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Recent items - Clinical and Vaccine Immunology

Lsr2 of Mycobacterium leprae and Its Synthetic Peptides Elicit Restitution of T Cell Responses in Erythema Nodosum Leprosum and Reversal Reactions in Patients with Lepromatous Leprosy [Clinical Immunology]
26/04/2013 20:06
The Lsr2 protein of Mycobacterium leprae and its synthetic peptides have been shown to elicit lymphoproliferation and gamma interferon (IFN-) release by peripheral blood mononuclear cells (PBMCs) of patients with lepromatous leprosy (M. Chaduvula, A
Development of Immunochromatography-Based Methods for Detection of Leptospiral Lipopolysaccharide Antigen in Urine [Diagnostic Laboratory Immunology]
26/04/2013 20:06
Leptospirosis is an infectious disease caused by the spirochete bacteria Leptospira spp. and is commonly found throughout the world. Diagnosis of leptospirosis performed by culture and microscopic agglutination tests is laborious and time-consuming.
Development and Evaluation of a Trivalent Riemerella anatipestifer-Inactivated Vaccine [Vaccines]
26/04/2013 20:06
Riemerella anatipestifer infections cause major economic losses in the duck industry. In this study, a trivalent inactivated vaccine of R. anatipestifer, including strains CH3 (serotype 1), NJ3 (serotype 2), and HXb2 (serotype 10), was developed. An
Hepatitis C Virus (HCV)-Related Cryoglobulinemia: Cryoglobulin Type and Anti-HCV Profile [Clinical Immunology]
26/04/2013 20:06
Cryoglobulin characteristics in chronic hepatitis C (CHC) might be of importance for knowing more about the pathogenesis and treatment of the disease. We aimed to investigate the relationship between cryoglobulin types and their specificity against
Circulating Biomarkers of Pulmonary and Extrapulmonary Tuberculosis in Children [Clinical Immunology]
26/04/2013 20:06
Tuberculosis (TB) in children is not only more likely to cause more severe disease than that seen in adults, it is also more likely to be extrapulmonary. Moreover, pediatric TB is very difficult to diagnose and suffers from a lack of understanding o
Identification of In Vivo-Induced Bacterial Proteins during Human Infection with Salmonella enterica Serotype Paratyphi A [Clinical Immunology]
26/04/2013 20:06
Salmonella enterica serotype Paratyphi A is a human-restricted pathogen and the cause of paratyphoid A fever. Using a high-throughput immunoscreening technique, in vivo-induced antigen technology (IVIAT), we identified 20 immunogenic bacterial prote
Vaccination of Piglets up to 1 Week of Age with a Single-Dose Mycoplasma hyopneumoniae Vaccine Induces Protective Immunity within 2 Weeks against Virulent Challenge in the Presence of Maternally Derived Antibodies [Vaccines]
26/04/2013 20:06
Enzootic pneumonia, resulting from infection with Mycoplasma hyopneumoniae, is of considerable economic importance to the pig industry and normally is controlled through active vaccination of piglets. We have demonstrated that administration of an i
A Conserved Region of Leptospiral Immunoglobulin-Like A and B Proteins as a DNA Vaccine Elicits a Prophylactic Immune Response against Leptospirosis [Vaccines]
26/04/2013 20:06
The leptospiral immunoglobulin-like (Lig) proteins LigA and LigB possess immunoglobulin-like domains with 90-amino-acid repeats and are adhesion molecules involved in pathogenicity. They are conserved in pathogenic Leptospira spp. and thus are of in
Antibody Responses to Natural Rattlesnake Envenomation and a Rattlesnake Toxoid Vaccine in Horses [Clinical Immunology]
26/04/2013 20:06
Antivenom antibody titers following administration of rattlesnake venom for antivenom production in horses are well documented; however, antivenom antibody titers following natural rattlesnake envenomation in horses are not. Antibody titers produced
Association of {gamma}{delta} T Cells with Disease Severity and Mortality in Septic Patients [Clinical Immunology]
26/04/2013 20:06
Gamma-delta T cells are the most abundant of all epithelial-resident lymphocytes and are considered a first line of defense against pathogens in the mucosa. Our objective was to confirm the reduction in T cell subsets and its relationship with mort
A Prime-Boost Strategy Using the Novel Vaccine Candidate, LemA, Protects Hamsters against Leptospirosis [Vaccines]
