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https://www.readbyqxmd.com/read/28887186/to-test-or-not-to-test-laboratory-support-for-the-diagnosis-of-lyme-borreliosis
#1
REVIEW
Ram B Dessau, Alje P van Dam, Volker Fingerle, Jeremy Gray, Joppe Hovius, Klaus-Peter Hunfeld, Benoit Jaulhac, Olaf Kahl, Wolfgang Kristoferitsch, Per-Eric Lindgren, Mateusz Markowicz, Sally Mavin, Katharina Ornstein, Tobias Rupprecht, Gerold Stanek, Franc Strle
BACKGROUND: Lyme borreliosis (LB) is a tick-borne infection caused by Borrelia burgdorferi sensu lato. The most frequent clinical manifestations are erythema migrans and Lyme neuroborreliosis. Currently, a large volume of diagnostic testing for Lyme borreliosis is reported, whereas the incidence of clinically relevant disease manifestations is low. This indicates overuse of diagnostic testing for LB with implications for patient care and cost effective health management. AIM: The recommendations provided in this review are intended to support both the clinical diagnosis and initiatives for a more rational use of laboratory testing in patients with clinically suspected Lyme borreliosis...
September 5, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28874197/environmental-drivers-of-ixodes-ricinus-abundance-in-forest-fragments-of-rural-european-landscapes
#2
Steffen Ehrmann, Jaan Liira, Stefanie Gärtner, Karin Hansen, Jörg Brunet, Sara A O Cousins, Marc Deconchat, Guillaume Decocq, Pieter De Frenne, Pallieter De Smedt, Martin Diekmann, Emilie Gallet-Moron, Annette Kolb, Jonathan Lenoir, Jessica Lindgren, Tobias Naaf, Taavi Paal, Alicia Valdés, Kris Verheyen, Monika Wulf, Michael Scherer-Lorenzen
BACKGROUND: The castor bean tick (Ixodes ricinus) transmits infectious diseases such as Lyme borreliosis, which constitutes an important ecosystem disservice. Despite many local studies, a comprehensive understanding of the key drivers of tick abundance at the continental scale is still lacking. We analyze a large set of environmental factors as potential drivers of I. ricinus abundance. Our multi-scale study was carried out in deciduous forest fragments dispersed within two contrasting rural landscapes of eight regions, along a macroclimatic gradient stretching from southern France to central Sweden and Estonia...
September 6, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28869190/year-to-year-variation-in-the-density-of-ixodes-ricinus-ticks-and-the-prevalence-of-the-rodent-associated-human-pathogens-borrelia-afzelii-and-b-miyamotoi-in-different-forest-types
#3
Sanne C Ruyts, Wesley Tack, Evy Ampoorter, Elena C Coipan, Erik Matthysen, Dieter Heylen, Hein Sprong, Kris Verheyen
The human pathogens Borrelia afzelii, which causes Lyme borreliosis and B. miyamotoi, which causes relapsing fever, both circulate between Ixodes ricinus ticks and rodents. The spatiotemporal dynamics in the prevalence of these pathogens have not yet been fully elucidated, but probably depend on the spatiotemporal population dynamics of small rodents. We aimed to evaluate the effect of different forest types on the density of infected nymphs in different years and to obtain more knowledge about the spatial and temporal patterns of ticks and tick-borne pathogens...
August 26, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28863166/the-novel-lyme-borreliosis-vaccine-vla15-shows-broad-protection-against-borrelia-species-expressing-six-different-ospa-serotypes
#4
Pär Comstedt, Wolfgang Schüler, Andreas Meinke, Urban Lundberg
We have previously shown that the Outer surface protein A (OspA) based Lyme borreliosis vaccine VLA15 induces protective immunity in mice. Herein, we report the induction of protective immunity by VLA15 with mouse models using ticks infected with B. burgdorferi (OspA serotype 1), B. afzelii (OspA serotype 2) and B. bavariensis (OspA serotype 4) or with in vitro grown B. garinii (OspA serotype 5 and 6) for challenge. For B. garinii (OspA serotype 3), we have developed a growth inhibition assay using chicken complement and functional antibodies targeting B...
