BRITISH COLUMBIA INFLUENZA SURVEILLANCE BULLETIN 2011-12: Number 1, Weeks 40-43 October 2 to October 29, 2011
Sporadic Detections of Influenza in BC
Summary
During weeks 40-43 (October 2 ? October 29, 2011), influenza surveillance indicators suggested sporadic influenza activity in BC although the influenza-like illness (ILI) rate was higher than expected for this time of year based on sentinel physician and MSP reports, each of which have shown gradual increase. However, no lab-confirmed influenza outbreaks were reported and among 341 specimens tested, rhino/enteroviruses have so far predominated (133/341; 39%). Influenza was detected in a small proportion of submitted specimens (1.8%, 6 out of 341), which brought the total accumulated influenza positive cases since 1 September 2011 to eleven, including nine A(H3N2) in adults, and 2 influenza B (one child and one adult).
Sporadic Detections of Influenza in BC
Summary
During weeks 40-43 (October 2 ? October 29, 2011), influenza surveillance indicators suggested sporadic influenza activity in BC although the influenza-like illness (ILI) rate was higher than expected for this time of year based on sentinel physician and MSP reports, each of which have shown gradual increase. However, no lab-confirmed influenza outbreaks were reported and among 341 specimens tested, rhino/enteroviruses have so far predominated (133/341; 39%). Influenza was detected in a small proportion of submitted specimens (1.8%, 6 out of 341), which brought the total accumulated influenza positive cases since 1 September 2011 to eleven, including nine A(H3N2) in adults, and 2 influenza B (one child and one adult).
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