Rizzo G, Jatta E
Ann Sclavo. 1975 May-Jun;17(3):319-23.
During an epidemiological inquiry in a infantile community it was founded the 22.8% of 83 children was carrier of toxigen C. diphtheriae and two adults on 15 were carriers of non toxigen C. diphtheriae. The isolated species respectively from children and adults were of different phagic type.