نتایج جستجو برای: hiv vaccine
تعداد نتایج: 309384 فیلتر نتایج به سال:
BACKGROUND A human immunodeficiency virus (HIV) vaccine that limits disease and transmission is urgently needed. This clinical trial evaluated the safety and immunogenicity of an HIV vaccine that combines a plasmid-DNA priming vaccine and a modified vaccinia virus Ankara (MVA) boosting vaccine. METHODS Forty healthy volunteers were injected with DNA plasmids containing gp160 of HIV-1 subtypes...
Background: Development of an effective vaccine is highly needed in order to restrict the AIDS pandemic. DNA vaccines initiate both arms of immunity without the potential of causing disease. HIV-1 p24 and gp41 (gag and env) proteins play important roles in viral pathogenesis and are effective candidates for immune induction and vaccine design. Objective: In this study, new DNA vaccine candidate...
OBJECTIVE To evaluate the influence of a human immunodeficiency virus (HIV) vaccine given to uninfected volunteers on the interpretation of serodiagnostic HIV test results. DESIGN Retrospective cohort study. SETTING 5 AIDS Vaccine Evaluation Units funded by the National Institute of Allergy and Infectious Diseases. PARTICIPANTS The first 266 healthy adult volunteers (aged 18 to 60 years) ...
introduction : designing an effective vaccine against human immunodeficiency virus (hiv)-1 is a global health priority . multi-epitope vaccines offer several potential advantages that may be promising in case of mutable divergent pathogens such as hiv-1. herein, a multiepitopic recombinant protein containing various hiv-1 antigens was expressed in e. coli cells and its immunogenicity in combina...
BACKGROUND Individuals infected with human immunodeficiency virus (HIV) are at increased risk for severe influenza, yet immune responses to standard-dose intramuscular (IM) influenza vaccine are suboptimal in this population. Intradermal (ID) delivery of influenza vaccine might improve immune response through enhanced stimulation of dendritic cells. METHODS We conducted a randomized, double-b...
Compelling evidence now suggests that alphabeta CD8 cytotoxic T lymphocytes (CTL) have an important role in preventing human immunodeficiency virus (HIV) infection and/or slowing progression to AIDS. Here, we describe an HIV type 1 CTL polyepitope, or polytope, vaccine comprising seven contiguous minimal HLA A2-restricted CD8 CTL epitopes conjoined in a single artificial construct. Epitope-spec...
BACKGROUND Developing an effective HIV vaccine is the overriding priority for HIV prevention research. Enrolling and maintaining cohorts of men into HIV vaccine efficacy trials is a necessary prerequisite for the development and licensure of a safe and efficacious vaccine. METHODS One hundred-fifty consenting HIV-negative men were enrolled into a pilot 1:1 randomised controlled trial of immed...
BACKGROUND Recruitment, enrollment and retention of volunteers in an HIV vaccine trial is important in the efforts to ultimately develop a vaccine that can prevent new HIV infections. Following recruitment, some randomized individuals decline to be enrolled in an HIV vaccine trial. The reasons for such a decision are not well known. This article describes why individuals who were randomized in ...
Limited understanding of correlates of protection from HIV transmission hinders development of an efficacious vaccine. D. J. M. Lewis and colleagues (J. Virol. 88:11648-11657, 2014, doi:10.1128/JVI.01621-14) now report that vaginal immunization with an HIVgp140 vaccine linked to the 70-kDa heat shock protein downregulated the human immunodeficiency virus (HIV) coreceptor CCR5 (chemokine [C-C mo...
Protease inhibitor therapy dramatically reduces HIV viral load, however, when patients stop taking their medications, their viral load can rebound. A new product called remune (the Salk HIV vaccine) appears to enhance the immune system's response to HIV. However, since remune is a therapeutic vaccine, it cannot prevent HIV infection. Clinical trials of remune are expected to begin in Canada.
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