Between the 24th of June and the 6th of July 2005, nine men came to Fort-de-France emergency department (Martinique, French West Indies) with more or less pronounced pulmonary symptoms associated in two cases with skin lesions. Three weeks before these nine men performed work in a deserted house. The diagnosis of histoplasmosis was based on pulmonary sample mycological analysis (direct examination and culture), molecular biology and serological tests. Interrogatory and environmental investigations on the presumed place of exposition to H. capsulatum var. capsulatum spores allowed confirming how and where contamination took place.