Leptospirosis, mainly a monsoon disease, is caused by leptospira bacteria, present in the urine of animals such as rats, dogs and cattle
लेप्टोस्पॉयरोसिस हा रोगबाधित प्राणी मुख्यत: उंदीर, डुक्‍कर, गाय, म्हैस, कुत्रा यांच्या लघवीद्वारे जंतू बाहेर पडतात.