A 36-year-old patient was hospitalized on the seventh day after the onset of the disease with complaints of marked weakness, fever, headache, and pain in the calf muscles. Objectively, the skin and sclera are icteric, a hemorrhagic rash is observed on the skin. Diuresis 200 ml. According to the patient's history, the patient went fishing 2 weeks ago. What is the most likely diagnosis in this case?