A man with diarrhea.

Respiratory syncytial virus (RSV) primarily affects infants and children and can manifest as upper airway dysfunction. Patients at the highest risk of increased morbidity and mortality from RSV include those who are immunosuppressed and the elderly. Patients with RSV hepatitis most commonly present with fever, abdominal pain, nausea, and vomiting; however, patients may present with jaundice and coagulopathies in a severe infection.