On the Bactericidal Effect exerted by Human Blood on certain species of Pathogenic Micro-Organisms and on the Antibactericidal Effects obtained by the addition to the blood in vitro of Dead Cultures of the Micro-Organisms in question

Abstract

The fact that the blood of ordinary laboratory animals exerts a very marked bactericidal effect upon the Bacillus typhosus and the Spirillum cholerae asiaticae, while it exerts little or no effect upon the Staphylococcus and Streptococcus pyogenes, has hardly received the attention which it would seem to merit in view of the circumstance that these facts involve the important problem as to whether the blood exerts its bactericidal action upon pathogenic organisms generally, or only upon certain species of such micro-organisms.