splenomegaly

A 25-year-old gentleman presents with 3 days of rhinorrhea, fever, cough, and abdominal pain. On examination, his temperature is 39.6°C, he has reduced breath sounds, and an enlarged spleen. Which of the following causative pathogens, if identified, would require mandatory notification in Australia?

A 45-year-old man presents to the clinic with a 3-month history of fatigue, weight loss, and abdominal pain. He has a history of type 2 diabetes and hypertension. On examination, he has a palpable mass in the left upper quadrant of the abdomen. Laboratory tests reveal anemia and elevated serum lactate dehydrogenase (LDH). A CT scan of the abdomen shows splenomegaly and multiple hypodense lesions in the spleen. What is the most likely diagnosis?