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https://www.readbyqxmd.com/read/28225145/significant-variations-in-the-seroprevalence-of-c6-elisa-antibodies-in-a-highly-endemic-area-for-lyme-borreliosis-evaluation-of-age-sex-and-seasonal-differences
#1
Marcus Johansson, Lena Manfredsson, Annika Wistedt, Lena Serrander, Ivar Tjernberg
The purpose of this study was to assess the seroprevalence of C6 ELISA antibodies in healthy blood donors in Kalmar County, Sweden, in relation to age, sex and time of year (peak season vs off season). In addition, we wanted to assess serological status over time in a group of C6 ELISA seropositive blood donors. Sera were collected from 273 (131 women, 142 men) blood donors in autumn 2011 and 300 (144 women, 156 men) in winter 2014. All sera were analysed in the C6 ELISA and the results were interpreted according to the manufacturer's instructions...
February 22, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28196664/new-records-of-ornithodoros-puertoricensis-fox-1947-ixodida-argasidae-parasitizing-humans-in-rural-and-urban-dwellings-panama
#2
Sergio E Bermúdez, Eduardo Castillo, Tyler D Pohlenz, Alexander Kneubehl, Aparna Krishnavajhala, Lillian Domínguez, Antonio Suárez, Job E López
The presence of ticks inside human constructions was evaluated in two localities from Colon province (Charco La Piedra and Espinar) and one from Panama province (Ancon, City of Panama). In two of houses, eight people from Charco La Piedra and one from Ancón reported "insect bites," which produced blisters for several weeks. The investigation resulted in the collection of argasid ticks, which were identified by morphology and sequencing the 16s ribosomal RNA gene, and later evaluated for the presence of relapsing fever Borrelia DNA...
February 5, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28179027/genome-scaffolding-and-annotation-for-the-pathogen-vector-ixodes-ricinus-by-ultra-long-single-molecule-sequencing
#3
Wibke J Cramaro, Oliver E Hunewald, Lesley Bell-Sakyi, Claude P Muller
BACKGROUND: Global warming and other ecological changes have facilitated the expansion of Ixodes ricinus tick populations. Ixodes ricinus is the most important carrier of vector-borne pathogens in Europe, transmitting viruses, protozoa and bacteria, in particular Borrelia burgdorferi (sensu lato), the causative agent of Lyme borreliosis, the most prevalent vector-borne disease in humans in the Northern hemisphere. To faster control this disease vector, a better understanding of the I...
February 8, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28174118/molecular-and-structural-characterization-of-novel-cystatins-from-the-taiga-tick-ixodes-persulcatus
#4
Carolina K Rangel, Luís F Parizi, Gabriela A Sabadin, Evenilton P Costa, Nelilma C Romeiro, Masayoshi Isezaki, Naftaly W Githaka, Adriana Seixas, Carlos Logullo, Satoru Konnai, Kazuhiko Ohashi, Itabajara da Silva Vaz
Cystatins are cysteine peptidase inhibitors that in ticks mediate processes such as blood feeding and digestion. The ixodid tick Ixodes persulcatus is endemic to the Eurasia, where it is the principal vector of Lyme borreliosis. To date, no I. persulcatus cystatin has been characterized. In the present work, we describe three novel cystatins from I. persulcatus, named JpIpcys2a, JpIpcys2b and JpIpcys2c. In addition, the potential of tick cystatins as cross-protective antigens was evaluated by vaccination of hamsters using BrBmcys2c, a cystatin from Rhipicephalus microplus, against I...
January 31, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28166734/chronic-lyme-borreliosis-associated-with-minimal-change-glomerular-disease-a-case-report
#5
N Florens, S Lemoine, F Guebre-Egziabher, F Valour, J Kanitakis, M Rabeyrin, L Juillard
BACKGROUND: There are only few cases of renal pathology induced by Lyme borreliosis in the literature, as this damage is rare and uncommon in humans. This patient is the first case of minimal change glomerular disease associated with chronic Lyme borreliosis. CASE PRESENTATION: A 65-year-old Caucasian woman was admitted for an acute edematous syndrome related to a nephrotic syndrome. Clinical examination revealed violaceous skin lesions of the right calf and the gluteal region that occurred 2 years ago...
