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Combination vaccines containing a monocomponent acellular pertussis (aP) vaccine, manufactured at Statens Serum Institut (SSI), Denmark, have successfully controlled Bordetella pertussis infections in Denmark since 1997. The efficacy of this aP vaccine was 71% in a double-blind, randomised and controlled clinical trial. Its safety and immunogenicity have been demonstrated in infants, children, adolescents...
Actinobacillus pleuropneumoniae is the causative agent of acute and chronic pleuroneumonia that is responsible for substantial morbidity and mortality in the pig industry. New improved vaccines that can protect against all serotypes and prevent colonization are required. In a previous study we showed that whole cells of Propionibacterium acnes protected pigs from A. pleuropneumoniae serotype 1 and...
In this study we have investigated the potential of mycobacterial proteins as candidate subunit vaccines for bovine tuberculosis. In addition, we have explored the use of TLR-ligands as potential adjuvants in cattle. In vitro screening assays with whole blood from Mycobacterium bovis-infected and BCG-vaccinated cattle demonstrated that fusion protein constructs were most commonly recognised, and the...
Previous studies in experimental ponies using interferon gamma (IFN-γ) as a marker for cell mediated immune (CMI) response demonstrated an increase in IFN-γ gene expression following vaccination with an ISCOM subunit, a canarypox recombinant and more recently, an inactivated whole virus vaccine. The objective of this study was to carry out an independent comparison of both humoral antibody and CMI...
Decades after public health interventions – including pre- and post-exposure vaccination – were used to eradicate smallpox, zoonotic orthopoxvirus outbreaks and the potential threat of a release of variola virus remain public health concerns. Routine prophylactic smallpox vaccination of the public ceased worldwide in 1980, and the adverse event rate associated with the currently licensed live vaccinia...
Bordetella parapertussis, a close related species of B. pertussis, can also cause the disease named pertussis or whooping cough. The number of cases caused by this related pathogen has risen sustained in the last years. The widely used cellular (wP) or acellular (aP) pertussis vaccines have little or no efficacy against B. parapertussis. In an effort to devise an effective acellular vaccine against...
Aeromonas salmonicida subsp. salmonicida is the etiologic agent of furunculosis, a frequent and significant disease of fisheries worldwide. The disease is largely controlled by commercial oil adjuvanted vaccines containing bacterins. However, the mechanisms leading to a protective immune response remain poorly understood. The type-three secretion system (T3SS) plays a central role in virulence of...
Background: Meta-analyses enable summarization and interpretation of data across clinical trials. When applied to safety data they allow for detection of rare events. Recently, a 13-valent pneumococcal conjugate vaccine (PCV13) was approved in multiple countries worldwide for routine immunization of infants and young children. This meta-analysis was conducted to identify potentially clinically important...
In this study we aimed to identify genes that are responsive to pertussis toxin (PTx) and might eventually be used as biological markers in a testing strategy to detect residual PTx in vaccines. By microarray analysis we screened six human cell types (bronchial epithelial cell line BEAS-2B, fetal lung fibroblast cell line MRC-5, primary cardiac microvascular endothelial cells, primary pulmonary artery...
Flavobacterium columnare, the causative agent of columnaris disease, is a highly diverse species comprised by three genomovars. Genomovar II strains are more virulent toward catfishes than genomovar I isolates. The objective of this study was to compare the vaccine efficacy of avirulent mutants derived from genomovars I and II using a rifampicin-resistance strategy. First, we compared the efficacy...
Influenza vaccines have been recommended for populations at risk for severe infection in low and middle income countries (LMICs) although knowledge of the evidence-base for their effectiveness and efficacy is limited in these countries. The aim of this systematic review is to provide an overview of the evidence-base for the effectiveness and efficacy of influenza vaccines in LMICs and to explore critical...
The increased possibility of bioterrorism has led to reinitiation of smallpox vaccination. In Korea, more than 30 years have passed since the last smallpox vaccinations, and even people who were previously vaccinated are not regarded as adequately protected against smallpox. We evaluated the efficacy and safety of CJ-50300, a newly developed cell culture-derived smallpox vaccine, in healthy adults...
The challenge of keeping vaccines cold at health posts given the unreliability of power sources in many low- and middle-income countries and the expense and maintenance requirements of solar refrigerators has motivated the development of passive cold storage devices (PCDs), containers that keep vaccines cold without using an active energy source. With different PCDs under development, manufacturers,...
HPV vaccination is recommended in France for girls aged 14 and for those aged 15–23 before sexual debut or who have become sexually active within the previous year. The first aim was to describe vaccination practice among 14–23-year-old girls visiting a general practitioner. A second objective was to investigate factors associated with starting vaccination among girls aged 14–18, in particular the...
Two human papillomavirus vaccines were licenced in 2006/2007 for cervical cancer prevention. National vaccination programmes for schoolgirls were subsequently introduced in some European countries, North America and Australia. To understand factors influencing vaccine uptake and to inform the development of appropriate UK educational materials, we aimed to synthesise evidence of girls’ and parents’...
Tuberculosis remains a major global health challenge despite extensive vaccination schemes with the current live vaccine, Bacillus Calmette–Guérin. Tuberculosis vaccine research has been hampered by a scarcity of animal models which replicate human disease and are suitable for large-scale studies. We have shown recently that Mycobacterium marinum, a close relative of Mycobacterium tuberculosis, causes...
In order to evaluate the immunogenicity, safety and tolerability of influenza vaccination in children with inborn errors of metabolism (IEMs), we enrolled 20 patients with IEMs at risk of decompensation (14 males; mean age±SD, 8.5±3.9years) and 20 healthy age- and gender-matched controls. Four weeks after vaccination, seroconversion rates were 75–85% and seroprotection rates 85–95%, with high geometric...
Fish iridoviruses cause systemic diseases with high morbidity and mortality in various species of wild and farm-raised fish, resulting in severe economic losses, and no large-scale protective vaccine program or therapy is currently available. In this study, we expressed a recombinant major capsid protein (rMCP) of rock bream iridovirus in transgenic rice callus. The rMCP in lyophilized rice callus...
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