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To the Editor.—
I was interested to read in the Archives Dr. Borelli's comments (106:419, 1972) on my paper concerning chromomycosis, which appeared in the November 1971 issue (104:476, 1971). There are, however, some points that I must clarify.Firstly, the number of positive cultures related only to the 14 cases reported. Of the 19 mentioned, ten cultures were obtained. In eight, Fonsecaea (Hormodendrum) pedrosoi was isolated; in one, Cladosporium carrionii was isolated; and C trichoides was isolated from one patient with cerebral chromomycosis. The remaining nine cultures produced no growth. Of 29 patients diagnosed so far in this department, F pedrosoi has been isolated from 18. Cultures from all cases were carried out at ambient temperature and 37 C here in the Department of Microbiology, University of Natal, and also in the Department of Medical Mycology, St. John's Hospital for Diseases of the Skin, London, by Yvonne Clayton,