Use of Paramecia for Studying Toxins and Antitoxins (Measles, Scarlet Fever and Diphtheria).

Abstract

These experiments show that paramecia can be used to determine toxin production of certain bacteria (diphtheria bacillus, measles diplococcus, scarlet fever streptococcus) in a crude way only because the toxins are not sufficiently potent to be diluted, but that paramecia may be helpful in determining the strength of antitoxins.