2017: PloS One
https://www.readbyqxmd.com/read/28854805/two-mice-models-for-transferability-of-zoonotic-bacteria-via-tick-vector
#5
B Sallay, T Vaculová, M Derdáková, V Rusňáková Tarageľová, E Špitalská, Ľ Škultéty
Spotted fever and typhus-related diseases caused by rickettsiae, Lyme borreliosis induced by spirochetes from Borrelia burgdorferii sensu lato complex, and Q fever evoked by Coxiella burnetii, are important zoonoses occurring worldwide. In order to study the pathogenesis of these infections, the efficacy of vaccines from the perspective of protection against the pathogens, pathogen - pathogen interactions during co-infections or pathogen-vector-host interrelationship, a suitable animal model should be established...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28846709/infection-of-ixodes-ricinus-by-borrelia-burgdorferi-sensu-lato-in-peri-urban-forests-of-france
#6
Axelle Marchant, Alain Le Coupanec, Claire Joly, Emeline Perthame, Natacha Sertour, Martine Garnier, Vincent Godard, Elisabeth Ferquel, Valerie Choumet
Lyme borreliosis is the most common tick-borne disease in the northern hemisphere. In Europe, it is transmitted by Ixodes ticks that carry bacteria belonging to the Borrelia burgdorferi sensu lato complex. The objective of this work was to explore eco-epidemiological factors of Lyme borreliosis in peri-urban forests of France (Sénart, Notre-Dame and Rambouillet). We investigated whether the introduction of Tamias sibiricus in Sénart could alter the density of infected ticks. Moreover, the density and tick infection were investigated according to the tree species found in various patches of Sénart forest...
2017: PloS One
https://www.readbyqxmd.com/read/28843481/prevalence-of-borrelia-miyamotoi-and-borrelia-burgdorferi-sensu-lato-in-questing-ticks-from-a-recreational-coniferous-forest-of-east-saxony-germany
#7
Sándor Szekeres, Jenny Lügner, Volker Fingerle, Gabriele Margos, Gábor Földvári
The hard tick Ixodes ricinus is the most important vector of tick-transmitted pathogens in Europe, frequently occurring in urban parks and greenbelts utilized for recreational activities. This species is the most common vector of the causative agents of Lyme borreliosis in Europe. Similarly, the species spreads Borrelia miyamotoi, causing a relapsing-fever like illness. A total of 1774 Ixodes ricinus (50 females, 68 males, 840 nymphs and 818 larvae) were collected with flagging between March and September 2014 in a coniferous forest patch in Niederkaina near the town of Bautzen in Saxony, Germany...
August 18, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28794875/the-humtick-study-protocol-for-a-prospective-cohort-study-on-post-treatment-lyme-disease-syndrome-and-the-disease-and-cost-burden-of-lyme-borreliosis-in-belgium
#8
Laurence Geebelen, Tinne Lernout, Benoît Kabamba-Mukadi, Veroniek Saegeman, Hein Sprong, Steven Van Gucht, Philippe Beutels, Niko Speybroeck, Katrien Tersago
BACKGROUND: In Belgium, different routine surveillance systems are in place to follow-up Lyme borreliosis trends. However, accurate data on the disease and monetary burden for the different clinical manifestations are lacking. Despite recommended antibiotic treatment, a proportion of Lyme patients report persisting aspecific symptoms for six months or more (e.g. fatigue, widespread musculoskeletal pain, cognitive difficulties), a syndrome now named "post-treatment Lyme disease syndrome" (PTLDS)...
2017: Archives of Public Health, Archives Belges de Santé Publique
https://www.readbyqxmd.com/read/28777206/lyme-borreliosis-in-children-a-tertiary-referral-hospital-based-retrospective-analysis
#9
Amara Nassar-Sheikh Rashid, Michael Boele van Hensbroek, Marion Kolader, Joppe W Hovius, Dasja Pajkrt
BACKGROUND: Lyme borreliosis (LB) is an endemic disease in adults in Western countries. Although children may also be infected, paediatric studies on LB are scarce. This study aims to estimate the incidence of LB among children with a clinical suspicion for Lyme in a tertiary referral center in the Netherlands. METHODS: Patient chart data on medical history, clinical signs and symptoms, diagnostic test results and diagnoses were collected using standardized case record forms...
