Enfermedades simuladas y acompa？antes de leptospirosis

400 patients were studied by microscopic videorecording in dark field and mat. the videorecording in blood was positive in 93 % and, in urine, in 95 %. of the total of cases, 96 % presented antibody titers. the wide symptomatic range gave origin to more than 50 different diagnoses in the studied patients, who were confirmed that they suffered from chronic leptospirosis by the diverse tests made.