. More than 20 species of Bartonella have been described in animals. B. henselae (formerly Rochalimaea henselae) is the major agent of cat scratch disease, and a causative agent for bacillary Last Updated: July 2012 angiomatosis, peliosis hepatis and possibly other conditions. There is some evidence that genotypes or strains of B. henselae might vary in their zoonotic potential. Other Bartonella species suggested to be pathogens in people and/or animals include B. clarridgeiae, B.
    [Show full text]
  • 9Th International Conference on Bartonella As Emerging Pathogens
    9th International Conference on BARTONELLA AS EMERGING PATHOGENS 2019 september 18-19-20 National Veterinary School of Alfort - Paris - Our sponsors : 9th International Conference on Bartonnella as Emerging Pathogens • • • Genomic diversity and coinfection of 26 bartonella species in rodents SUMMARY Bartonella across the ring of fire: 28 Bartonella in dogs and their fleas from Chile, Mexico and the Philippines 4 PROGRAM Validation of Bartonella henselae 30 Western Immunoblotting for 9 Presentations Serodiagnosis of Bartonellosis in Dogs 10 Molecular adaptation of Bartonella quintana to its human and louse niches 31 Molecular detection of Bartonella spp. in American mink (Neovison vison) 11 Development of a Murine Model to Study from Southern Chile Human Bartonellosis Phylogenetic reconstruction of long- 12 In silico analysis of the antigenic region of 32 distance movements of bartonella Pap31 from Bartonella bacilliformis bacteria by rats and bats Molecular diagnosis of cat scratch Pathobiome of blood and complex 14 disease: comparison of different clinical 34 disease expression: lessons from specimens and PCR assays bartonellosis and other vector borne infections 16 Evolutionary and structure-function analysis of Bartonella effector proteins 36 Time to take Bartonellosis seriously in India Analysing the fibronectin binding domain 17 of the Bartonella henselae adhesin A 37 Clinical findings and diagnosis of human bartonellosis in Tunisia BepD mediates the switch from pro- to 18 anti-inflammatory signaling by JAK- 38 A novel perspective
    [Show full text]