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https://www.readbyqxmd.com/read/28636287/the-spectrum-of-aseptic-central-nervous-system-infections-in-southern-germany-demographic-clinical-and-laboratory-findings
#1
M Kaminski, V Grummel, D Hoffmann, A Berthele, B Hemmer
BACKGROUND AND PURPOSE: Aseptic infections of the central nervous system (CNS) are frequently observed in Germany. However, no study has systematically addressed the spectrum of aseptic CNS infections in Germany. METHODS: Data on 191 adult patients diagnosed from January 2007 to December 2014 with aseptic meningitis or encephalitis/meningoencephalitis at our hospital were collected by chart review and analyzed for demographic, clinical and laboratory findings. Patients were stratified according to the causative virus and findings were compared between groups...
June 21, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28634526/concurrent-babesiosis-and-serological-evidence-of-lyme-disease-in-a-young-patient
#2
Mark Adler, Thein Swe, Akari Thein Naing
Human babesiosis co-infected with Lyme disease in a young patient is an important condition. Here, we describe a case of a 39-year-old male patient with concurrent babesiosis and Lyme disease. Co-infections of tick borne diseases are often difficult to diagnose and underreported, and resulting in significant morbidity and mortality to patients. While co-infections have been infrequently described, it is of paramount importance that clinicians should be able to diagnose early and treat them effectively according to the patient geographical area and history of tick bite...
January 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28632298/patient-med-tbe-f%C3%A3-rb%C3%A3-ttrades-snabbt-vid-behandling-med-kortison-evidens-saknas-dock-f%C3%A3-r-v%C3%A3-rdet-av-immunmodulerande-terapi
#3
Carl Wengse, Jesper Ericsson, Susanna Hallberg, Johan Ursing
Rapid improvement of tick-borne encephalitis after treatment with corticosteroids Tick-borne encephalitis (TBE) is a viral disease transmitted by ticks. The virus is divided into three subtypes named Western, Siberian and Far Eastern TBE virus (TBEV). Western TBEV is endemic in parts of Europe and Sweden and typically causes a biphasic illness with influenza-like symptoms followed by neurological symptoms ranging from mild meningitis to severe meningoencephalitis and death. Despite an effective vaccine, TBE is increasing in Sweden and Europe...
June 16, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28631117/multi-criteria-decision-analysis-to-model-ixodes-ricinus-habitat-suitability
#4
Raphaël Rousseau, Guy McGrath, Barry J McMahon, Sophie O Vanwambeke
Tick-borne diseases present a major threat to both human and livestock health throughout Europe. The risk of infection is directly related to the presence of its vector. Thereby it is important to know their distribution, which is strongly associated with environmental factors: the presence and availability of a suitable habitat, of a suitable climate and of hosts. The present study models the habitat suitability for Ixodes ricinus in Ireland, where data on tick distribution are scarce. Tick habitat suitability was estimated at a coarse scale (10 km) with a multi-criteria decision analysis (MCDA) method according to four different scenarios (depending on the variables used and on the weights granted to each of them)...
