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Tick borne encephalitis vaccine

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https://www.readbyqxmd.com/read/27875810/nonstructural-protein-1-of-tick-borne-encephalitis-virus-induces-oxidative-stress-and-activates-antioxidant-defense-by-the-nrf2-are-pathway
#1
Yulia V Kuzmenko, Olga A Smirnova, Alexander V Ivanov, Elizaveta S Starodubova, Vadim L Karpov
BACKGROUND: Infection with tick-borne encephalitis virus (TBEV) causes pathological changes in the central nervous system. However, the possible redox alterations in the infected cells that can contribute to the virus pathogenicity remain unknown. OBJECTIVE: In the current study we explored the ability of TBEV nonstructural protein 1 (NS1) to induce oxidative stress and activate antioxidant defense via the nuclear factor (erythroid-derived-2)-like 2/antioxidant response element (Nrf2/ARE) pathway...
November 23, 2016: Intervirology
https://www.readbyqxmd.com/read/27779467/travel-related-tick-borne-encephalitis-israel-2006-2014
#2
Eyal Meltzer, Yael Paran, Yaniv Lustig, Shmuel Stienlauf, Miriam Weinberger, Eli Schwartz
During 2006-2014, four tick-borne encephalitis (TBE) cases occurred among Israeli travelers. We calculated TBE incidence at 321.0, 45.0, 13.2, and 7.5 cases/100,000 travelers/year of travel to Sweden, Switzerland, Austria, and Germany, respectively. TBE incidence among travelers to these destinations appears to justify TBE vaccination in accordance with World Health Organization recommendations.
January 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27760182/revisiting-recombination-signal-in-the-tick-borne-encephalitis-virus-a-simulation-approach
#3
Yann J K Bertrand, Magnus Johansson, Peter Norberg
The hypothesis of wide spread reticulate evolution in Tick-Borne Encephalitis virus (TBEV) has recently gained momentum with several publications describing past recombination events involving various TBEV clades. Despite a large body of work, no consensus has yet emerged on TBEV evolutionary dynamics. Understanding the occurrence and frequency of recombination in TBEV bears significant impact on epidemiology, evolution, and vaccination with live vaccines. In this study, we investigated the possibility of detecting recombination events in TBEV by simulating recombinations at several locations on the virus' phylogenetic tree and for different lengths of recombining fragments...
2016: PloS One
https://www.readbyqxmd.com/read/27717318/recombinant-domains-iii-of-tick-borne-encephalitis-virus-envelope-protein-in-combination-with-dextran-and-cpgs-induce-immune-response-and-partial-protectiveness-against-tbe-virus-infection-in-mice
#4
Anna S Ershova, Olga A Gra, Alexander M Lyaschuk, Tatyana M Grunina, Artem P Tkachuk, Mikhail S Bartov, Darya M Savina, Olga V Sergienko, Zoya M Galushkina, Vladimir P Gudov, Liubov I Kozlovskaya, Ivan S Kholodilov, Larissa V Gmyl, Galina G Karganova, Vladimir G Lunin, Anna S Karyagina, Alexander L Gintsburg
BACKGROUND: E protein of tick-borne encephalitis virus (TBEV) and other flaviviruses is located on the surface of the viral particle. Domain III of this protein seems to be a promising component of subunit vaccines for prophylaxis of TBE and kits for diagnostics of TBEV. METHODS: Three variants of recombinant TBEV E protein domain III of European, Siberian and Far Eastern subtypes fused with dextran-binding domain of Leuconostoc citreum KM20 were expressed in E...
October 7, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27715427/tick-borne-encephalitis-what-travellers-should-know-when-visiting-an-endemic-country
#5
Aleš Chrdle, Vaclav Chmelik, Daniel Ruzek
Tick-borne encephalitis (TBE) is an acute febrile illness with neurological manifestations that is prevalent in forested areas of moderate climate in Europe and Asia. TBE virus is transmitted by ticks and rarely by unpasteurized milk and dairy products. The disease burden is attributed mainly to resulting long-term disability, especially in individuals over 50 years of age. Currently, there is no causative treatment, but a very effective vaccination is available with a good safety profile. The vaccination requires three basic doses to be fully effective and regular boosters afterwards...