26/04/2013 20:06
Toward developing an effective vaccine capable of conferring heterologous protection, the putative lipoprotein LemA, which presents an M3 epitope similar to that of Listeria, was evaluated as a vaccine candidate in the hamster model of leptospirosis
Combined Administration of MF59-Adjuvanted A/H5N1 Prepandemic and Seasonal Influenza Vaccines: Long-Term Antibody Persistence and Robust Booster Responses 1 Year after a One-Dose Priming Schedule [Vaccines]
26/04/2013 20:06
Having previously demonstrated the feasibility of administering A/H5N1 and seasonal influenza vaccine antigens in an MF59-adjuvanted tetravalent formulation, we now report on long-term antibody persistence and responses to a booster dose of a combin
Surprisingly Low Seroprevalence of Burkholderia pseudomallei in Exposed Healthy Adults in the Darwin Region of Tropical Australia Where Melioidosis Is Highly Endemic [Clinical Immunology]
26/04/2013 20:06
In the Darwin region of Australia where melioidosis is highly endemic, only 11/354 (3%) healthy residents were seropositive by indirect hemagglutination assay, despite extensive exposure to Burkholderia pseudomallei. None developed melioidosis, but
Septic Shock after Seasonal Influenza Vaccination in an HIV-Infected Patient during Treatment with Etanercept for Rheumatoid Arthritis: a Case Report [Case Reports]
26/04/2013 20:06
Anti-tumor necrosis factor alpha (anti-TNF-α) is used in the treatment of rheumatic diseases not responsive to first-line regimens. Data on the safety of anti-TNF-α in HIV-infected patients are scarce and conflicting. We describe a case
Interleukin-21 Overexpression Dominates T Cell Response to Epstein-Barr Virus in a Fatal Case of X-Linked Lymphoproliferative Syndrome Type 1 [Case Reports]
26/04/2013 20:06
Interleukin-21 (IL-21) is a cytokine whose actions are closely related to B cell differentiation into plasma cells as well as to CD8+ cytolytic T cell effector and memory generation, influencing the T lymphocyte response to different viruses. X-link
Editorial Board [Masthead]
26/04/2013 20:06
Immunization with Pneumococcal Polysaccharide Serotype 3 and Lipopolysaccharide Modulates Lung and Liver Inflammation during a Virulent Streptococcus pneumoniae Infection in Mice [Vaccines]
26/04/2013 20:06
Vaccination reduces morbidity and mortality from pneumonia, but its effect on the tissue-level response to infection is still poorly understood. We evaluated pneumonia disease progression, acute-phase response, and lung gene expression profiles in m
Linkage between Anaplasma marginale Outer Membrane Proteins Enhances Immunogenicity but Is Not Required for Protection from Challenge [Vaccines]
26/04/2013 20:06
The prevention of bacterial infections via immunization presents particular challenges. While outer membrane extracts are often protective, they are difficult and expensive to isolate and standardize and thus are often impractical for development an
Evaluation of a Rapid Device for Serological Diagnosis of Leishmania infantum Infection in Dogs as an Alternative to Immunofluorescence Assay and Western Blotting [Diagnostic Laboratory Immunology]
26/04/2013 20:06
In this study, we compared a rapid immunochromatographic test (Speed Leish K; BVT Groupe Virbac, La Seyne sur Mer, France) with an indirect immunofluorescence assay (IFAT) and Western blotting (WB) for the detection of Leishmania infantum antibodies
Role of Gluten Intake at the Time of Hepatitis B Virus Vaccination in the Immune Response of Celiac Patients [Vaccines]
26/04/2013 20:06
Some reports have demonstrated an inadequate response to hepatitis B vaccination in patients affected by celiac disease. The aim of our study was to evaluate hepatitis B vaccination response in relation to gluten exposure status in patients with cel
Evaluation of the Safety and Immunogenicity of a Candidate Tuberculosis Vaccine, MVA85A, Delivered by Aerosol to the Lungs of Macaques [Vaccines]
26/04/2013 20:06
Tuberculosis (TB) is a reemerging disease. The only available vaccine, Mycobacterium bovis BCG, is delivered intradermally and confers highly variable efficacy against pulmonary disease. There is an urgent need for improved vaccination strategies. M
