Weekly influenza surveillance overview, 14 - 20 Nov 2011 (Week 46)

Surveillance report

During week 46/2011, low influenza activity was notified by all 26 reporting countries.Of 535 sentinel specimens tested, eleven were positive for influenza viruses (2.1%).Since week 40/2011, twelve SARI cases have been reported by three countries. One of them was a confirmed case of influenza. Seven weeks after the beginning of the surveillance season for influenza in the Northern Hemisphere, there has been no evidence of sustained transmission in EU/EAA countries.