June 19, 2017: EcoHealth
https://www.readbyqxmd.com/read/28628633/pro-inflammatory-immune-responses-are-associated-with-clinical-signs-and-symptoms-of-human-anaplasmosis
#5
Anna M Schotthoefer, Steven J Schrodi, Jennifer K Meece, Thomas R Fritsche, Sanjay K Shukla
Human anaplasmosis (HA) is an emerging tick-borne disease that may present as a mild flu-like illness or a life threatening, sepsis-like condition. Although disease severity is hypothesized to relate to immunopathology and immune dysfunction in humans, studies to directly measure immune responses in infected humans have been very limited. We quantified cytokines in 80 confirmed HA patients using a multiplex chemiluminescence immunoassay system and compared similarly measured responses in 1000 control subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28620610/molecular-detection-of-tick-borne-pathogen-diversities-in-ticks-from-livestock-and-reptiles-along-the-shores-and-adjacent-islands-of-lake-victoria-and-lake-baringo-kenya
#6
David Omondi, Daniel K Masiga, Burtram C Fielding, Edward Kariuki, Yvonne Ukamaka Ajamma, Micky M Mwamuye, Daniel O Ouso, Jandouwe Villinger
Although diverse tick-borne pathogens (TBPs) are endemic to East Africa, with recognized impact on human and livestock health, their diversity and specific interactions with tick and vertebrate host species remain poorly understood in the region. In particular, the role of reptiles in TBP epidemiology remains unknown, despite having been implicated with TBPs of livestock among exported tortoises and lizards. Understanding TBP ecologies, and the potential role of common reptiles, is critical for the development of targeted transmission control strategies for these neglected tropical disease agents...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28620587/a-dual-luciferase-reporter-system-for-b-burgdorferi-measures-transcriptional-activity-during-tick-pathogen-interactions
#7
Philip P Adams, Carlos Flores Avile, Mollie W Jewett
Knowledge of the transcriptional responses of vector-borne pathogens at the vector-pathogen interface is critical for understanding disease transmission. Borrelia (Borreliella) burgdorferi, the causative agent of Lyme disease in the United States, is transmitted by the bite of infected Ixodes sp. ticks. It is known that B. burgdorferi has altered patterns of gene expression during tick acquisition, persistence and transmission. Recently, we and others have discovered in vitro expression of RNAs found internal, overlapping, and antisense to annotated open reading frames in the B...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28616483/the-control-of-east-coast-fever-of-cattle-by-live-parasite-vaccination-a-science-to-impact-narrative
#8
B D Perry
There is an increasing interest in determining the impact of vaccine technologies developed using public funding targeted at international development, and understanding the factors and ingredients which contribute to the success and impacts of such vaccines. This paper chronicles the development of a live vaccine against East Coast fever, a tick-borne disease of cattle caused by Theileria parva. The paper describes the technological innovation, commonly known as infection-and-treatment, which was developed some 40 years ago, explores the institutional settings in which the vaccine was developed and refined, and discusses the political dynamics of both during the decades from first development to field deployment and impacts...
December 2016: One Health
https://www.readbyqxmd.com/read/28616477/is-there-a-lyme-like-disease-in-australia-summary-of-the-findings-to-date
#9
REVIEW
Melissa Judith Chalada, John Stenos, Richard Stewart Bradbury
Lyme Borreliosis is a common tick-borne disease of the northern hemisphere caused by the spirochaetes of the Borrelia burgdorferi sensu lato (B. burgdorferi s. l.) complex. It results in multi-organ disease with arthritic, cardiac, neurological and dermatological manifestations. In the last twenty-five years there have been over 500 reports of an Australian Lyme-like syndrome in the scientific literature. However, the diagnoses of Lyme Borreliosis made in these cases have been primarily by clinical presentation and laboratory results of tentative reliability and the true cause of these illnesses remains unknown...
December 2016: One Health
https://www.readbyqxmd.com/read/28615859/molecular-identification-of-babesia-spp-in-naturally-infected-dogs-of-kerala-south-india
#10
Sneha Augustine, Lucy Sabu, Bindu Lakshmanan
Canine babesiosis is a tick borne haemoprotozoan disease caused by large and small intraerythrocytic apicomplexan piroplasms of the genus Babesia spp. The clinical manifestations of the disease vary from inapparent subclinical form to hyperacute shock related haemolytic crisis. Microscopic examination of blood smears from suspected dogs revealed Babesia canis and B. gibsoni in 3.45 and 25.86 % of samples respectively. A seminested PCR based on previously published species specific primers targeting the 18S rRNA gene was utilized to identify the Babesia species infecting dogs of Kerala at the sub species level...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28605964/impact-of-a-freeway-on-the-dispersal-of-ticks-and-ixodes-ricinus-borne-pathogens-forested-resting-areas-may-become-lyme-disease-hotspots
#11
Sándor Hornok, Maria Mulvihill, Krisztina Szőke, Enikő Gönczi, Kinga M Sulyok, Miklós Gyuranecz, Regina Hofmann-Lehmann
Man-made barriers are well known for their effects on ecosystems. Habitat fragmentation, for instance, is a recognised consequence of modern-day infrastructure. The aim of the present study was to investigate the diversity and abundance of tick species, as well as the risks of acquiring tick-borne infections in habitats adjacent to a freeway. Therefore, ixodid ticks were collected from the vegetation at two-week intervals (in the main tick season, from March to June) in eight habitats of different types (forest, grove, grassland) along both sides of a freeway...
