Abstract

Infectious warts are caused by a member of the papova group of DNA viruses. This virus may produce a variety of clinically different lesions, e. g. the ‘common’ warts seen as rough papules usually on the hands, plane or flat warts, plantar warts which may be grouped into mosaic-like clusters, and anogenital condylomata. Some of these clinical types, particularly the mosaic warts of the feet, seem to be more persistent and difficult to treat.