Which statement best describes the symptom range for Seoul virus infection?

Which statement best describes the symptom range for Seoul virus infection?

• A. They are always severe
• B. They are common in all infections
• C. They range from asymptomatic to severe
• D. They never occur

Answer: (C)

Seoul virus infection can present with a wide spectrum of illness, from no symptoms at all to severe disease. Many exposures produce mild or even subclinical illness, while a minority may develop febrile symptoms or renal involvement, and only rarely do cases become highly severe. This variability means the best description is that the symptom range spans from asymptomatic to severe, rather than being uniformly mild, always severe, or never occurring.

Seoul virus infection can present with a wide spectrum of illness, from no symptoms at all to severe disease. Many exposures produce mild or even subclinical illness, while a minority may develop febrile symptoms or renal involvement, and only rarely do cases become highly severe. This variability means the best description is that the symptom range spans from asymptomatic to severe, rather than being uniformly mild, always severe, or never occurring.