Development and Optimization of a Novel Assay To Measure Neutralizing Antibodies against Clostridium difficile Toxins [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Clostridium difficile produces two major virulence toxins, toxin A (TcdA) and toxin B (TcdB). Antitoxin antibodies, especially neutralizing antibodies, have been shown to be associated with a lower incidence of C. difficile infection (CDI) recurrenc
Impaired Lymphocyte Reactivity Measured by Immune Function Testing in Untransplanted Patients with Cirrhosis [Diagnostic Laboratory Immunology]
25/03/2013 20:15
The immune function test is an integrated measure of total mitogen-inducible CD4+ T cell metabolic activity in the peripheral blood, and it is used to guide the dosing of immunosuppressive medications after solid organ transplantation. Recently, low
Identification of a New Tuberculosis Antigen Recognized by {gamma}{delta} T Cell Receptor [Clinical Immunology]
25/03/2013 20:15
The immune protection initiated by T cells plays an important role in mycobacterial infection. The T cells activated by Mycobacterium tuberculosis-derived nonpeptidic, phosphorylated biometabolites (phosphoantigens) provide only partial immune pro
Development of a High-Throughput Assay To Measure the Neutralization Capability of Anti-Cytomegalovirus Antibodies [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Infection by human cytomegalovirus (CMV) elicits a strong humoral immune response and robust anti-CMV antibody production. Diagnosis of virus infection can be carried out by using a variety of serological assays; however, quantification of serum an
Cell-Mediated and Humoral Immune Responses after Immunization of Calves with a Recombinant Multiantigenic Mycobacterium avium subsp. paratuberculosis Subunit Vaccine at Different Ages [Vaccines]
25/03/2013 20:15
Neonates and juvenile ruminants are very susceptible to paratuberculosis infection. This is likely due to a high degree of exposure from their dams and an immature immune system. To test the influence of age on vaccine-induced responses, a cocktail
Immunity to Hepatitis B Virus (HBV) Infection Two Decades after Implementation of Universal Infant HBV Vaccination: Association of Detectable Residual Antibodies and Response to a Single HBV Challenge Dose [Vaccines]
25/03/2013 20:15
Most persons who receive hepatitis B vaccine during infancy will have a level of antibody to hepatitis B surface antigen (anti-HBsAg) of <10 IU/liter 10 to 15 years later; however, most will demonstrate immune memory by an anamnestic response to
Regional Immune Response to Immunization with Escherichia coli O157:H7-Derived Intimin in Cattle [Vaccines]
25/03/2013 20:15
Escherichia coli O157:H7 is an enteric pathogen of animals and humans that can result in deadly sequelae. Cattle are asymptomatic carriers and shedders of the bacteria and serve as an important reservoir of human infection. E. coli O157:H7 colonizes
Evaluation of a Mycobacterium avium subsp. paratuberculosis leuD Mutant as a Vaccine Candidate against Challenge in a Caprine Model [Vaccines]
25/03/2013 20:15
Johne's disease (JD) is prevalent worldwide and has a significant impact on the global agricultural economy. In the present study, we evaluated the protective efficacy of a leuD (leud) mutant and gained insight into differential immune responses aft
Adjuvanticity of a Recombinant Calreticulin Fragment in Assisting Anti-{beta}-Glucan IgG Responses in T Cell-Deficient Mice [Vaccines]
25/03/2013 20:15
Polysaccharide-encapsulated fungi are the chief source of diseases in immunocompromised hosts such as those infected with human immunodeficiency virus or neutropenia patients. Currently available polysaccharide-protein conjugate vaccines are mainly
Value of a Quality Assessment Program in Optimizing Cryopreservation of Peripheral Blood Mononuclear Cells in a Multicenter Study [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Cryopreservation of peripheral blood mononuclear cells (PBMC) allows assays of cellular function and phenotype to be performed in batches at a later time on PBMC at a central laboratory to minimize assay variability. The Multicenter AIDS Cohort Stud
