Cardiff's tropical disease: cercarial dermatitis.

INTRODUCTION ROATH LAKE is a large artificial lake situated in one of the municipal parks of Cardiff, and well known as a pleasure-spot, for angling, boating, and for its waterfowl." Roath Park, in which. the lake is situated, is also noted for its recreational facilities and splendid botanical gardens, which include one of the finest rose gardens in Great Britain. An attraction of the lake up until 1949, now largely forgotten, was the bathing pool in its south-east corner, adjacent to the dam. The changing-cubicles and spring-boards have been removed, and the concrete embankment which formerly was the edge of the pool is now used for angling contests. The purpose of this paper is to review the investigation into, and discovery of, the cause of a health hazard occurring at the bathing pool in 1928.