Current RiskUpdated: Tue Mar 3 8:45 PM
Active Weather Triggers
Short Term RiskUpdated: Tue Mar 3 8:45 PM
National Flu Activity
South Flu Activity
- In week 07, all influenza indicators remained similar to, or declined, from the previous week.
- Overall, elevated activity was mostly reported in the Central and Atlantic provinces.
- For the past few weeks, influenza B detections have been increasing steadily, particularly in the Prairies and in Quebec. In week 07, influenza B detections were greater than influenza A detections in QC and AB. This increase in influenza B is expected as influenza B often shows up later in the flu season.
- A(H3N2) continues to be the most common type of influenza affecting Canadians. Seniors continue to have the highest number of positive laboratory detections, hospitalizations and deaths.
- Detections of respiratory syncytial virus (RSV) continue to be the second most frequently detected virus after influenza.
- Evidence from the National Microbiology Laboratory (NML) does indicate that this year's vaccine will continue to provide protection against the circulating A(H1N1) and B strains.
National Flu Test
Feb 15-Feb 21, 2015
Total Flu Season 2014-2015
About the Active Weather Trigger
Active weather triggers are changes in the weather that could augment health complaints. Each active weather trigger is weighted equally. The occurrence of more than one trigger increases the severity of health risk.
Temperature – a decrease of 5 degrees Celsius or more.
Humidity – an increase of 20%.
Pressure – a decrease of 0.7 kPa (kilopascal) or more.
Dewpoint – an increase of 5 degrees Celsius or more.