COMPARATIVE DISTRIBUTION OF A STIMULATORY FACTOR FOR STREPTOCOCCUS FAECALIS R AND THE MONKEY ANTIANEMIA FACTOR

Abstract

Recently, the existence of a heat-labile substance in liver and milk which greatly stimulates the growth of Streptococcus jueculis R was reported (1). The effect of certain untreated natural supplements on the growth of Streptococcus juecalis was originally investigated to determine whether the stimulatory factor for this organism could be identical with a heat-labile factor essential for normal growth and blood composition in the monkey (2-5) and thus provide a rapid assay method for this factor.