A Study of Variation in Hemolytic Streptococci from Scarlet Fever and Erysipelas: II. Comparative Virulence, Carbohydrate Fermentation, Toxin Production of the S and R Strains. Protective Power of S and R Vaccines. Reversion.
Spicer
S
S
Bureau of Laboratories, Department of Health, New York City.
Bloom
E L
EL
Gonshorek
M F
MF