The document discusses Leptospirosis nephropathy. It is a zoonotic bacterial infection caused by Leptospira interrogans. Renal involvement is a prominent feature and can cause acute renal failure in 10-60% of cases. Clinical presentations include hypotension, acute renal failure, and pulmonary complications. Diagnosis involves serology and PCR detection of the bacteria. Treatment focuses on antibiotics and renal replacement therapy. Prognosis depends on presence of multiple organ failure.