August 1, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28770818/correction-lyme-borreliosis
#10
Allen C Steere, Strle Franc, Gary P Wormser, Linden T Hu, John A Branda, Joppe W R Hovius, Xin Li, Paul S Mead
This corrects the article DOI: 10.1038/nrdp.2016.90.
August 3, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28748396/disagreement-between-the-results-from-three-commercial-tests-for-the-detection-of-borrelia-specific-serum-antibodies-in-the-netherlands-associated-with-antibiotic-treatment-for-lyme-borreliosis-a-retrospective-study
#11
T van Gorkom, K Kremer, W Voet, D W Notermans, B J M Vlaminckx, S U C Sankatsing, S F T Thijsen
The diagnosis of Lyme borreliosis is challenging because of the often non-specific symptoms and persisting antibodies after infection. We investigated the diagnostic characteristics of two enzyme-linked immunosorbent assays (ELISAs) and an immunoblot for the detection of Borrelia-specific serum antibodies using different test strategies in individuals with and without antibiotic treatment for Lyme borreliosis. This retrospective study included healthy individuals, patients with active Lyme neuroborreliosis and patients treated for Lyme neuroborreliosis...
July 26, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28742149/predicting-the-risk-of-lyme-borreliosis-after-a-tick-bite-using-a-structural-equation-model
#12
Agnetha Hofhuis, Jan van de Kassteele, Hein Sprong, Cees C van den Wijngaard, Margriet G Harms, Manoj Fonville, Arieke Docters van Leeuwen, Mariana Simões, Wilfrid van Pelt
BACKGROUND: Understanding and quantification of the risk of Lyme borreliosis after a tick bite can aid development of prevention strategies against Lyme borreliosis. METHODS: We used 3,525 single tick bite reports from three large prospective studies on the transmission risk of tick-borne pathogens to humans, with 50 reports of Lyme borreliosis during the follow-up period, among 1,973 reports with known outcome. A structural equation model was applied to estimate the risk of Lyme borreliosis after a tick bite, and quantify the influence of: developmental stage of the tick, detection of Borrelia burgdorferi s...
2017: PloS One
https://www.readbyqxmd.com/read/28735651/the-effect-of-artesunate-on-short-term-memory-in-lyme-borreliosis
#13
B K Puri, J S Hakkarainen-Smith, J A Monro
Lyme borreliosis is associated with memory deficits. While this may be related to cerebral infection by Borrelia bacteria, it may also be caused by concomitant co-infection by Babesia protozoa. The anti-malarial artemisinin-derivative artesunate has been shown to be effective against a number of Babesia species and to have efficacy against human cerebral malaria. We hypothesised that concomitant administration of artesunate in Lyme borreliosis patients would help alleviate the severity of self-reported short-term memory impairment...
August 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28726624/lyme-borreliosis-in-finland-1995-2014
#14
Eeva Sajanti, Mikko Virtanen, Otto Helve, Markku Kuusi, Outi Lyytikäinen, Jukka Hytönen, Jussi Sane
We investigated the epidemiology of Lyme borreliosis (LB) in Finland for the period 1995-2014 by using data from 3 different healthcare registers. We reviewed data on disseminated LB cases from the National Infectious Diseases Register (21,051 cases) and the National Hospital Discharge Register (10,402 cases) and data on primary LB (erythema migrans) cases from the Register for Primary Health Care Visits (11,793 cases). Incidence of microbiologically confirmed disseminated LB cases increased from 7/100,000 population in 1995 to 31/100,000 in 2014...
August 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28714333/-borrelia-miyamotoi-a-recently-identified-human-pathogenic-tick-borne-relapsing-fever-spirochete
#15
REVIEW
Sándor Szekeres, András Lakos, Gábor Földvári
Borrelia miyamotoi is a recently described relapsing fever spirochete transmitted by ticks of the Ixodes ricinus complex. This pathogen is different from Borrelia burgdorferi sensu lato (the Lyme borreliosis spirochetes) in its epidemiology, ecology and also genetics. Over 50 patients have been described worldwide with Borrelia miyamotoi disease, and three immunocompromised patients were reported with neurological symptoms. Our knowledge about Borrelia miyamotoi infection in ticks and its distribution in different habitats and also the mechanism of the infection is limited...
