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Accelerated vaccination against japanese encephalitis

Ara Ko, Seo Ri Wui, Ji In Ryu, Hien Thi Thu Do, Yeon Jeong Lee, Soo Jeong Lim, Inmoo Rhee, Dae Im Jung, Jin-Ah Park, Jung-Ah Choi, Man Ki Song, Na Gyong Lee
Adjuvants are essential vaccine components used to enhance, accelerate, and/or prolong adaptive immunity against specific vaccine antigens. In this study, we compared the adjuvanticity of two adjuvant formulations containing de-O-acylated lipooligosaccharide (dLOS), a toll-like receptor 4 agonist, on the Japanese encephalitis (JE) vaccine in mice. Mice were immunized once or twice at a two-week interval with inactivated JE vaccine in the absence or presence of adjuvant. We found that both the alum- and the liposome-based formulation induced significantly faster and higher serum IgG antibody responses as compared with the non-adjuvanted vaccine after either one or two immunizations...
February 2018: Archives of Pharmacal Research
Shaobo Wang, Yang Liu, Jiao Guo, Peilin Wang, Leike Zhang, Gengfu Xiao, Wei Wang
Japanese encephalitis virus (JEV), an arthropod-borne flavivirus, is a major cause of acute viral encephalitis in humans. No approved drug is available for the specific treatment of JEV infections, and the available vaccines are not effective against all clinical JEV isolates. In the study described here, a high-throughput screening of an FDA-approved drug library for inhibitors of JEV was performed. Five hit drugs that inhibited JEV infection with a selective index of >10 were identified. The antiviral activities of these five hit drugs against other flavivirus, including Zika virus, were also validated...
November 1, 2017: Journal of Virology
Catherine Goujon
The recommendations on travelers' immunizations are regularly evolving in accordance with the data of clinical studies and the epidemiological situation in the world. The recent changes concern the schedule of injections: primovaccination DTCaPolio of children and boosters for adults, accelerated schedule of Japanese encephalitis and hepatitis B immunization, preexposure rabies immunization and vaccination against yellow fever; and the indications of poliomyelitis vaccine, immunization of children against Japanese encephalitis and conjugated vaccines against meningococcal meningitis...
April 2015: La Revue du Praticien
Tomas Jelinek, Gerd D Burchard, Sebastian Dieckmann, Silja B├╝hler, Maria Paulke-Korinek, Hans D Nothdurft, Emil Reisinger, Khaleel Ahmed, Dietrich Bosse, Seetha Meyer, Marco Costantini, Michele Pellegrini
BACKGROUND: The current Japanese encephalitis (JE) vaccination regimen requires two doses and 4 weeks to complete, which may not always be feasible for travelers on short notice. One of the primary endpoints of this phase III study was to demonstrate noninferiority of immune responses to a JE vaccine following an accelerated 1-week JE vaccination regimen administered concomitantly with a rabies vaccine as compared to a standard 4-week JE regimen alone. In addition, the immunogenicity of concomitant administration of JE and rabies vaccines following standard regimens was evaluated, as well as the tolerability and safety profile of each regimen under study...
July 2015: Journal of Travel Medicine
A K Broom, M J Wallace, J S Mackenzie, D W Smith, R A Hall
In northwestern Australia, the flavivirus Murray Valley encephalitis (MVE) poses a significant health risk to infants in some aboriginal communities, particularly during each wet season. While there are too few cases to warrant the development of a vaccine against MVE, a safe, effective prophylaxis for these children is still urgently required. The use of passive transfer of human gamma globulin to MVE or immunisation with a vaccine to the closely related Japanese encephalitis (JE) virus were investigated as potential strategies...
June 2000: Journal of Medical Virology
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