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Kidney structure from control and infected hamsters. Microscopic observations of kidney sections stained with periodic acid Schiff obtained from control animals (A) and animals infected with L. interrogans (B), L. mayottensis (C), or L. borgpetersenii (D) 4 weeks after infection. Atrophic tubules (arrow), hyaline casts (+), and cellular infiltrates (*) are indicated. Scale bars: 150 μm. Macroscopic observations of kidneys are shown in inserts.