June 2017: Acta Veterinaria Hungarica
https://www.readbyqxmd.com/read/28601472/detection-and-phylogenetic-characterisation-of-novel-anaplasma-and-ehrlichia-species-in-amblyomma-triguttatum-subsp-from-four-allopatric-populations-in-australia
#12
Alexander W Gofton, Helen P Waudby, Sophie Petit, Telleasha L Greay, Una M Ryan, Peter J Irwin
Anaplasma and Ehrlichia spp. are tick-borne pathogens that can cause severe disease in domestic animals, and several species are responsible for emerging zoonoses in the northern hemisphere. Until recently, the only members of these genera reported in Australia (A. marginale, A. centrale, and A. platys) were introduced from other continents, through the importation of domestic animals and their associated ticks. However, unique Anaplasma and Ehrlichia 16S rRNA gene sequences were recently detected for the first time in native Australian ticks, particularly in Amblyomma triguttatum subsp...
May 27, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28600768/detection-and-differentiation-of-lyme-spirochetes-and-other-tick-borne-pathogens-from-blood-using-real-time-pcr-with-molecular-beacons
#13
Samantha Schlachter, Kamfai Chan, Salvatore A E Marras, Nikhat Parveen
Real-time PCR assays have recently been implemented in diagnostics for many bacterial pathogens, allowing rapid and accurate detection, which ultimately results in improved clinical intervention. Here, we describe a sensitive method of detection for three common tick-borne pathogens Borrelia burgdorferi, Anaplasma phagocytophilum, and Babesia microti since coinfections with these pathogens have started occurring with increasing frequency over the last several years in both North America and Europe. A shared geographic region, the same tick vectors, and similar transmission cycle all favor simultaneous transmission of these three tick-borne pathogens...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28598270/investigating-the-adult-ixodid-tick-populations-and-their-associated-anaplasma-ehrlichia-and-rickettsia-bacteria-at-a-rocky-mountain-spotted-fever-hotspot-in-western-tennessee
#14
Rebecca T Trout Fryxell, Brain M Hendricks, Kimberly Pompo, Sarah E Mays, Dave J Paulsen, Darwin J Operario, Allan E Houston
Ehrlichiosis and rickettsiosis are two common bacterial tick-borne diseases in the southeastern United States. Ehrlichiosis is caused by ehrlichiae transmitted by Amblyomma americanum and rickettsiosis is caused by rickettsiae transmitted by Amblyomma maculatum and Dermacentor variabilis. These ticks are common and have overlapping distributions in the region. The objective of this study was to identify Anaplasma, Ehrlichia, and Rickettsia species associated with questing ticks in a Rocky Mountain spotted fever (RMSF) hotspot, and identify habitats, time periods, and collection methods for collecting questing-infected ticks...
June 9, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28597313/cellular-response-in-the-tick-feeding-site-in-crossbred-cattle-artificially-infested-by-rhipicephalus-microplus
#15
Jair Rodini Engracia Filho, Chiara Domingues Araújo, Gabriela Nishihara Pinto, Yann Henrique Mendes, Gervasio Henrique Bechara
Ticks and tick-borne diseases are of global importance and can cause serious economic losses to cattle-raising businesses. However, only few attempts have been made to describe the relationships between various cellular immune components and tick counts of, and therefore resistance to, Rhipicephalus microplus. The present study evaluated the late inflammatory cellular response and dermal dendritic cells at the attachment site in naturally presensitized bovines, artificially infested by R. microplus ticks. Twenty-two crossbred (Holstein × Gir) male experimental cattle were artificially infested with approximately 10,000 larvae of R...
