MxA-Guided Antiviral Treatment in Respiratory Viral Infections

Whole blood samples will be collected on Days 1, 4, 7, and 10 for MxA testing. MxA measurements on Days 4, 7, and 10 will be performed only for patients still hospitalized on antiviral thearpy or at the attending physician's discretion.

MxA results will be reported to the attending physician within 4 hours, along with MxA-based antiviral treatment guidelines.

A telephone visit will be conducted on or around Day 30 for study participants who are discharged, to collect information on antiviral usage, recurrence infection, readmissions, and additional medical visits.