A 25-year-old patient complains of general weakness, low appetite, heaviness and pain in the right hypochondrium, nausea, and dark urine. According to the patient's medical history, the patient was undergoing outpatient treatment for an acute respiratory viral infection for 3 days. Objectively, icteric sclerae, vesicular respiration, and rhythmic heart sounds are observed. The abdomen is soft and painful in the right hypochondrium. Hepatomegaly is observed. What is the most likely diagnosis in this case?