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Respiratory Virus Data

The respiratory virus data tool consists of surveillance dashboards and summary reports.

Respiratory virus data are updated weekly on Thursdays.
Key trends

November 30, 2023 Summary:

Epi week 47: Nov 19 to 25, 2023

COVID-19 activity continues to decrease since early October; influenza A and RSV activity is increasing.

  • COVID-19 test positivity, cases, hospitalizations, and deaths continue to decrease.
  • Influenza A activity continues to increase, with detections of virus in wastewater in select plants within FH, IH, NH and VCH and increased testing positivity. Among subtyped influenza A samples this season, the majority were H1 (80%).
  • RSV activity continues to increase in several regions across the province. In particular, test positivity is high among children.

National and international context


  • In Canada, influenza activity continues to increase but is within expected levels for this time of year. Influenza A has been the most frequently reported influenza type since the start of the 2023/24 respiratory season; among those subtyped, 87% were H1.
  • In the USA, seasonal influenza activity is increasing in most parts of the country, most noticeably in the South Central, Southeast, Mountain, and West Coast regions. Since the start of October, influenza A was the most frequently reported type (79%); of those subtyped, 88% were H1.

RSV and other viruses:

  • In Canada, RSV activity continues to increase and is within expected levels for this time of the year. The activity of all other non-SARS-CoV-2 and non-influenza respiratory viruses is low and near expected levels this time of year.

The respiratory virus dashboards display data for circulating viruses including influenza, COVID-19, respiratory syncytial virus (RSV), enteroviruses/rhinoviruses (ERV), and others.

Respiratory season surveillance reports summarize key insights for circulating viruses including influenza, COVID-19, respiratory syncytial virus (RSV), enteroviruses/rhinoviruses (ERV), and others.

Special reports provide an in-depth summary of select topics during the current respiratory virus season.

British Columbia

Southern Hemisphere


    • The respiratory season report summarizes key insights from 28 August 2022 through to 22 April 2023. Following two years of relatively low non-COVID-19 respiratory illness activity in 2020/21 and 2021/22, the 2022/23 season is characterized by the return to seasonal respiratory virus co-circulation patterns, albeit with some atypical features.

  • Archived B.C. COVID-19 Data
    • Links to archived B.C. COVID-19 data including the B.C. COVID-19 Dashboard, maps, and PDF reports can continue to be accessed through the

About the Respiratory Diseases data platform

The Respiratory Diseases data platform combines surveillance for COVID-19, influenza and other respiratory pathogens in one platform to monitor trends throughout the respiratory season. The platform is made up of a series of interactive online data pages.

The last respiratory data update of the season was published on May 4, 2023. Updates on influenza and other respiratory pathogens will resume in the fall.

COVID-19 updates will continue monthly throughout the spring and summer.

Changes to COVID-19 data system: May 4, 2023

The British Columbia (BC) COVID-19 surveillance system was updated on May 4, 2023 to use infection episodes of COVID-19 to capture multiple COVID-19 infections in the same person. The update to the system will also capture all hospital and critical care admissions and deaths in a person with a positive lab test. This is a shift from using a system of using first positive lab result for surveillance.

For detailed information about the update to the surveillance system and impact of the changes, read the technical document: BC COVID-19 Surveillance System Update: Infection episode-based approach

National data 


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SOURCE: Respiratory Virus Data ( )
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