Development of an Immunochromatographic Assay Based on Dense Granule Protein 7 for Serological Detection of Toxoplasma gondii Infection [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Dense granule antigen proteins derived from Toxoplasma gondii (TgGRAs) are potential antigens for the development of diagnostic tools. TgGRA7 and TgGRA14 were detected in the peritoneal fluid of T. gondii-infected mice, suggesting that TgGRAs may be
Reference Ranges for Lymphocyte Subsets among Healthy Hong Kong Chinese Adults by Single-Platform Flow Cytometry [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Race, age, sex, and environmental conditions have significant impacts on lymphocyte subset values. It is important to establish the local reference ranges from healthy and non-HIV-positive adults in the local population for clinical decision making.
Novel Aspects of the Z and R3 Antigens of Streptococcus agalactiae Revealed by Immunological Testing [Clinical Immunology]
25/03/2013 20:15
Group B streptococci (GBS) are important human and bovine pathogens which can be classified by a variety of phenotype- and gene-based techniques. The capsular polysaccharide and strain-variable, surface-anchored proteins are particularly important p
Genomic Sequencing Reveals Mutations Potentially Related to the Overattenuation of a Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus [Clinical Immunology]
25/03/2013 20:15
Highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) continues to evolve when serially passaged in Marc-145 cells. In this study, we analyzed the genomic and antigenic variants of HP-PRRSV strain JXA1 during in vitro pass
Hemin-Binding Proteins as Potent Markers for Serological Diagnosis of Infections with Bartonella quintana [Diagnostic Laboratory Immunology]
25/03/2013 20:15
It is difficult to distinguish infections with different Bartonella species using commercially available immunofluorescence (indirect immunofluorescent antibody [IFA]) assay kits. To identify appropriate proteins for serodiagnosis of Bartonella quin
Mycobacterium bovis DNA Detection in Colostrum as a Potential Indicator of Vaccination Effectiveness against Bovine Tuberculosis [Vaccines]
25/03/2013 20:15
Bovine tuberculosis (bTB) remains a problem on many dairy farms in Mexico, as well as a public health risk. We previously found a high frequency of Mycobacterium bovis DNA in colostrum from dairy cows using a nested PCR to detect mpb70. Since there
Serotype Sensitivity of a Lateral Flow Immunoassay for Cryptococcal Antigen [Diagnostic Laboratory Immunology]
25/03/2013 20:15
To meet the needs of a global community, an immunoassay for cryptococcal antigen (CrAg) must have high sensitivity for CrAg of all major serotypes. A new immunoassay for CrAg in lateral flow format was evaluated and found to have a high sensitivity
Comparison of Galactomannan Enzyme Immunoassay Performance Levels when Testing Serum and Plasma Samples [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Diagnostic galactomannan (GM) enzyme immunoassay (EIA) testing is formally validated only for serum, though in practice, plasma is occasionally tested. It is assumed, but not confirmed, that results will be comparable to those for serum. GM EIA when
Editorial Board [Masthead]
25/03/2013 20:15
Testing for Antireticulin Antibodies in Patients with Celiac Disease Is Obsolete: a Review of Recommendations for Serologic Screening and the Literature [Minireviews]
25/03/2013 20:15
Celiac disease (CD) is an autoimmune disorder that occurs in genetically susceptible individuals of all ages and is triggered by immune response to gluten and related proteins. The disease is characterized by the presence of HLA-DQ2 and/or -DQ8 hapl
Natural Killer Cells and Antifungal Host Response [Minireviews]
25/03/2013 20:15
As a result of improved experimental methodologies and a better understanding of the immune system, there is increasing insight into the antifungal activity of natural killer (NK) cells. Murine and human NK cells are able to damage fungi of differen
Unusual Patterns of IgG Avidity in Some Young Children following Two Doses of the Adjuvanted Pandemic H1N1 (2009) Influenza Virus Vaccine [Vaccines]
25/03/2013 20:15
During the 2009-2010 H1N1 influenza pandemic, an adjuvanted monovalent vaccine containing ~25% of the normal antigen dose and AS03 adjuvant was widely used in Canada. This vaccine was found to be well-tolerated and immunogenic in young children (D.
