A 2-month-old girl is admitted to the hospital for decreased feeding and temperature to 104°F (40°C) for 2 days. She is fussy but consolable and not lethargic. There are no focal findings on physical examination. A complete blood cell count and urinalysis yield unremarkable results. Urine and blood cultures are pending. A nasopharyngeal swab submitted for multiplex PCR panel is positive for enterovirus. What is indicated for infection control?