Trichophyton equinumvar.Autotrophicum; Its characteristics and geographical distribution

Human onychomycosis caused by Trichophyton equinum transmitted from a racehorse

“…6 T. equinum often causes ringworm in horses, and papular and crusting lesions can also be observed. 4 It is not known how widely T. equinum has been spread among humans. There are only a few single reports in the literature.…”

“…The T. equinum thallus appears as a deep yellow pigment on the underside which may be visible from above as a yellow perimeter. 4 The centre of the thallus is frequently reddish and may become deep orange-brown to dark brown as the thallus ages. T. equinum var.…”

“…equinum. 3,4 Later samples were taken with a toothbrush from the shoulder area of the racehorse. Culture of these samples gave a similar growth of T. equinum.…”