California Respiratory Virus Activity Dashboard

California statewide and regional weekly data tracks COVID-19, influenza, and RSV activity. The dashboard provides metrics on test positivity, emergency department visits, hospital admissions, and deaths, with updates typically occurring each Friday.

Use Cases

• Analyze weekly trends in test positivity for COVID-19, influenza, and RSV across California regions.
• Model the relationship between emergency department visits and subsequent hospital admissions for respiratory viruses.
• Track pediatric death metrics associated with influenza and RSV to assess seasonal severity.
• Compare the temporal patterns of COVID-19 and influenza death percentages from state-reported data.

Strengths

• Data originates from the authoritative California Department of Public Health.
• Covers three major respiratory viruses (COVID-19, influenza, RSV) with multiple severity metrics.
• Provides weekly updates, offering relatively current surveillance data.

Limitations

• The specific number of rows, columns, and temporal range of the underlying data is not provided.
• Data is described as subject to change in future updates, which may affect reproducibility of analyses.
• Geographic detail is limited to 'statewide and regional' levels without further granularity.

Provenance

Source

California Department of Public Health (CDPH)

Collection Method

Aggregated from state surveillance systems (e.g., NHSN, NSSP, laboratories).

Freshness

Updated weekly, most recently on 2026-03-23.

Geography

State of California, with regional breakdowns.