RT Journal Article SR Electronic T1 Leptospirosis—a diagnostic problem and an industrial hazard JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 165 OP 167 VO 31 IS 224 A1 Derek Wilson A1 Ronald Wetson YR 1981 UL http://bjgp.org/content/31/224/165.abstract AB Three cases of human leptospirosis occurred on a small dairy farm at the foot of the Black Mountains in Powys. We describe the clinical course of these three patients and consider the sources of infection and the industrial implications.