Review Question - QID 210612

A 32-year-old man presents to the emergency department with fever, weight loss, and right upper quadrant pain. He says that he started experiencing nausea and fatigue after he returned from a honeymoon trip to Asia with his wife. Notably, she is 5 months pregnant with their first child. On presentation, his temperature is 100.8°F (38.2°C), blood pressure is 118/79 mmHg, pulse is 81/min, and respirations are 14/min. Physical exam reveals a jaundiced patient with a palpable liver edge as well as splenomegaly. Labs are sent in order to confirm the diagnosis. After confirmation, the patient's wife is immediately tested as well because she is at a much higher risk of fatal complications from this infection. The organism that is most likely responsible for this patient's symptoms has which of the following structures?