31. The plagues have been attributed variously to smallpox, leptospirosis , and other diseases. 32. -- Leptospirosis -- mud fever-- is transmitted by infected animal urine. 33. Hanta virus causes symptoms similar to leptospirosis . 34. Leptospirosis , the disease which attacked one of the dogs, is transmitted through rodents.35. Animal doctors in Pennsylvania, Tennessee and New York also have reported increases in leptospirosis . 36. Leptospirosis is contracted by coming into contact with or swallowing water contaminated with animal urine.37. Karp started antibiotics on the advice of an infectious disease specialist who confirmed his leptospirosis . 38. The water of the Carioca carries pollutants that cause diarrhea, hepatitis, and leptospirosis . 39. A leptospirosis outbreak in the immediate aftermath infected more than 400 people and killed 22. 40. Except in the Far East, bleeding in the lungs from leptospirosis has rarely been reported.