August 15, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27660864/students-attitudes-to-tick-risks
#6
Helena Nejezchlebova, Dorota Kiewra, Alena Žákovská, Petra Ovesná
INTRODUCTION AND OBJECTIVES: The ever-increasing number of patients with tick-borne diseases resulted in the presented study investigating the awareness, attitudes and knowledge among students about the threats arising from tick bites and preventive anti-tick practices. MATERIALS AND METHOD: Questionnaires concerning these issues were distributed amongst Czech and Polish university students of science. Responses were analyzed by nationality and by gender. RESULTS: Nearly all respondents were aware of the risks arising from ticks and could name at least one disease transmitted by ticks...
September 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/27642148/-tick-borne-encephalitis-in-a-child-in-a-nonendemic-country-a-case-report
#7
M Levy, M-T Abi-Warde, A-C Rameau, S Fafi-Kremer, Y Hansmann, M Fischbach, L Higel
Tick-borne encephalitis (TBE) is an arbovirus induced by tick-borne encephalitis virus (TBEV) transmitted by tick bite. The disease is rare in France (two to three cases per year) but endemic zones extend from Western Europe to the east coast of Asia (10,000-15,000 cases per year). An 8-year-old boy was admitted to our pediatric ward in Strasbourg (France) for febrile headache with diplopia. Four days after a tick bite, he declared a febrile headache together with maculopapular rash on the elbows, knees, and cheeks...
October 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27633257/a-serological-protein-microarray-for-detection-of-multiple-cross-reactive-flavivirus-infections-in-horses-for-veterinary-and-public-health-surveillance
#8
N B Cleton, K van Maanen, S A Bergervoet, N Bon, C Beck, G-J Godeke, S Lecollinet, R Bowen, D Lelli, N Nowotny, M P G Koopmans, C B E M Reusken
The genus Flavivirus in the family Flaviviridae includes some of the most important examples of emerging zoonotic arboviruses that are rapidly spreading across the globe. Japanese encephalitis virus (JEV), West Nile virus (WNV), St. Louis encephalitis virus (SLEV) and Usutu virus (USUV) are mosquito-borne members of the JEV serological group. Although most infections in humans are asymptomatic or present with mild flu-like symptoms, clinical manifestations of JEV, WNV, SLEV, USUV and tick-borne encephalitis virus (TBEV) can include severe neurological disease and death...
September 15, 2016: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/27473856/flavivirus-ns1-a-multifaceted-enigmatic-viral-protein
#9
REVIEW
Meghana Rastogi, Nikhil Sharma, Sunit Kumar Singh
Flaviviruses are emerging arthropod-borne viruses representing an immense global health problem. The prominent viruses of this group include dengue virus, yellow fever virus, Japanese encephalitis virus, West Nile virus tick borne encephalitis virus and Zika Virus. These are endemic in many parts of the world. They are responsible for the illness ranging from mild flu like symptoms to severe hemorrhagic, neurologic and cognitive manifestations leading to death. NS1 is a highly conserved non-structural protein among flaviviruses, which exist in diverse forms...
2016: Virology Journal
https://www.readbyqxmd.com/read/27397572/post-tick-borne-encephalitis-virus-vaccination-narcolepsy-with-cataplexy
#10
Hildegard Hidalgo, Ulf Kallweit, Johannes Mathis, Claudio L Bassetti
STUDY OBJECTIVES: Narcolepsy with cataplexy (NC) is a chronic neurological disorder thought to result from an altered immune response based on a genetic predisposition coupled with environmental factors. Pandemrix vaccination has been reported to increase the risk of narcolepsy. We aimed at identifying other vaccines associated with the onset of narcolepsy. METHODS: Case series and retrospective database study. RESULTS: We identified four cases of NC following a tick-borne encephalitis (TBE) vaccination with FSME Immun...