February 6, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28153712/american-woman-with-early-lyme-borreliosis-diagnosed-in-a-colombian-hospital
#6
Yesid F Mantilla-Flórez, Álvaro A Faccini-Martínez, Carlos E Pérez-Díaz
No abstract text is available yet for this article.
January 31, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28141584/safety-immunogenicity-and-efficacy-of-borrelia-burgdorferi-outer-surface-protein-a-ospa-vaccine-a-meta-analysis
#7
Hua Zhao, Fukai Frank Bao, Aihua Liu
INTRODUCTION: Lyme borreliosis, caused by Borrelia burgdorferi sensu stricto in the United States and by several Borrelia species in Europe and Asia, has a great impact on the health of the global population. There are human vaccines available, such as the outer surface protein A (OspA) vaccine, but still more evidence is needed to verify its function. We investigated the safety, immunogenicity, and efficacy of adjuvanted or non-adjuvanted vaccines containing protective epitopes from Borrelia species OspA serotypes in healthy adults...
January 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28077149/plasmodium-falciparum-malaria-co-infection-with-tick-borne-relapsing-fever-in-dakar
#8
Mamadou A Diallo, Baidy S Kane, Mouhamadou Ndiaye, Mouhamed Dieng, Khadim Diongue, Aida S Badiane, Mame Cheikh Seck, Daouda Ndiaye
BACKGROUND: West African tick-borne relapsing fever (TBRF) due to Borrelia crocidurae and malaria are co-endemics in Senegal. Although expected to be high, co-infections are rarely reported. A case of falciparum malaria and B. crocidurae co-infection in a patient from Velingara (South of Senegal) is discussed. CASE: A 28 year-old-male patient presented to Aristide Le Dantec Hospital for recurrent fever. He initially presented to a local post health of Pikine (sub-urban of Dakar) and was diagnosed for malaria on the basis of positive malaria rapid diagnostic test (RDT) specific to Plamodium falciparum...
January 11, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28065617/borrelia-miyamotoi-in-vectors-and-hosts-in-the-netherlands
#9
Alex Wagemakers, Seta Jahfari, Bob de Wever, Lodewijk Spanjaard, Markus V Starink, Henry J C de Vries, Hein Sprong, Joppe W Hovius
Ixodes ticks transmit Borrelia burgdorferi sensu lato (s.l.), the causative agent of Lyme borreliosis (LB). These tick species also transmit Borrelia miyamotoi, which was recently found to cause infections in humans. We were interested in the prevalence of B. miyamotoi infection in ticks and natural hosts in The Netherlands, and to what extent ticks are co-infected with B. burgdorferi. In addition, erythema migrans has been sporadically described in B. miyamotoi-infected patients, but these skin lesions might as well represent co-infections with B...
December 30, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28055580/diagnosing-borreliosis
#10
Sally J Cutler, Nataliia Rudenko, Maryna Golovchenko, Wibke J Cramaro, Josiane Kirpach, Sara Savic, Iva Christova, Ana Amaro
Borrelia species fall into two groups, the Borrelia burgdorferi sensu lato (Bbsl) complex, the cause of Lyme borreliosis (also known as Lyme disease), and the relapsing fever group. Both groups exhibit inter- and intraspecies diversity and thus have variations in both clinical presentation and diagnostic approaches. A further layer of complexity is derived from the fact that ticks may carry multiple infectious agents and are able to transmit them to the host during blood feeding, with potential overlapping clinical manifestations...
