2012-13: Number 1, Weeks 37-43
September 9 to October 27, 2012
Low-level influenza activity in BC
During weeks 37-43 (September 9 to October 27, 2012), which includes the beginning of the new 2012-2013 influenza reporting period, influenza activity in BC remained at a low level. The proportion of patients with influenza-like illness among those presenting to sentinel physicians by week was 0.2% or less, within the expected level of this time of year. No lab-confirmed influenza outbreaks were reported. Among the 548 specimens tested at the BC Public Health Microbiology & Reference Laboratory, PHSA, rhino/enteroviruses continue to predominate (202/548, 37%). Influenza virus was identified in four (4/548, 0.7%) specimens, including two A/H3N2 (weeks 39 and 41), one influenza B (week 43), and one unsubtyped influenza A (week 43). Other respiratory viruses were also sporadically detected.