A 32-year-old female presents with 4 days of generalized myalgia and fever after harvesting rice, accompanied by cough, abdominal pain, and one episode of hemoptysis (50-60ml). Examination: temperature 39.2°C, pallor, conjunctival congestion, heart rate 140/min with gallop rhythm, bilateral lung crackles, and gastrocnemius tenderness. Leptospirosis is suspected. What is the route of entry for Leptospira into the human body?