Respiratory Viruses Surveillance Bulletin: Epidemiological Week 47

Overview

• Influenza positivity has continued to sharply increase in the region and reached 35% in week 47 (Figure 1).
• SARS-CoV-2 positivity continues to decline with a slight upsurge reported in the last week, which may be related to incomplete reporting (Figure 1).
• The predominant circulating influenza subtype remains influenza A(H3N2) (Figure 2).
• Since the last surveillance bulletin, several media articles[1] from across the region describe an earlier-than-usual rise in influenza activity this season, with several outlets noting a sharper increase compared with the same period last year. Measures recommended include vaccination, seeking early treatment, personal hygiene measures and school closures.
  

*As data submission for the most recent week has not been received from all countries the current trends should be interpreted with caution.