Tinea faciei caused by Microsporum canis in a newborn.

A case of tinea faciei caused by Microsporum canis in a 14-day-old infant is reported. The incubation period was seen to be 1 week. This was a familial infection which also affected the infant's grandmother and their pet cat and dog. Topical treatment with clotrimazole controlled the infection in the baby. A review of 14 cases (including our own) of dermatophytosis in newborn infants reported in the Japanese literature showed that newborn infants might be infected by several of these agents.