Epidemiology of contact dermatitis in Geneva (1000 cases).

Results concerning 1,000 cases of contact dermatitis with positive patch tests are presented. The allergens which are responsible for about 50% of our cases are: turpentine, nickel, hexavalent chromium and organic mercurial compounds. These results are compared with those of other countries. As in the industrial world there should be information given to the general public to reduce the incidence of contact dermatitis.