Respiratory illness season is well underway in Canada. While respiratory infections can occur year-round, it is common to see a significant increase in the fall and winter months. For some areas where the health care system is currently at capacity, these elevated or increasing levels of respiratory illness are already posing significant challenges to hospitals. As a result, it is especially important that we all take steps to protect ourselves and our families at this time of year, including during the holiday season.
The Public Health Agency of Canada (PHAC) continues to assess the levels of respiratory viruses across Canada and provides weekly national updates. While there is variability across the country, multiple viruses, including influenza (flu), respiratory syncytial virus (RSV), and SARS-CoV-2, the virus that causes COVID-19 are circulating at the same time. On November 25, 2023, PHAC indicated that flu season in Canada had officially begun. As of the week ending December 2, 2023, RSV and flu activity continued to increase in Canada but remained within expected levels for this time of year.
For COVID-19, at a national level, the percent of laboratory tests coming back positive remains relatively high. Additionally, some provinces and territories are seeing increases in COVID-19 activity, including to high and very high levels in parts of the country. However, trends in a number of indicators, including wastewater surveillance, vary by region. It is important for people in Canada to consult their local public health authorities for the most up to date information on respiratory virus activity in their region.
As the holidays approach, we can expect further spread of viruses as we travel and socialize more. I encourage everyone to take action to keep yourself and your loved ones healthy. If you haven't already done so, now is a good time to get your updated flu and COVID-19 vaccines
