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https://www.readbyqxmd.com/read/28528880/lyme-borreliae-prevalence-and-genospecies-distribution-in-ticks-removed-from-humans
#1
Patrick Waindok, Sabine Schicht, Volker Fingerle, Christina Strube
Lyme borreliosis (LB) is the most important human tick-borne disease, but Borrelia genospecies cause different clinical manifestations. Ticks of the genus Ixodes removed from humans between 2006 and 2012 were analysed for Borrelia burgdorferi sensu lato (sl) infections. The majority of ticks originated from the Greater Hanover region in Northern Germany. The engorgement status varied over the entire spectrum from unengorged (no evidence of started blood feeding) to fully engorged. In the present study, prevalence data for B...
May 13, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28526093/canine-infection-with-borrelia-burgdorferi-dirofilaria-immitis-anaplasma-spp-and-ehrlichia-spp-in-canada-2013-2014
#2
Brian H Herrin, Andrew S Peregrine, Jonas Goring, Melissa J Beall, Susan E Little
BACKGROUND: Canine test results generated by veterinarians throughout Canada from 2013-2014 were evaluated to assess the geographical distribution of canine infection with Borrelia burgdorferi, Dirofilaria immitis, Ehrlichia spp., and Anaplasma spp. METHODS: The percent positive test results of 115,636 SNAP® 4Dx® Plus tests from dogs tested were collated by province and municipality to determine the distribution of these vector-borne infections in Canada. RESULTS: A total of 2,844/115,636 (2...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28520981/clinical-presentation-and-outcomes-of-children-with-human-granulocytic-anaplasmosis
#3
Anna M Schotthoefer, Matthew C Hall, Satya Vittala, Raza Bajwa, Holly M Frost
Background.: Adults with the tick-borne disease human granulocytic anaplasmosis (HGA) have a spectrum of acute febrile illnesses that, if untreated, might be severe. Clinical presentation and outcomes of children with HGA have been poorly described. Methods.: A retrospective analysis was conducted to determine the frequency, presentation, and outcomes of pediatric patients with HGA between 1994 and 2015 in a region of Wisconsin in which HGA is highly endemic. Patients with related International Classification of Diseases Ninth and Tenth Revision (ICD-9 and ICD-10, respectively) codes or positive HGA laboratory test results were evaluated and classified as having had confirmed, probable, or suspected HGA on the basis of the Centers for Disease Control and Prevention (CDC) case definition...
May 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28518080/rearing-ixodes-scapularis-the-black-legged-tick-feeding-immature-stages-on-mice
#4
Andrew B Nuss, Manoj G Mathew, Monika Gulia-Nuss
Ixodes scapularis, the vector of Lyme disease, is one of the most important disease vectors in the eastern and Midwestern United States. This species is a three host tick that requires a blood meal from a vertebrate host for each development stage, and the adult females require a blood meal for reproduction. Larval ticks attach to their host for 3 - 5 days for feeding and drop off the host when fully engorged. This dependency on several different hosts and the lengthy attachment time for engorgement complicates tick rearing in the laboratory setting...
