Study of Tinea Capitis in Philadelphia Using Case and Control Groups

DERMATOPHYTOSIS of the scalp is well described in the medical literature in re- gard to its clinical manifestations and the identification of causative organisms (1).Sur- veys of population groups in the United States (2-8), Canada (9-11), and Europe and Africa (1) have also been reported.Such surveys contribute information on the occurrence and dis- tribution of the infection, but provide a limited basis for conclusions regarding etiologically related factors or the modes of transmission.Clinical opinions are available, too, (2-16), but