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polysaccharide/fiebre
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Salmonella enterica serovar Typhi O:1,9,12 polysaccharide-protein conjugate as a diagnostic tool for typhoid fever.
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Serologic tests play an important role in diagnosis of typhoid fever. In an effort to develop a more defined reagent for these tests, purified Salmonella enterica serovar Typhi (ST) O:1,9,12 polysaccharide was conjugated to human serum albumin (HSA), and the conjugate was purified
A mass vaccination campaign targeting adults and children to prevent typhoid fever in Hechi; expanding the use of Vi polysaccharide vaccine in southeast China: a cluster-randomized trial.
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BACKGROUND
One of the goals of this study was to learn the coverage, safety and logistics of a mass vaccination campaign against typhoid fever in children and adults using locally produced typhoid Vi polysaccharide (PS) and group A meningococcal PS vaccines in southern China.
METHODS
The vaccination
[Isolation of a highly purified capsular polysaccharide from Salmonella enterica serovar Typhi (Salmonella typhi)--Vi-antigen and its use in serological diagnosis of typhoid fever].
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For use in differential diagnostics of typhoid fever, samples of the capsular polysaccharide from Salmonella enterica serovar Typhi (usually named Vi-antigen) were isolated and characterized by physicochemical and serological methods. It was shown that only the sample of Vi-antigen with the minimal
Use of Typhoid Vi-Polysaccharide Vaccine as a Vaccine Probe to Delineate Clinical Criteria for Typhoid Fever
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Blood cultures (BCs) detect an estimated 50% of typhoid fever cases. There is need for validated clinical criteria to define cases that are BC negative, both to help direct empiric antibiotic treatment and to better evaluate the magnitude of protection conferred by typhoid vaccines. To derive and
The feasibility of a school-based VI polysaccharide vaccine mass immunization campaign in Hue City, central Vietnam: streamlining a typhoid fever preventive strategy.
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We report the coverage, safety, and logistics of a school-based typhoid fever immunization campaign that took place in Hue City, central Vietnam; a typhoid fever endemic area. A cluster-randomized evaluation-blinded controlled trial was designed where 68 schools (cluster) were randomly allocated the
Vi capsular polysaccharide-protein conjugates for prevention of typhoid fever. Preparation, characterization, and immunogenicity in laboratory animals.
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The Vi has proven to be a protective antigen in two double masked, controlled clinical trials in areas with high rates of typhoid fever (approximately 1% per annum). In both studies the protective efficacy of the Vi was approximately 70%. Approximately 75% of subjects in these areas responded with a
Duration of Vi antibodies in participants vaccinated with Typhim Vi (Typhoid Vi polysaccharide vaccine) in an area not endemic for typhoid fever.
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After a single injection of Typhim Vi (typhoid Vi polysaccharide vaccine), serum antibody concentrations were monitored for 3 years in 37 adults who resided where typhoid fever was not endemic. Anti-Vi antibody concentrations declined progressively during the study, to levels that support the
Protracted fever with cellulitis-like reaction in pneumococcal polysaccharide-vaccinated children.
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Side effects of the 23-valent pneumococcal polysaccharide vaccine (PPV23) are regarded as mild and uncommon in adults. In our clinical experience, however, protracted fever with a cellulitis-like reaction after PPV23 vaccination is not rare in pediatric patients. We reviewed the records of 17
Development of a synthetic Vi polysaccharide vaccine for typhoid fever.
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Typhoid fever remains a serious public health problem with a high impact on toddlers and young children. Vaccines against the Vi capsular polysaccharide are efficacious against typhoid fever demonstrating that antibodies against Vi confer protection. The currently licensed Vi typhoid vaccines have
Antibody titer to group A streptococcal polysaccharide in rheumatic fever and rheumatic heart disease.
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Antibody to group A streptococcal polysaccharide (ASP) is the only antibody of cellular components which is now detectable in clinical practice. Streptococcal polysaccharide is known to have cross-immunity with the glycoprotein of human heart tissue, and has been discussed as a pathogenesis of
Polysaccharide mannan components of Candida albicans and Saccharomyces cerevisiae cell wall produce fever by intracerebroventricular injection in rats.
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The cell wall mannan components of Candida albicans and Saccharomyces cerevisiae produced hyperthermic responses when injected intracerebroventricularly at doses of 10 microg in rats. Indomethacin treatment (5 mg/kg subcutaneously) completely abolished these responses. Serum interferon-gamma, tumor
Efficacy of a locally produced, Chinese Vi polysaccharide typhoid fever vaccine during six years of follow-up.
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A locally produced Vi polysaccharide vaccine against typhoid fever was licensed in China following two placebo-controlled, efficacy trials conducted in the early 1990s in Baoying, Jiangsu Province, and Quan-zhou, Guangxi Province. The two trials each enrolled over 80,000 participants and followed
An outbreak of typhoid fever, Xing-An County, People's Republic of China, 1999: estimation of the field effectiveness of Vi polysaccharide typhoid vaccine.
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To evaluate the effectiveness of Vi polysaccharide vaccine (Vi vaccine) in preventing typhoid fever, an analysis was done of an outbreak of typhoid fever among students attending a middle school in the People's Republic of China, where Vi vaccine is licensed for use. Vi vaccine effectiveness was
Polysaccharide peptide from Coriolus versicolor induces interleukin 6-related extension of endotoxin fever in rats.
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OBJECTIVE
Polysaccharide peptide (PSP) extracted from the Coriolus versicolor mushroom is frequently suggested as an adjunct to the chemo- or radiotherapy in cancer patients. In a previous study we showed that PSP induced a tumour necrosis factor-α (TNF-α)-dependent anapyrexia-like response in rats.
[Enzyme-linked immunosorbent assay (ELISA) for detection of antibodies to Salmonella Typhi lipopolysaccharide O and capsular polysaccharide Vi antigens in persons from outbreak of typhoid fever].
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BACKGROUND
The laboratory diagnosis of typhoid fever is dependent upon either isolation of S. Typhi from a clinical sample or the detection of raised titers of serum antibodies in the Widal test or the passive hemagglutination assay (PHA). In this study we evaluated the usefulness of ELISA for
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