May 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28518034/relative-risk-for-ehrlichiosis-and-lyme-disease-in-an-area-where-vectors-for-both-are-sympatric-new-jersey-usa
#5
Andrea Egizi, Nina H Fefferman, Robert A Jordan
No abstract text is available yet for this article.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28512589/a-case-of-early-disseminated-neurological-lyme-disease-followed-by-atypical-cutaneous-manifestations
#6
Vamsi Kantamaneni, Vikas Sunder, Mohammad Bilal, Scott Vargo
Lyme disease (LD) is a tick-borne illness caused by Borrelia burgdorferi sensu stricto. An 80-year-old female from Pennsylvania, USA, presented to an outside hospital with fever, confusion, lower extremity weakness, and stool incontinence. CT head and MRI spine were unremarkable. An infectious work-up including lumbar puncture was negative. She was transferred to our tertiary care hospital. Patient was noted to have mild unilateral right-sided facial droop and a diffuse macular rash throughout the body. She denied any outdoor activities, tick bites, or previous rash...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28501998/western-blot-techniques
#7
Brianna Kim
The Western blot is an important laboratory technique that allows for specific identification and characterization of proteins. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE)-separated proteins are electophoretically transferred to a polyvinylidene fluoride (PVDF) membrane which is then incubated with specific antibodies, then developed to show the protein of interest. Here, we describe the transfer and detection of Outer surface protein A (OspA), a protein only found on the surface of Borrelia burgdorferi, the bacteria responsible for Lyme disease...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28488932/powassan-deer-tick-virus-and-borrelia-burgdorferi-infection-in-wisconsin-tick-populations
#8
Konstance K Knox, Angela M Thomm, Yvette A Harrington, Ellen Ketter, Jacob M Patitucci, Donald R Carrigan
Powassan/Deer Tick Virus (POWV/DTV) is an emerging cause of arboviral neuroinvasive disease in the upper Midwest. These studies describe the prevalence and geographic distribution of Wisconsin ticks carrying POWV/DTV as well as the high frequency of Ixodes scapularis ticks coinfected with both POWV/DTV and Borrelia burgdorferi, the causative agent of Lyme disease. These findings suggest that concurrent transmission of POWV/DTV and B. Burgdorferi from coinfected ticks is likely to occur in humans.
May 10, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28487229/every-member-of-the-kingdom-animalia-is-a-potential-vector-of-human-pathogens
#9
LETTER
Seema Patel
Zoonotic diseases are a subset of infectious diseases, which account for enormous morbidity and mortality. Pathologies like malaria, rabies, Lyme disease, leptospirosis, avian flu etc. are microbe- and parasite-caused ailments, where the etiological agents are introduced into or on the human body via ticks, mosquitoes, birds, rodents, bats, and deer, among other members of kingdom Animalia. While some of the zoonotic diseases are well-investigated and caution taken against, a lot many are yet to be recognized...
May 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28484210/identification-of-tp0751-pallilysin-as-a-treponema-pallidum-vascular-adhesin-by-heterologous-expression-in-the-lyme-disease-spirochete
#10
Wei-Chien Andrew Kao, Helena Pětrošová, Rhodaba Ebady, Karen V Lithgow, Pablo Rojas, Yang Zhang, Yae-Eun Kim, Yae-Ram Kim, Tanya Odisho, Nupur Gupta, Annette Moter, Caroline E Cameron, Tara J Moriarty
Treponema pallidum subsp. pallidum, the causative agent of syphilis, is a highly invasive spirochete pathogen that uses the vasculature to disseminate throughout the body. Identification of bacterial factors promoting dissemination is crucial for syphilis vaccine development. An important step in dissemination is bacterial adhesion to blood vessel surfaces, a process mediated by bacterial proteins that can withstand forces imposed on adhesive bonds by blood flow (vascular adhesins). The study of T. pallidum vascular adhesins is hindered by the uncultivable nature of this pathogen...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28484042/a-proteomic-signature-of-dormancy-in-an-actinobacterium-micrococcus-luteus
#11
Sujina Mali, Morgan Mitchell, Spencer Havis, Abiodun Bodunrin, Jonathan Rangel, Gabriella Olson, William R Widger, Steven J Bark
Dormancy is a protective state where diverse bacteria including M. tuberculosis, S. aureus, T. pallidum (syphilis), and B. burgdorferi (Lyme Disease) curtail metabolic activity to survive external stresses including antibiotics. Evidence suggests dormancy consists of a continuum of interrelated states including viable but nonculturable (VBNC) and persistence states. VBNC and persistence contribute to antibiotic tolerance, reemergence from latent infections, and even quorum sensing and biofilm formation. Previous studies indicate that the protein mechanisms regulating persistence and VBNC states are not well understood...
