Re: British Columbia Influenza Surveillance Bulletin 2011-12 Week 16
BRITISH COLUMBIA INFLUENZA SURVEILLANCE BULLETIN
2011-12: Number 16, Week 16
April 15 to 21, 2012
Prepared by BCCDC Influenza &
Emerging Respiratory Pathogens Team
Continued low-level influenza activity in BC
Summary
In week 16 (April 15-21, 2012), most influenza surveillance indicators suggested that influenza activity continues at low levels in BC. The proportion of patients with influenza-like illness among those presenting to sentinel physicians was 0.20%, similar to previous weeks and within the expected range for this time of year. Throughout the province, influenza illness as a proportion of all submitted BC MSP claims remained at or below the 10-year median for this time of year. In week 16, no lab-confirmed influenza outbreaks were reported; one has been reported in week 17 (influenza A, subtype pending). Of the one hundred and six specimens tested at the BC Public Health Microbiology & Reference Laboratory, PHSA, during this period, 18 (17.0%) were positive for influenza, including 8 (7.5%) influenza A/H3N2, 3 (2.8%) A(H1N1)pdm09, 2 (1.9%) influenza A (subtype pending), and 5 (4.7%) influenza B. Other significant respiratory virus detections included rhino/enterovirus (13/106, 12.3%), respiratory syncytial virus (12/106, 11.3%), and human bocavirus (8/106, 7.5%). Other respiratory viruses were also sporadically detected. RSV increased and continued to dominate among the respiratory viruses detected at BC Children?s Hospital.
Full report:
BRITISH COLUMBIA INFLUENZA SURVEILLANCE BULLETIN
2011-12: Number 16, Week 16
April 15 to 21, 2012
Prepared by BCCDC Influenza &
Emerging Respiratory Pathogens Team
Continued low-level influenza activity in BC
Summary
In week 16 (April 15-21, 2012), most influenza surveillance indicators suggested that influenza activity continues at low levels in BC. The proportion of patients with influenza-like illness among those presenting to sentinel physicians was 0.20%, similar to previous weeks and within the expected range for this time of year. Throughout the province, influenza illness as a proportion of all submitted BC MSP claims remained at or below the 10-year median for this time of year. In week 16, no lab-confirmed influenza outbreaks were reported; one has been reported in week 17 (influenza A, subtype pending). Of the one hundred and six specimens tested at the BC Public Health Microbiology & Reference Laboratory, PHSA, during this period, 18 (17.0%) were positive for influenza, including 8 (7.5%) influenza A/H3N2, 3 (2.8%) A(H1N1)pdm09, 2 (1.9%) influenza A (subtype pending), and 5 (4.7%) influenza B. Other significant respiratory virus detections included rhino/enterovirus (13/106, 12.3%), respiratory syncytial virus (12/106, 11.3%), and human bocavirus (8/106, 7.5%). Other respiratory viruses were also sporadically detected. RSV increased and continued to dominate among the respiratory viruses detected at BC Children?s Hospital.
Full report:
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