June 8, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28592543/mapping-of-transcription-termination-within-the-s-segment-of-sfts-phlebovirus-facilitated-the-generation-of-nss-deletant-viruses
#16
Benjamin Brennan, Veronica V Rezelj, Richard M Elliott
SFTS phlebovirus (severe fever with thrombocytopenia syndrome virus; SFTSV) is an emerging tick-borne bunyavirus that was first reported in China in 2009. Here we report the generation of a recombinant SFTSV (rHB29NSsKO) that cannot express the viral non-structural protein (NSs) upon infection of cells in culture. We show that rHB29NSsKO replication kinetics are greater in interferon (IFN)-incompetent cells and that the virus is unable to suppress IFN induced in response to viral replication. The data confirm for the first time in the context of virus infection that NSs acts as a virally encoded IFN antagonist and that NSs is dispensable for virus replication...
June 7, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28587151/geographical-environment-factors-and-risk-assessment-of-tick-borne-encephalitis-in-hulunbuir-northeastern-china
#17
Yifan Li, Juanle Wang, Mengxu Gao, Liqun Fang, Changhua Liu, Xin Lyu, Yongqing Bai, Qiang Zhao, Hairong Li, Hongjie Yu, Wuchun Cao, Liqiang Feng, Yanjun Wang, Bin Zhang
Tick-borne encephalitis (TBE) is one of natural foci diseases transmitted by ticks. Its distribution and transmission are closely related to geographic and environmental factors. Identification of environmental determinates of TBE is of great importance to understanding the general distribution of existing and potential TBE natural foci. Hulunbuir, one of the most severe endemic areas of the disease, is selected as the study area. Statistical analysis, global and local spatial autocorrelation analysis, and regression methods were applied to detect the spatiotemporal characteristics, compare the impact degree of associated factors, and model the risk distribution using the heterogeneity...
May 26, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28583072/identification-of-candidate-transmission-blocking-antigen-genes-in-theileria-annulata-and-related-vector-borne-apicomplexan-parasites
#18
Laetitia Lempereur, Stephen D Larcombe, Zeeshan Durrani, Tulin Karagenc, Huseyin Bilgin Bilgic, Serkan Bakirci, Selin Hacilarlioglu, Jane Kinnaird, Joanne Thompson, William Weir, Brian Shiels
BACKGROUND: Vector-borne apicomplexan parasites are a major cause of mortality and morbidity to humans and livestock globally. The most important disease syndromes caused by these parasites are malaria, babesiosis and theileriosis. Strategies for control often target parasite stages in the mammalian host that cause disease, but this can result in reservoir infections that promote pathogen transmission and generate economic loss. Optimal control strategies should protect against clinical disease, block transmission and be applicable across related genera of parasites...
June 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28582429/transmission-dynamics-and-control-of-rickettsia-rickettsii-in-populations-of-hydrochoerus-hydrochaeris-and-amblyomma-sculptum
#19
Gina Polo, Carlos Mera Acosta, Marcelo B Labruna, Fernando Ferreira
BACKGROUND: Brazilian Spotted Fever (BSF), caused by the bacterium Rickettsia rickettsii, is the tick-borne disease that generates the largest number of human deaths in the world. In Brazil, the current increase of BSF human cases has been associated with the presence and expansion of capybaras Hydrochoerus hydrochaeris, which act as primary hosts for the tick Amblyomma sculptum, vector of the R. rickettsii in this area. METHODS: We proposed a semi-discrete-time stochastic model to evaluate the role of capybaras in the transmission dynamics of R...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28576950/retrospective-case-reports-of-two-central-north-carolina-residents-frequency-of-tick-bites-and-associated-illnesses-2001-2014
#20
Marcia E Herman-Giddens, D Marcus Herman-Giddens
BACKGROUND Tick bites are a source of illness and disease agents that may lead to morbidity and occasional fatalities in North Carolina. Public health interest in tick-borne illness and disease has increased due to continuing discoveries of tick-borne diseases and their increasing geographic spread and disease incidence. There are no data published on lay individuals with cumulative tick bites and associated illnesses over a period of years.METHODS We learned of a married couple living on a central North Carolina property who had used reasonable bite prevention methods, kept attached ticks after removal, and recorded dates and related illness records from 2001-2014...
May 2017: North Carolina Medical Journal
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