October 1, 2016: Sleep
https://www.readbyqxmd.com/read/27365085/vaccinations-for-neuroinfectious-disease-a-global-health-priority
#11
REVIEW
Emily C Leibovitch, Steven Jacobson
Vaccines for neuroinfectious diseases are becoming an ever-increasing global health priority, as neurologic manifestations and sequelae from existing and emerging central nervous system infections account for significant worldwide morbidity and mortality. The prevention of neurotropic infections can be achieved through globally coordinated vaccination campaigns, which have successfully eradicated nonzoonotic agents such as the variola viruses and, hopefully soon, poliovirus. This review discusses vaccines that are currently available or under development for zoonotic flaviviruses and alphaviruses, including Japanese and tick-borne encephalitis, yellow fever, West Nile, dengue, Zika, encephalitic equine viruses, and chikungunya...
July 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/27364148/an-outbreak-of-tick-borne-encephalitis-associated-with-raw-goat-milk-and-cheese-consumption-croatia-2015
#12
Leo Markovinović, M L Kosanović Ličina, V Tešić, D Vojvodić, I Vladušić Lucić, T Kniewald, T Vukas, M Kutleša, Lidija Cvetko Krajinović
The aim of this report is to emphasize the risk of acquiring TBE by the consumption of raw milk and dairy products. In April-May 2015, we registered the first outbreak of tick-borne encephalitis in Croatia in seven members out of ten exposed persons who consumed raw goat milk or cheese from the same supplier. Infection was confirmed by TBEV enzyme-linked immunosorbent assay (ELISA) in all patients. None had been vaccinated nor had observed a tick bite.
October 2016: Infection
https://www.readbyqxmd.com/read/27348895/-tick-borne-encephalitis-an-update
#13
Ingo Stock
Tick-borne encephalitis (TBE) is a systemic infectious disease with nonspecific symptoms and/or severe neurological disorders such as meningitis, encephalitis and myelitis. The disease is caused by TBE virus, an enveloped RNA virus belonging to the family of flaviviruses. Three subtypes are currently present in different parts of Europe and Asia. The TBE virus is transmitted to humans primarily by the tick bite of Ixodes species such as I. ricinus, but also by the ingestion of contaminated raw milk and raw milk products...
May 2016: Medizinische Monatsschrift Für Pharmazeuten
https://www.readbyqxmd.com/read/27268448/-immunization-against-tick-borne-encephalitis
#14
REVIEW
Martin Krause, Sabine Majer
Tick-borne encephalitis (TBE) is a viral infection that may cause irreversible damage to the brain and even result in death. No specific therapy exists. Active immunization is of major importance in controlling the infection. Vaccination is recommended to all adults and children > 6 years who live in endemic areas. Two inactivated vaccines are available in Switzerland. The vaccination schedule includes a basic immunization composed of 3 injections followed by boosting every 10 years. The efficacy of the vaccines has never been investigated in controlled studies, however, from indirect evidence, the vaccines are thought to cause good protection and to be safe...
2016: Therapeutische Umschau. Revue Thérapeutique
https://www.readbyqxmd.com/read/27189583/prevalence-estimation-of-tick-borne-encephalitis-virus-tbev-antibodies-in-dogs-from-finland-using-novel-dog-anti-tbev-igg-mab-capture-and-igg-immunofluorescence-assays-based-on-recombinant-tbev-subviral-particles
#15
Lev Levanov, Cristina Pérez Vera, Olli Vapalahti
Tick-borne encephalitis (TBE) is one of the most dangerous human neurological infections occurring in Europe and Northern parts of Asia with thousands of cases and millions vaccinated against it. The risk of TBE might be assessed through analyses of the samples taken from wildlife or from animals which are in close contact with humans. Dogs have been shown to be a good sentinel species for these studies. Serological assays for diagnosis of TBE in dogs are mainly based on purified and inactivated TBEV antigens...
