Weekly influenza surveillance overview, week 11 2014

​For week 11/2014:
• Of the 29 countries providing clinical data, no country reported high-intensity influenza activity.
• Of the 787 sentinel specimens tested across 22 countries, 281 (36%) were positive for influenza virus. Of these, 275 (98%) were type A and six (2%) were type B.
• Six countries reported 152 hospitalised, laboratory-confirmed influenza cases, including 71 cases admitted to intensive care units.

Influenza activity remains at a moderate to low-intensity level with a stable or decreasing trend in the majority of the EU/EEA Member States and co-circulation of influenza A(H1)pdm09 and A(H3) subtypes.