A 10-year-old boy is brought to the office with a 2-day history of fever, muscle aches, sore throat, and cough. Vital signs reveal:  <image 1>. Physical examination reveals: Clear lung sounds; Erythematous, edematous nasal turbinates with clear discharge; Erythematous oropharynx without exudate. A rapid diagnostic immunoassay of nasal secretions reveals antigens from a segmented RNA virus. What is the most likely etiology?
['coronavirus', 'influenza virus', 'parainfluenza virus', 'respiratory syncytial virus', 'rhinovirus']