Antiviral Treatment of Human Influenza A(H5N1) Infection: Treatment Timing, Clinical Outcomes, Virological Outcomes, and Antiviral Resistance: A Systematic Review Haaly Al Muaafy Ruslan Musanip1, Juniastuti1,2*, Kaiser Gerald Handoyo1, Rizal Rachbini Mahlevi¹ Abstract Human influenza A(H5N1) infection remains a clinically important zoonotic disease, but evidence on antiviral effectiveness is limited by