Coronavirus disease 2019 mass vaccination has led to drastic reduction in hospitalizations and mortality. A number of case reports have emerged reporting coronavirus infection within days following vaccination. There is a need understand development immune antibodies the early post-vaccination period. prospective analysis immunoglobulin M G kinetics was conducted during first 28 d with either C...

Cryoprecipitation was observed in defibrinated serum from Schistosoma japonicum-infected rabbits. Ouchterlony immunodiffusion, sodium dodecyl sulfate-polyacrylamide gels, and anti-cryoprecipitate antiserum demonstrated the presence of immunoglobulin G (IgG), IgM, C3, fibrinogen, and an alpha-macroglobulin. Parasite antigen was not detected. IgG and IgM from pooled cryoprecipitates failed to rea...

The functionality and aging mechanism of antibodies physisorbed onto cellulosic films was investigated. Blood grouping antibodies immunoglobulin G (IgG) and immunoglobulin M (IgM) were adsorbed onto smooth cellulose acetate (CAF) and regenerated cellulose (RCF) films. Cellulose films and adsorbed IgG layers were characterized at the air and liquid interface by X-ray and neutron reflectivity (NR...

Lymphocytes from a patient with Waldenström's macroglobulinemia and known anti-immunoglobulin IgG activity of serum monoclonal IgM and lymphocytes from selected patients with chronic lymphocytic leukemia were studied by the membrane immunofluorescence procedure. Freshly drawn lymphocytes were shown to bear simultaneously mu, gamma, [unk], and lambda chain determinants. Experiments combining red...

OBJECTIVE Transplanted porcine hearts are hyperacutely rejected by human immunoglobulin M antibodies against a porcine vascular endothelial molecule, galactose alpha-1,3-galactose, with ensuing human complement activation and membrane attack complex deposition. It is unclear, however, whether porcine valve endothelium triggers a similar immune response. We sought to investigate whether fresh po...

The A60 antigen complex is a Mycobacterium bovis (BCG) highly immunodominant antigen containing both B and T-cell epitopes. Clinical-serological studies show that elevated anti-A60 titres are present during tuberculosis. We wished to analyze in detail antibody responses against A60 components during the course of tuberculosis. A mixed longitudinal study was designed including individuals at the...