January 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28054584/inefficient-co-feeding-transmission-of-borrelia-afzelii-in-two-common-european-songbirds
#11
Dieter J A Heylen, Hein Sprong, Aleksandra Krawczyk, Natalie Van Houtte, Dolores Genné, Andrea Gomez-Chamorro, Kees van Oers, Maarten J Voordouw
The spirochete bacterium Borrelia afzelii is the most common cause of Lyme borreliosis in Europe. This tick-borne pathogen can establish systemic infections in rodents but not in birds. However, several field studies have recovered larval Ixodes ricinus ticks infected with B. afzelii from songbirds suggesting successful transmission of B. afzelii. We reviewed the literature to determine which songbird species were the most frequent carriers of B. afzelii-infected I. ricinus larvae and nymphs. We tested experimentally whether B...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28049383/a-lyme-borreliosis-diagnosis-probability-score-no-relation-with-antibiotic-treatment-response
#12
Violeta T Briciu, Mirela Flonta, Daniel Leucuţa, Dumitru Cârstina, Doina F Ţăţulescu, Mihaela Lupşe
OBJECTIVES: (1) To describe epidemiological and clinical data of patients that present with the suspicion of Lyme borreliosis (LB); (2) to evaluate a previous published score that classifies patients on the probability of having LB, following-up patients' clinical outcome after antibiotherapy. METHODS: Inclusion criteria: patients with clinical manifestations compatible with LB and Borrelia (B.) burgdorferi positive serology, hospitalized in a Romanian hospital between January 2011 and October 2012...
January 3, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28040562/enzootic-origins-for-clinical-manifestations-of-lyme-borreliosis
#13
Setareh Jahfari, Aleksandra Krawczyk, E Claudia Coipan, Manoj Fonville, Joppe W Hovius, Hein Sprong, Katsuhisa Takumi
Both early localized and late disseminated forms of Lyme borreliosis are caused by Borrelia burgdorferi senso lato. Differentiating between the spirochetes that only cause localized skin infection from those that cause disseminated infection, and tracing the group of medically-important spirochetes to a specific vertebrate host species, are two critical issues in disease risk assessment and management. Borrelia burgdorferi senso lato isolates from Lyme borreliosis cases with distinct clinical manifestations (erythema migrans, neuroborreliosis, acrodermatitis chronica atrophicans, and Lyme arthritis) and isolates from Ixodes ricinus ticks feeding on rodents, birds and hedgehogs were typed to the genospecies level by sequencing part of the intergenic spacer region...
December 28, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28035112/the-incidence-of-borrelia-burgdorferi-anaplasma-phagocytophilum-and-babesia-microti-coinfections-among-foresters-and-farmers-in-eastern-poland
#14
Anna Pañczuk, Małgorzata Tokarska-Rodak, Maria Kozioł-Montewka, Dorota Plewik
BACKGROUND & OBJECTIVES: Lyme borreliosis is the most common tick-borne disease in Europe and the USA. However, a great variety of pathogens are transmitted by ticks, which results in mixed infections, with Lyme borreliosis. The aim of the present study was to show the incidence of Borrelia burgdorferi, Anaplasma phagocytophilum, and Babesia microti coinfections among the population of foresters and farmers, as these people, due to their profession, are particularly exposed to tick contact...
October 2016: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28030649/whole-genome-sequence-and-comparative-genomics-of-the-novel-lyme-borreliosis-causing-pathogen-borrelia-mayonii
#15
Luke C Kingry, Dhwani Batra, Adam Replogle, Lori A Rowe, Bobbi S Pritt, Jeannine M Petersen
Borrelia mayonii, a Borrelia burgdorferi sensu lato (Bbsl) genospecies, was recently identified as a cause of Lyme borreliosis (LB) among patients from the upper midwestern United States. By microscopy and PCR, spirochete/genome loads in infected patients were estimated at 105 to 106 per milliliter of blood. Here, we present the full chromosome and plasmid sequences of two B. mayonii isolates, MN14-1420 and MN14-1539, cultured from blood of two of these patients. Whole genome sequencing and assembly was conducted using PacBio long read sequencing (Pacific Biosciences RSII instrument) followed by hierarchical genome-assembly process (HGAP)...