May 8, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28482848/when-a-patient-suspected-with-juvenile-idiopathic-arthritis-turns-out-to-be-diagnosed-with-an-infectious-disease-a-review-of-lyme-arthritis-in-children
#12
REVIEW
Krzysztof Orczyk, Joanna Świdrowska-Jaros, Elżbieta Smolewska
The Lyme arthritis is a common manifestation of infection with Borrelia burgdorferi spirochete. Despite its infectious background, the inflammation clinically and histopatologically resembles juvenile idiopathic arthritis. As it affects a considerable number of Lyme disease patients, it should be routinely considered in differential diagnosis. Development of arthritis is partially dependent on spirochetal factors, including the ribosomal spacer type and the sequence of outer surface protein C. Immunological background involves Th1-related response, but IL-17 provides an additional route of developing arthritis...
May 8, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28480261/geographic-expansion-of-lyme-disease-in-michigan-2000-2014
#13
Paul M Lantos, Jean Tsao, Lise E Nigrovic, Paul G Auwaerter, Vance G Fowler, Felicia Ruffin, Erik Foster, Graham Hickling
BACKGROUND: Most Lyme disease cases in the Midwestern United States are reported in Minnesota and Wisconsin. In recent years, however, a widening geographic extent of Lyme disease has been noted with evidence of expansion eastwards into Michigan and neighboring states with historically low incidence rates. METHODS: We collected confirmed and probable cases of Lyme disease from 2000 through 2014 from the Michigan Department of Health and Human Services, entering them in a geographic information system...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28479174/identification-of-a-defined-linear-epitope-in-the-ospa-protein-of-the-lyme-disease-spirochetes-that-elicits-bactericidal-antibody-responses-implications-for-vaccine-development
#14
Jerilyn R Izac, Lee D Oliver, Christopher G Earnhart, Richard T Marconi
The lipoprotein OspA is produced by the Lyme disease spirochetes primarily in unfed ticks. OspA production is down-regulated by the blood meal and it is not produced in mammals except for possible transient production during late stage infection in patients with Lyme arthritis. Vaccination with OspA elicits antibody (Ab) that can target spirochetes in the tick midgut during feeding and inhibit transmission to mammals. OspA was the primary component of the human LYMErix™ vaccine. LYMErix™ was available from 1998 to 2002 but then pulled from the market due to declining sales as a result of unsubstantiated concerns about vaccination induced adverse events and poor efficacy...
May 31, 2017: Vaccine
https://www.readbyqxmd.com/read/28476293/-usefulness-of-serological-studies-for-the-early-diagnosis-of-lyme-disease-in-primary-health-care-centres
#15
María Esther Vázquez-López, Gonzalo Fernández, Pablo Díaz, Carolina Díez-Morrondo, Robustiano Pego-Reigosa, Amparo Coira-Nieto
OBJECTIVE: The main aim of this study was to determine the usefulness of an early diagnosis of Lyme disease (LD) in Primary Health Care Centres (PHCC) using the ELISA test as serological screening technique. METHODS: A retrospective study (2006-2013) was performed in order to determine the anti-Borrelia seropositivity in 2,842 people at risk of having LD. The possible relationship between the environment and the area of residence with anti-Borrelia seropositivity was also studied according to the origin of the specimens (PHCC/Hospital)...