Enzyme-Linked Immunosorbent Assay Using Recombinant SAG1 Antigen To Detect Toxoplasma gondii-Specific Immunoglobulin G Antibodies in Human Sera and Saliva [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Serologic detection of Toxoplasma gondii IgG antibodies is widely accepted as a means to determine immune status and susceptibility to Toxoplasma infection during pregnancy. However, current commercial kits present some drawbacks, such as a requirem
Outer Surface Protein C Peptide Derived from Borrelia burgdorferi Sensu Stricto as a Target for Serodiagnosis of Early Lyme Disease [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Current serodiagnostic assays for Lyme disease are inadequate at detecting early infection due to poor sensitivity and nonspecificity that arise from the use of whole bacteria or bacterial proteins as assay targets; both targets contain epitopes tha
Assessment of a Protein Cocktail-Based Skin Test for Bovine Tuberculosis in a Double-Blind Field Test in Cattle [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Bovine tuberculosis (bTB) is a worldwide zoonosis caused mainly by Mycobacterium bovis. The traditional diagnostic method used often is the tuberculin skin test, which uses bovine purified protein derivatives (PPD-B). However, it is difficult to mai
A Single Electroporation Delivery of a DNA Vaccine Containing the Hemagglutinin Gene of Asian H5N1 Avian Influenza Virus Generated a Protective Antibody Response in Chickens against a North American Virus Strain [Vaccines]
25/03/2013 20:15
Protection against the avian influenza (AI) H5N1 virus is suspected to be mainly conferred by the presence of antibodies directed against the hemagglutinin (HA) protein of the virus. A single electroporation delivery of 100 or 250 μg of a DNA vac
IgG4 Detection of Echinococcus granulosus Paramyosin Is a Useful Diagnostic Test for Human Hydatidosis [Diagnostic Laboratory Immunology]
25/03/2013 20:15
Hydatidosis is a public health problem in many parts of the world, and improvement in diagnosis of the disease is still being pursued. Protoscoleces of Echinococcus granulosus were isolated from hydatid cysts collected from naturally infected sheep
Identification of Allergenic Component Tyr p 8 from Tyrophagus putrescentiae and Cross-Reactivity with Der p 8 [Clinical Immunology]
25/03/2013 20:15
Group 8 mite allergens exhibit sequence homology to glutathione S-transferases (GSTs), such as that from Dermatophagoides pteronyssinus (Der p 8). GSTs have been identified as important allergens in studies of allergens from house dust mites, cockro
Long-Term Immunogenicity of the Pandemic Influenza A/H1N1 2009 Vaccine among Health Care Workers: Influence of Prior Seasonal Influenza Vaccination [Vaccines]
25/03/2013 20:15
Health care workers (HCWs) are at great risk of influenza infection and transmission. Vaccination for seasonal influenza is routinely recommended, but this strategy should be reconsidered in a pandemic situation. Between October 2009 and September 2