2016: PloS One
https://www.readbyqxmd.com/read/28017623/pathogenetic-implications-of-the-age-at-time-of-diagnosis-and-skin-location-for-acrodermatitis-chronica-atrophicans
#16
Katarina Ogrinc, Gary P Wormser, Paul Visintainer, Vera Maraspin, Stanka Lotrič-Furlan, Jože Cimperman, Eva Ružić-Sabljić, Petra Bogovič, Tereza Rojko, Daša Stupica, Franc Strle
BACKGROUND: The pathogenesis of acrodermatitis chronica atrophicans (ACA) is not well understood. OBJECTIVE: The purpose of this study was to gain a better understanding of ACA by utilizing a large data set of adult Slovenian patients with Lyme borreliosis. METHODS: The age of 590 ACA patients was compared with that of patients with other manifestations of Lyme borreliosis. The location of the ACA lesion on the body was compared with that of erythema migrans (EM)...
November 24, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28007428/topical-azithromycin-for-the-prevention-of-lyme-borreliosis-a-randomised-placebo-controlled-phase-3-efficacy-trial
#17
Michael Schwameis, Thomas Kündig, Gustave Huber, Luzi von Bidder, Lorenz Meinel, Roland Weisser, Elisabeth Aberer, Georg Härter, Thomas Weinke, Tomas Jelinek, Gerd Fätkenheuer, Uwe Wollina, Gerd-Dieter Burchard, Roland Aschoff, Ruth Nischik, Gerhard Sattler, Georg Popp, Wolfgang Lotte, Dirk Wiechert, Gerald Eder, Olga Maus, Petra Staubach-Renz, Andrea Gräfe, Veronika Geigenberger, Ingomar Naudts, Michael Sebastian, Norbert Reider, Ridwan Weber, Marc Heckmann, Emil C Reisinger, Georg Klein, Johannes Wantzen, Bernd Jilma
BACKGROUND: Lyme borreliosis develops in 1-5% of individuals bitten by ticks, but with a diagnostic gap affecting up to 30% of patients, a broadly applicable pharmacological prevention strategy is needed. Topical azithromycin effectively eradicated Borrelia burgdorferi sensu lato from the skin in preclinical studies. We assessed its efficacy in human beings. METHODS: In this randomised, double-blind, placebo-controlled, multicentre trial done in 28 study sites in Germany and Austria, adults were equally assigned to receive topical 10% azithromycin or placebo twice daily for 3 consecutive days, within 72 h of a tick bite being confirmed...
December 19, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28007427/prophylaxis-with-topical-azithromycin-against-lyme-borreliosis
#18
Eugene D Shapiro, Gary P Wormser
No abstract text is available yet for this article.
December 19, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28005032/-tick-borne-neuroinfections-clinical-characteristics-immunopathogenesis-and-new-pharmacotherapeutic-strategies
#19
A B Kon'kova-Reidman
AIM: To study the semiotics of neurological lesions in patients with tick-borne encephalitis, Ixodes tick-borne borreliosis (ITBB) and mixed infection (MI), their immunopathogenesis, and the possibilities of current pathogenetic pharmacological correction. SUBJECTS AND METHODS: A total of 220 patients with tick-borne encephalitis, ITBB, and MI concurrent with the syndromes of central nervous system lesions were examined. The immunological studies encompassed the examination of mononuclear cells in the cerebrospinal fluid (CSF), the population and subpopulation composition of lymphocytes, and nitroxidergic processes in the serum and CSF from the total level of final stable nitric oxide metabolites...
2016: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28005031/-follow-up-of-patients-with-ixodes-tick-borne-borrelioses-caused-by-borrelia-miyamotoi-or-borrelia-burgdorferi-sensu-lato
#20
L I Bagautdinova, A E Platonov, D S Sarksyan, O V Stukolova, G A Shipulin, V V Maleev, M V Dudarev
: Ixodes tick-borne borrelioses (ITBB) are caused by two different spirochetes: Borrelia from the group of Borrelia burgdorferi sensu lato, the agents of the classic Lyme borreliosis (LB), and Borrelia miyamotoi that belongs to the group of Borrelia causing tick-borne relapsing fevers. ITBB caused by B. miyamotoi (BM-ITBB) is a previously unknown infectious disease discovered in Russia. It is known that the LB sequelae may reduce the long-term life guality of convalescents. AIM: To study the follow-up of those who have recovered from new BM-ITBB infection in comparison with persons who have had LB...
2016: Terapevticheskiĭ Arkhiv
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