Evidence for an effect of landscape connectivity on Borrelia burgdorferi sensu stricto dispersion in a zone of range expansion

This study suggests that accounting for landscape connectivity may improve model-based predictions of spatial spread patterns of B. burgdorferi s.s. The findings are consistent with possible past dispersal patterns of B. burgdorferi s.s. as determined by phylogeographic studies.
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research

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This study aimed to investigate the presence and perform molecular characterization of Anaplasmataceae, Rickettsia spp., and Borrelia burgdorferi sensu lato (sl) in tick species collected in Corsica. Ticks from cattle (Bos taurus), sheep (Ovis aries), and rodents (Rattus rattus) were collected from May to September 2016. DNA was purified from ticks, submitted to quantitative real-time polymerase chain reaction (qPCR) and sequenced for phylogenetic analysis. In total, 660 ticks were collected from 111 animals during the study. The most abundant collected tick species from cattle was Rhipicephalus bursa (n = 49...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Authors: Boulanger N, Boyer P, Talagrand-Reboul E, Hansmann Y Abstract Ticks are a major group of arthropod vectors, characterized by the diversity of pathogens they transmit, by their impact on human and animal health, and by their socioeconomic implication especially in countries of the Southern Hemisphere. In Europe, Ixodes is the most important tick due to its wide distribution in the ecosystems and the variety of transmitted pathogens, in particular Borrelia (responsible for Lyme borreliosis), but also the tick-borne encephalitis virus. Their increased presence in the environment since the beginning of the 20t...
Source: Medecine et Maladies Infectieuses - Category: Infectious Diseases Tags: Med Mal Infect Source Type: research
Purpose: In southern Canada, Lyme disease (LD) is an emerging tick-borne disease caused by Borrelia burgdorferi. Cases have increased from 144 to 987 between 2009 and 2016. The infection is more frequent in children and older adults probably due to increased exposure to high risk areas during outdoor activities. The aim of this study is to describe the clinical presentation and course of illness among children reported in Monteregie, an emerging area from Quebec province located north of New York state.
Source: International Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: 21.166 Source Type: research
In this study, we investigated tick-borne bacterial pathogens in wild boar, hare, and fox and their ticks in Turkey. A total of 102 tick pools comprised of 445 ticks and blood samples were analyzed for the presence of bacterial DNA by PCRs targeted rickettsial gltA and ompA genes, 5S-23S rDNA gene for Borrelia spp., and msp4 gene for Anaplasma spp. As a result of PCR and sequence analyses, three pathogenic spotted fever group (SFG) rickettsiae, two SFG rickettsiae with unknown pathogenicity and one pathogenic Borrelia burgdorferi sensu lato were detected in samples obtained from wild animals. Rickettsia slovaca was detecte...
Source: Comparative Immunology, Microbiology and Infectious Diseases - Category: Infectious Diseases Source Type: research
Publication date: Available online 23 December 2018Source: Ticks and Tick-borne DiseasesAuthor(s): Amandine Boeuf, Gilles Schnell, Quentin Bernard, Aurelie Kern, Benoît Westermann, Laurence Ehret-Sabatier, Antoine Grillon, Frederic Schramm, Benoît Jaulhac, Nathalie BoulangerAbstractUnderstanding the mechanism of pathogen transmission is essential for the development of strategies to reduce arthropod-borne diseases. The pharmaco- and immunomodulatory properties of insect and acarine saliva play an essential role in the efficiency of pathogen transmission. The skin as the site where arthropod saliva and pathogens...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 14 December 2018Source: Ticks and Tick-borne DiseasesAuthor(s): George Psevdos, Teresa Khoo, Robert Chow, Christopher L Romano, Scott CampbellAbstractIn North America, Lyme disease (LD) is caused predominantly by the spirochete Borrelia burgdorferisensu stricto, and is transmitted by blacklegged ticks. Long Island, New York, is highly endemic for the disease. The C6 peptide (C6P) is currently used as a screening test for LD in our institution. Our objective was to examine how screening with C6P concorded with diagnosis of LD at the Veterans Affairs Medical Center, Northport, Long Island. ...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 6 December 2018Source: Ticks and Tick-borne DiseasesAuthor(s): Tereza Rojko, Petra Bogovič, Stanka Lotrič-Furlan, Katarina Ogrinc, Tjaša Cerar-Kišek, Urška Glinšek Biškup, Miroslav Petrovec, Eva Ružić-Sabljić, Andrej Kastrin, Franc StrleAbstractThe aims of the study were to determine the frequency of borrelial infection in patients with peripheral facial palsy (PFP) and to compare clinical and laboratory characteristics of patients with borrelial PFP and patients with PFP of unknown etiology.Adult patients with PFP who presented at our department be...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Conclusion: The study demonstrates an association between MD and positive tests for both Bb and RFB spirochetes. In conjunction with previous studies, our study provides corroborative evidence linking MD to Borrelia infection and tick-borne illness. PMID: 30519067 [PubMed]
Source: Clinical, Cosmetic and Investigational Dermatology - Category: Dermatology Tags: Clin Cosmet Investig Dermatol Source Type: research
Publication date: Available online 3 December 2018Source: Ticks and Tick-borne DiseasesAuthor(s): Sukanya Narasimhan, Carmen J. Booth, Kathleen DePonte, Ming-Ji Wu, Xianping Liang, Subhasis Mohanty, Fred Kantor, Erol FikrigAbstractIxodes scapularis vectors several pathogens including Borrelia burgdorferi, the agent of Lyme disease. Nymphal and larval stages, and the pathogens transmitted by I. scapularis are maintained in a zoonotic cycle involving rodent reservoir hosts, predominantly Peromyscus leucopus. Humans are not reservoir hosts, however, accidental encounters of infected ticks with humans, results in pathogen tran...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
The objective of this work was to determine the prevalence of Borrelia and Bartonella species in Ixodes spp. ticks collected from 16 USA states. Genus PCR amplification and sequence analysis of Bartonella and Borrelia 16SsRNA-23SsRNA intergenic regions were performed on DNA extracted from 929 questing adult ticks (671 Ixodes scapularis, 155 Ixodes affinis, and 103 Ixodes pacificus). Overall, 129/929 (13.9%) Ixodes ticks were PCR positive for Borrelia burgdorferi sensu stricto, 48/929 for B. bissettiae whereas 23/929 (2.5%) were PCR positive for a Bartonella henselae. Borrelia bissettiae or B. burgdorferi s.s. and B. hensel...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
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