PRO/EDR> Influenza (50): WHO Global update, Costa Rica, seasonal

Influenza — Worldwide/Unknown
Summary
——-
Influenza activity in the temperate zone of the northern hemisphere increased slightly.
– In North America, influenza activity slightly increased with influenza A(H3N2) virus predominating. Influenza-like illness (ILI) levels remained below seasonal thresholds. In the United States, respiratory syncytial virus (RSV) activity continued to be reported.
– In Europe, influenza activity was low but has started to rise, particularly in Northern European countries. Influenza A