July 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28705983/completed-genome-sequences-of-borrelia-burgdorferi-sensu-stricto-b31-nrz-and-closely-related-patient-isolates-from-europe
#16
Gabriele Margos, Sabrina Hepner, Christoph Mang, Andreas Sing, Bernhard Liebl, Volker Fingerle
Borrelia burgdorferi sensu stricto is a causative agent of human Lyme borreliosis in the United States and Europe. We report here the completed genome sequences of strain B31 isolated from a tick in the United States and two closely related strains from Europe, PAli and PAbe, which were isolated from patients with erythema migrans and neuroborreliosis, respectively.
July 13, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28703098/surveillance-perspective-on-lyme-borreliosis-across-the-european-union-and-european-economic-area
#17
Cees C van den Wijngaard, Agnetha Hofhuis, Mariana Simões, Ente Rood, Wilfrid van Pelt, Herve Zeller, Wim Van Bortel
Lyme borreliosis (LB) is the most prevalent tick-borne disease in Europe. Erythema migrans (EM), an early, localised skin rash, is its most common presentation. Dissemination of the bacteria can lead to more severe manifestations including skin, neurological, cardiac, musculoskeletal and ocular manifestations. Comparison of LB incidence rates in the European Union (EU)/European Economic Area (EEA) and Balkan countries are difficult in the absence of standardised surveillance and reporting procedures. We explored six surveillance scenarios for LB surveillance in the EU/EEA, based on the following key indicators: (i) erythema migrans, (ii) neuroborreliosis, (iii) all human LB manifestations, (iv) seroprevalence, (v) tick bites, and (vi) infected ticks and reservoir hosts...
July 6, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28694446/ticks-infected-via-co-feeding-transmission-can-transmit-lyme-borreliosis-to-vertebrate-hosts
#18
Alessandro Belli, Anouk Sarr, Olivier Rais, Ryan O M Rego, Maarten J Voordouw
Vector-borne pathogens establish systemic infections in host tissues to maximize transmission to arthropod vectors. Co-feeding transmission occurs when the pathogen is transferred between infected and naive vectors that feed in close spatiotemporal proximity on a host that has not yet developed a systemic infection. Borrelia afzelii is a tick-borne spirochete bacterium that causes Lyme borreliosis (LB) and is capable of co-feeding transmission. Whether ticks that acquire LB pathogens via co-feeding are actually infectious to vertebrate hosts has never been tested...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28690096/modeling-the-effects-of-variable-feeding-patterns-of-larval-ticks-on-the-transmission-of-borrelia-lusitaniae-and-borrelia-afzelii
#19
Luca Ferreri, Silvia Perazzo, Ezio Venturino, Mario Giacobini, Luigi Bertolotti, Alessandro Mannelli
Spirochetes belonging to the Borrelia burgdoferi sensu lato (sl) group cause Lyme Borreliosis (LB), which is the most commonly reported vector-borne zoonosis in Europe. B. burgdorferi sl is maintained in nature in a complex cycle involving Ixodes ricinus ticks and several species of vertebrate hosts. The transmission dynamics of B. burgdorferi sl is complicated by the varying competence of animals for different genospecies of spirochetes that, in turn, vary in their capability of causing disease. In this study, a set of difference equations simplifying the complex interaction between vectors and their hosts (competent and not for Borrelia) is built to gain insights into conditions underlying the dominance of B...
August 2017: Theoretical Population Biology
https://www.readbyqxmd.com/read/28676442/a-biochip-based-combined-immunoassay-for-detection-of-serological-status-of-borrelia-burgdorferi-in-lyme-borreliosis
#20
Na-Li Huang, Lei Ye, Hui Lv, Yi-Xin Du, Marion Schneider, Li-Bin Fan, Wei-Dong Du
BACKGROUND: Dithiobis (succinimidyl undecanoate) modified gold surface biochip were used as a combined immunoassay platform for concurrently detecting immune responses to Borrelia burgdorferi (B. burgdorferi) sensu lato antigens, flagellin, outer surface protein C, variable major protein-like sequence proteins, and 3 VlsE protein IR6 peptides. The peptides represented intrinsic Borrelia genospecies: B. burgdorferi sensu stricto, B. garinii, and B. afzelii, respectively. METHODS: Fourier transform infrared spectroscopy was utilized to validate the surface chemical characteristics on the modified gold surface...
July 1, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
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