A rapid quantitative microenzyme-linked immunosorbent assay for the detection of immunoglobulin G antibodies to tetanus toxoid is described. The assay is performed in 2.5 h and detects antibody levels of between 0.1 and 6 U/ml. Quantitation of the antibody concentration is unique in that multiple serum dilutions are tested on a single patient, the results are plotted as an antibody dilution cur...

Riley, Jean M. (U.S. Army Biological Laboratories, Fort Detrick, Frederick, Md.), William C. Patrick, III, and William E. Campbell, Jr. Estimation of titer of Venezuelan equine encephalomyelitis virus preparations from a single-dilution assay. J. Bacteriol. 85:1256-1260. 1963.-When suspensions of Venezuelan equine encephalomyelitis (VEE) virus were injected intracerebrally into groups of mice, ...

The indicator-dilution technique has recently been applied to the study of the coronary circulation. One of the methods which have been proposed is the estimation of coronary blood flow from dilution curves sampled from the right ventricle after the injection of radio-iodinated human serum albumin into the left ventricle or into a catheter "wedged" in a branch of the pulmonary artery (1). Anoth...