[Indigenous Legionnaires' disease. Importance of clinical symptoms (author's transl)].

The first case of legionnaires' disease indigenous to France is reported. Since rapid bacteriological and/or serological diagnostic procedures are lacking, the disease should be suspected clinically in patients presenting with febrile pneumonia typically associated with neurological, digestive and renal disorders. Antibiotic treatment with erythromycin should be initiated as early as possible.