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Endemic measles persists in China, despite >95% reported coverage of two measles-containing vaccine doses and nationwide campaign that vaccinated more than 100 million children in 2010. In 2011, almost half of the 9943 measles cases in China occurred in children eligible for measles vaccination. We conducted a case-control study during 2012–2013 to identify risk factors for measles infection in...
Endemic measles persists in China, despite >95% reported coverage of two measles-containing vaccine doses and nationwide campaign that vaccinated more than 100 million children in 2010. We performed a case–control study in six Chinese provinces during January 2012 through June 2013 to identify risk factors for measles infection among children aged 0–7 months.Children with laboratory-confirmed measles...
To develop effective, convenient and stable mucosal vaccines, mannose-PEG-cholesterol (MPC)/lipid A-liposomes (MLLs) entrapping model antigen bovine serum albumin (BSA) were prepared by the procedure of emulsification–lyophilization and used to constitute microneedles, forming the proMLL-filled microneedle arrays (proMMAs). The proMMAs were rather stable and hard enough to pierce porcine skin and,...
Inactivated porcine parvovirus (PPV) vaccines are available commercially and widely used in the breeding herds. However, inactivated PPV vaccines have deficiencies in induction of specific cellular immune response. Transfer factor (TF) is a material that obtained from the leukocytes, and is a novel immune-stimulatory reagent that as a modulator of the immune system. In this study, the immunogenicity...
In order to observe the dosage-effect of recombinant pig interleukin-6 gene and CpG motifs on the immune responses of swine to vaccine, a novel recombinant eukaryotic VPIL6C plasmid was packed with chitosan nanoparticles (CNP) prepared by ionic cross linkage, which contains pig interleukin-6 gene and immunostimulatory sequence consisted of 11 CpG motifs. CNP-VRIL6C was then utilized to inoculate 30-day-old...
The recognition of microbial CpG-DNA by toll-like receptor 9 (TLR9) might promote excessive inflammatory response or inflammatory disorder. To prevent possible clinical pathological injury following the TLR9 activation, here we have investigated a series of CpG-DNA sequences from conventional microbes using a bioinformatics tool of pattern search, and successfully identified CpG-ODN c41 from Pseudomonas...
In order to explore the safe and effective adjuvant for promotion of immunity of animals against infection, the experiment was carried out to shuffle Tibet pig IL-2 cDNA with other IL-2 cDNA from human, yak and mouse, and the effect of shuffled IL-2 (IL-2S) gene in vivo was investigated on immunity of mice to Pasteurella multocida. The IL-2S protein was found to remarkably promote the proliferation...
Experiments were conducted to investigate the effect of a fusion gene of porcine IL-4 and IL-6 (PIL4/IL6) packaged with chitosan nanoparticles (CNPs) in terms of the development of a novel effective adjuvant. The IL4/PIL6 fusion gene was constructed and inserted into a eukaryotic expression vector. The plasmid was bound to CNP and then utilized to orally inoculate 21-day-old female Kunming mice that...
HCV is a major cause of chronic liver disease, cirrhosis, hepatocellular carcinoma and death of end-stage liver disease worldwide. Therapy regimen based on IFN-α combined with ribavirin can induce a sustained virological and biochemical response in 20–60% of treated patients depending on the HCV genotype, the virus load and the age of the patients. So the development of a preventive or a therapeutic...
Potential live vaccines for HIV were developed using an Lpp-OmpA system to target an HIV antigen, reverse transcriptase, or an immunodominant epitope of this enzyme, to the outer membrane of an attenuated strain of Salmonella SL3261. These live vaccines were administered orally to mice, and fecal IgA and helper T cell responses were measured. Results indicated a fecal IgA response specific to HIV...
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