July 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27183602/dual-function-of-ccr5-during-langat-virus-encephalitis-reduction-in-neutrophil-mediated-central-nervous-system-inflammation-and-increase-in-t-cell-mediated-viral-clearance
#16
Daniela Michlmayr, Susana V Bardina, Carlos A Rodriguez, Alexander G Pletnev, Jean K Lim
Tick-borne encephalitis virus (TBEV) is a vector-transmitted flavivirus that causes potentially fatal neurologic infection. There are thousands of cases reported annually, and despite the availability of an effective vaccine, the incidence of TBEV is increasing worldwide. Importantly, up to 30% of affected individuals develop long-term neurologic sequelae. We investigated the role of chemokine receptor Ccr5 in a mouse model of TBEV infection using the naturally attenuated tick-borne flavivirus Langat virus (LGTV)...
June 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27111657/predictors-neuroimaging-characteristics-and-long-term-outcome-of-severe-european-tick-borne-encephalitis-a-prospective-cohort-study
#17
Thorsten Lenhard, Daniela Ott, Nurith J Jakob, Mirko Pham, Philipp Bäumer, Francisco Martinez-Torres, Uta Meyding-Lamadé
BACKGROUND AND OBJECTIVES: Tick-borne encephalitis (TBE) still represents a considerable medical and health economic problem in Europe and entails a potential threat to travellers. The aim of this study was to characterise the conditions of severe TBE by precisely recording its clinical variants, the related neuroimaging features, and the variant-specific long-term outcome and by identifying predictors for severe courses. METHODS: A cohort of 111 TBE patients (median age 51, range 17-75 years; 42% females) was analysed prospectively...
2016: PloS One
https://www.readbyqxmd.com/read/27102744/correlating-flavivirus-virulence-and-levels-of-intrinsic-disorder-in-shell-proteins-protective-roles-vs-immune-evasion
#18
Gerard Kian-Meng Goh, A Keith Dunker, Vladimir N Uversky
Computational analyses revealed correlations between the intrinsic disorder propensity of shell proteins and case fatality rates (CFRs) among Flaviviruses and within at least two Flavivirus species, such as tick-borne encephalitis virus (TBEV) and dengue virus (DENV). The shell proteins analyzed in this study are capsid (C) and membrane (PrM, Pr, and M) proteins. The highest correlations can be found when regression analyses were conducted using Pr (Flavivirus: r(2) = 0.78, p < 0.01) or M (Flavivirus: r(2) = 0...
May 24, 2016: Molecular BioSystems
https://www.readbyqxmd.com/read/27087558/epidemiology-of-tick-borne-encephalitis-tbe-in-international-travellers-to-western-central-europe-and-conclusions-on-vaccination-recommendations
#19
REVIEW
Robert Steffen
BACKGROUND: Tick-borne encephalitis (TBE) endemicity is spreading in Europe becoming an increasing health risk also for travellers. Previous reviews on TBE in civilian travellers lacked of numerator data and offered at most rough estimates on denominator data. An evidence-based quantification of the risk so far has been impossible; that resulted in fundamentally differing vaccination recommendations. METHODS: A standard internet search was conducted with a focus on the data used to formulate vaccination recommendations...
April 2016: Journal of Travel Medicine
https://www.readbyqxmd.com/read/27076305/vaccinomics-approach-to-tick-vaccine-development
#20
Marinela Contreras, Margarita Villar, Pilar Alberdi, José de la Fuente
Ticks are blood-feeding arthropod ectoparasites that transmit disease-causing pathogens to humans and animals worldwide. Vaccines using tick antigens have proven to be cost-effective and environmental friendly for the control of vector infestations and pathogen infection and transmission. However, new strategies are needed to identify tick protective antigens for development of improved vaccines. These strategies will be greatly enhanced by vaccinomics approaches starting from the study of tick-host-pathogen molecular interactions and ending in the characterization and validation of vaccine formulations...
2016: Methods in Molecular Biology
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