May 2, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28473966/investigation-of-ospc-expression-variation-among-borrelia-burgdorferi-strains
#16
Xuwu Xiang, Youyun Yang, Jimei Du, Tianyu Lin, Tong Chen, X Frank Yang, Yongliang Lou
Outer surface protein C (OspC) is the most studied major virulence factor of Borrelia burgdorferi, the causative agent of Lyme disease. The level of OspC varies dramatically among B. burgdorferi strains when cultured in vitro, but little is known about what causes such variation. It has been proposed that the difference in endogenous plasmid contents among strains contribute to variation in OspC phenotype, as B. burgdorferi contains more than 21 endogenous linear (lp) and circular plasmids (cp), and some of which are prone to be lost...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28473801/cerebrovascular-manifestations-of-lyme-neuroborreliosis-a-systematic-review-of-published-cases
#17
REVIEW
Adam Garkowski, Joanna Zajkowska, Agata Zajkowska, Alina Kułakowska, Olga Zajkowska, Bożena Kubas, Dorota Jurgilewicz, Marcin Hładuński, Urszula Łebkowska
BACKGROUND: Lyme neuroborreliosis (LNB) is a disease caused by spirochete Borrelia burgdorferi, involving the nervous system. It usually manifests as lymphocytic meningoradiculitis, but in rare cases, it can also lead to cerebrovascular complications. We aimed to perform a systematic review of all reported cases of LNB complicated by central nervous system vasculitis and stroke or transient ischemic attack (TIA). MATERIALS AND METHODS: We conducted a systematic review of literature between May 1987 and December 2016 with patients who presented with cerebrovascular course of LNB...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28472096/a-bayesian-spatio-temporal-model-for-forecasting-the-prevalence-of-antibodies-to-borrelia-burgdorferi-causative-agent-of-lyme-disease-in-domestic-dogs-within-the-contiguous-united-states
#18
Stella C Watson, Yan Liu, Robert B Lund, Jenna R Gettings, Shila K Nordone, Christopher S McMahan, Michael J Yabsley
This paper models the prevalence of antibodies to Borrelia burgdorferi in domestic dogs in the United States using climate, geographic, and societal factors. We then use this model to forecast the prevalence of antibodies to B. burgdorferi in dogs for 2016. The data available for this study consists of 11,937,925 B. burgdorferi serologic test results collected at the county level within the 48 contiguous United States from 2011-2015. Using the serologic data, a baseline B. burgdorferi antibody prevalence map was constructed through the use of spatial smoothing techniques after temporal aggregation; i...
2017: PloS One
https://www.readbyqxmd.com/read/28470440/-fifteen%C3%A2-years-of-the-histopathological-synovitis-score-review-and-further-developments-of%C3%A2-a%C3%A2-diagnostic-score
#19
REVIEW
V Krenn, G Perino, W Rüther, V T Krenn, M Huber, T Hügle, A Najm, S Müller, F Boettner, F Pessler, W Waldstein, J Kriegsmann, T Häupl, S Wienert, M G Krukemeyer, S Sesselmann, R Tikhilov, L Morawietz
The histopathological synovitis score evaluates in a graded approach, as is largely usual for diagnostic histopathological scores, the immunological and inflammatory changes caused by synovitis. A synovitis score of between 1 and ≤ 4 is classified as low-grade (osteoarthritis-related synovitis, post-traumatic synovitis, meniscopathy-related synovitis and synovitis in hemochromatosis). Synovitis scores of between ≥ 5 and 9 are classified as high-grade synovitis (rheumatoid arthritis, psoriatic arthritis, Lyme's arthritis, post-infection/reactive arthritis and peripheral arthritis in Bechterew disease); sensitivity is 61...
May 3, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28470015/econsultations-to-infectious-disease-specialists-questions-asked-and-impact-on-primary-care-providers-behavior
#20
Ruchi Murthy, Gregory Rose, Clare Liddy, Amir Afkham, Erin Keely
BACKGROUND: Since 2010, the Champlain BASE (Building Access to Specialist Advice through eConsultation) has allowed primary care providers (PCPs) to submit clinical questions to specialists through a secure web service. The study objectives are to describe questions asked to Infectious Diseases specialists through eConsultation and assess impact on physician behaviors. METHODS: eConsults completed through the Champlain BASE service from April 15, 2013 to January 29, 2015 were characterized by the type of question asked and infectious disease content...
2017: Open Forum Infectious Diseases
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