TL;DR: A microtechnique (modified Takatsy) is described which can be applied to complement fixation, hemagglutination, hemagenesis inhibition and metabolic inhibition tests andComparative data obtained with the micro- and standard systems establish the reliability and validity of the microsystem.
Abstract: A microtechnique (modified Takatsy) is described which can be applied to complement fixation, hemagglutination, hemagglutination inhibition and metabolic inhibition tests. The system permits an 8-fold saving of reagents and rapid performance of microdilutions. The specific methods and modifications of equipment necessary to obtain reliable results are presented in detail. Comparative data obtained with the micro- and standard systems establish the reliability and validity of the microsystem.
TL;DR: A method for improving the original Galton microtechnique for detecting leptospiral antibodies has been developed and it is indicated that agreement between the original MA test and this new method exceeded 94%, whereas the originalGaltonmicrotechnique and the originalMA test agreed in a maximum of 77% of the tests.
Abstract: A method for improving the original Galton microtechnique for detecting leptospiral antibodies has been developed. Simultaneous titrations were performed on 281 animal and human sera and 17 hyperimmune sera with the microscopic agglutination (MA) test and the improved microtechnique. Reproducibility of the improved microtechnique was determined independently on 65 animal sera by two laboratory sections. The results obtained by comparing positive test data from human and animal sera indicated that agreement between the original MA test and this new method exceeded 94%, whereas the original Galton microtechnique and the original MA test agreed in a maximum of 77% of the tests. This study indicates that the results obtained with the improved microtechnique are much more comparable to results obtained with the original MA test than are those obtained with the original Galton microtechnique.