Figure 1

The infection pathway of Leptospire. A): Leptospires in the nature resource. B): Leptospires in the rodents or wield animals. C): Leptospires in pets. D): Leptospires in water or soil. E): The infected human can develop meningitis, pneumonitis, hepatitis, pancreatitis, nephritis and erythema nodosum. The organisms are excreted in urine. They survive for longer periods in natural waters.