Considerable scientific and political interest has been expressed, parallelling public concern about the effects of chemicals on the immune system and the implications of those effects for health. Coupled with speculation about the magnitude and extent of the problem is discussion of needs for predictive testing and regulatory control measures. The first international seminar on the immunological system as a target for toxic damage was held in Luxembourg in 1984. It was organized by the International Programme on Chemical Safety (United Nations Environment Programme-International Labour...