“…Hill (15), in 1919, saw at least three families in which two or more children had nephritis at the same time following illnesses characterized by sore throat. Perhaps the most famous outbreak in a family group is that described by Ernstene and Robb (16 (20) observed an acute respiratory disease in four siblings; two of these developed signs of nephritis, one exhibited hematuria and the fourth was normal. Kilpatrick (21) observed three girls from the same family who were admitted to the hospital with acute nephritis in October, 1944.…”