[Differential diagnosis between toxoplasmosis and leptospirosis of 26 Mexican cases with posterior uveitis].

26 patients with active posterior uveitis were studied by methodologies for the confirmation of leptospirosis. ELISA-IgG was positive in 10 patients and MAT in 21. Leptospiras were observed in blood and urine. The results suggest that posterior uveitis may be caused by pathogenic leptospiras.