"Swimmers' itch" (cercarial dermatitis).

Cercarial dermatitis is a parasitic disease affecting the skin. It may be encountered in fresh or salt water and is global in its distribution. It is a potential economic hazard to persons who work in aquatic environments and to the tourist industry.

Smoking and respiratory illness in military recruits.

The effect of smoking on respiratory illness was investigated at a naval recruit camp. All recruits entering training during an 11-month period, beginning in February 1971, were included in the study. Questionnaires in regard to smoking habits were administered on arrival and during the last week of training.