Which statement best describes the clinical symptoms of norovirus infection?

• A. Fever and dehydration
• B. Vomiting, watery diarrhea, nausea, and abdominal pain
• C. Jaundice and dark urine
• D. Rash and joint pain

Answer: (B)

Norovirus infection most commonly causes acute gastroenteritis with sudden vomiting, watery diarrhea, nausea, and abdominal cramps. This combination is the hallmark pattern for the illness and is typically seen during outbreaks, reflecting the virus’s effect on the GI tract. Fever can occur but is not the defining feature, and dehydration results from fluid losses. The other options describe symptoms that point to different conditions—jaundice and dark urine suggest liver problems, while rash and joint pain imply other infections or illnesses. Therefore, the described core cluster of vomiting, watery diarrhea, nausea, and abdominal pain best fits norovirus infection, with management focused on fluids and supportive care.