Respiratory Viruses Surveillance Bulletin: Epidemiological Week 17, 2026

Overview

• Regional influenza positivity increased slightly from 9% in week 13 to 11% in week 15 of 2026.  SARS-CoV-2 positivity remains below 5% in the Region (Figure 1). The predominant circulating influenza subtype is influenza B(Victoria), accounting for 92% of all detections (Figure 2).