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Tuberculosis is one of the leading causes of mortality from an infectious disease worldwide, however, the efficacy of BCG vaccine against adult pulmonary tuberculosis still remains instability. Therefore, it is an urgent work to develop both safe and effective vaccine to TB.To clarify the liposome encapsulated DNA vaccine was effectively working as a vaccine delivery system to evoke mucosal intestinal...
M01ZH09, S. Typhi (Ty2ΔaroCΔssaV) ZH9, is a single oral dose typhoid vaccine with independently attenuating deletions. A phase II randomized, double-blind, placebo-controlled, dose-escalating trial evaluated the safety and immunogenicity of M01ZH09 to 1.7×10 10 colony-forming units (CFU). 187 Healthy adults received vaccine or placebo in four cohorts. Serologic responses and IgA ELISPOT were...
Plant viruses show significant potential as expression vectors for producing foreign proteins in plants. In this study, codon-optimized VP6 gene (sVP6) of human rotavirus was engineered as a replacement to the coat protein (CP) open reading frame of Beet black scorch virus (BBSV). In vitro-generated RNA transcripts corresponding to the engineered virus were infectious when inoculated onto the leaves...
Edwardsiella tarda is an important aquaculture pathogen that can infect a wide range of marine and freshwater fish worldwide. In this study, a modified E. tarda strain, TX5RM, was selected by multiple passages of the pathogenic E. tarda strain TX5 on growth medium containing the antibiotic rifampicin. Compared to the wild type strain, the rifampicin-resistant mutant TX5RM (i) shows drastically increased...
Consumed for centuries, lactic acid bacteria are excellent candidates for the development of safe mucosal delivery vehicles for prophylactic and therapeutic molecules. We have recently reported that the immune response to an effective OspA-expressing L. plantarum vaccine for Lyme disease is modulated by the lipid modification of the antigen. In this study, we investigated if this technology can be...
Attenuated Salmonella enterica offers a vaccine delivery route that has the benefits of enhanced immunogenicity and oral delivery. The majority of immunization studies have been conducted to deliver recombinant proteins, expressed from a gene that is either chromosomally integrated or carried on a low- or medium-copy number plasmid. There are, however, an increasing number of reports demonstrating...
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