On the "phenomenon of redemption" in scarlet fever

Under this name, Schn1h and Charlton described (Zschr. F. Kinghlk., Bd. 27) the following phenomenon: if a scarlet fever patient is injected into the skin, during the development of a rash, 1 to. From. serum recovering from scarlet fever or a healthy person, then after a few hours at the injection site, the rash disappears in a space with a diameter of 3-5 centimeters. and no longer appears.