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More Resources: Respiratory Virus Information  | CDC's COVID Data Tracker

​Respiratory Virus Dashboard​

Welcome to the CDPH Respiratory Virus Dashboard.

Here, you'll find weekly updates on deaths and test positivity for both influenza and COVID-19 in California. This dashboard focuses on state-level data to give a clear overview of respiratory virus trends.

Due to changes in reporting requirements for hospitals, CDPH is no longer including hospitalization data on the CDPH dashboard. CDPH remains committed to monitoring the severe outcomes of COVID-19 and influenza, including the impact on hospitals. CDC's National Healthcare Safety Network (NHSN) will remain open to accept data, and CDC and CDPH strongly encourage all facilities to continue reporting.​


​Tracking Respiratory Viruses in California​​

  • All daily averages are 7-day averages.
  • Testing data:
    • COVID-19
      • Represents data received by the California Department of Public Health through electronic laboratory reporting of molecular test results for COVID-19 among residents of California.
      • Data are up to date through the previous Monday.
      • This week's COVID-19 data does not include testing data from Los Angeles County.​
      • Test positivity is based on a 7-day average.
    • Influenza
      • Represents data received by the California Department of Public Health from clinical sentinel laboratories in California. These laboratories report the aggregate number of laboratory-confirmed influenza virus detections and total tests performed on a weekly basis.
      • These data do not represent all influenza testing occurring in California.
      • Test positivity is based on influenza testing and results reported during a given week.
      • Weeks are defined as Sunday through Saturday.
  • Hospitalization data:
    • New admission counts include patients who were admitted to an inpatient bed on the previous calendar day who had laboratory-confirmed COVID-19 or influenza at the time of admission.
  • Death data:
    • COVID-19
      • As of January 1, 2023, death data was sourced from the California Department of Public Health, California Comprehensive Death File (Dynamic), 2023–Present. Prior to January 1, 2023, death data was sourced from the COVID-19 case registry. The change in data source occurred in July 2023 and was applied retroactively to all 2023 data to provide a consistent source of death data for the year of 2023.
    • Influenza
      • All influenza death data are sourced from the California Department of Public Health, California Comprehensive Death File (Dynamic), 2020–Present.
    • These deaths do not necessarily represent laboratory-confirmed deaths.
    • Deaths due to COVID-19 and influenza represent deaths occurring in California among residents who had COVID-19 or influenza noted anywhere on the death certificate.
    • Due to the many steps in reporting of death certificate data, provisional death data for recent periods are incomplete. Data and trends are subject to change as data are more complete.​
  • Archived historical COVID-19 and influenza data are available on the Open Data Portal.
  • More information on influenza surveillance can be found in the Influenza, RSV, and Other Respiratory Virus Weekly Report. Please note that the Influenza, RSV, and Other Respiratory Weekly Report only includes data through the previous Saturday, and data presented on the dashboard might include additional data reported after Saturday.​


  • COVID-19
    • As of January 1, 2023, data was sourced from the California Department of Public Health, California Comprehensive Death File (Dynamic), 2023–Present. Prior to January 1, 2023, death data was sourced from the COVID-19 case registry. The change in data source occurred in July 2023 and was applied retroactively to all 2023 data to provide a consistent source of death data for the year of 2023.
  • Influenza
    • All influenza death data are sourced from the California Department of Public Health, California Comprehensive Death File (Dynamic), 2020–Present.
  • These deaths do not necessarily represent laboratory-confirmed deaths.
  • Deaths due to COVID-19 and influenza represent deaths occurring in California among residents who had COVID-19 or influenza noted anywhere on the death certificate.
  • Due to the many steps in reporting of death certificate data, provisional death data for recent periods are incomplete. Data and trends are subject to change as data are more complete.​​
  • Death daily average and rate have a 22-day lag due to delays in reporting.
  • The population denominators in these charts come from the California Department of Finance's population projections for 2020.
  • Archived historical COVID-19 and influenza data are available on the Open Data Portal.

More information on influenza can be found in the Influenza, RSV, and Other Respiratory Virus Weekly Report. Please note that the Influenza, RSV, and Other Respiratory Weekly Report only includes data through the previous Saturday, and data presented on the dashboard might include additional data reported after Saturday.​



  • ​​COVID-19
    • Represent data received by the California Department of Public Health through electronic laboratory reporting of test results for COVID-19 among residents of California.
    • Testing date is the date the test was administered, and data are up to date through the previous Monday.
    • COVID-19 testing data from Los Angeles County has a 7-day lag​
    • Test positivity is based on a 7-day average.
    • Test positivity is calculated as the number of positive molecular tests divided by the total molecular tests performed. Test positivity includes people in state and federal prisons, US Immigration and Customs Enforcement facilities, US Marshal detention facilities, and Department of State Hospitals facilities.
  • Influenza
    • Represent data received by the California Department of Public Health from clinical sentinel laboratories in California. These laboratories report the aggregate number of laboratory-confirmed influenza virus detections and total tests performed on a weekly basis. Clinical sentinel laboratories use both molecular and antigen-based testing methods for influenza.
    • These data do not represent all influenza testing occurring in California.
    • Test positivity is based on influenza testing and results reported during a given week. Weeks are defined as Sunday through Saturday. Data are provided by participating clinical sentinel laboratories.
    • Test positivity is calculated as the number of positive tests divided by the total tests performed. Test positivity includes people tested at participating clinical sentinel laboratories.
  • The population denominators in these charts come from the California Department of Finance's population projections for 2020.
  • Archived historical COVID-19 and influenza data are available on the Open Data Portal.
  • More information on influenza surveillance can be found in the Influenza, RSV, and Other Respiratory Virus Weekly Report. Please note that the Influenza, RSV, and Other Respiratory Weekly Report only includes data through the previous Saturday, and data presented on the dashboard might include additional data reported after Saturday.​​


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