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Division of Communicable Disease Control

Person working on a data dashboard on their laptop.ā€‹

Weekly Respiratory Virus Report

This report shows statewide, weekly data for the following illnesses:

  • COVID-19
  • Influenza
  • Respiratory Syncytial Virus (RSV)


The weekly Respiratory Virus Report updates most Fridays. 

The 2024-2025 respiratory virus season covers June 30, 2024 through June 28, 2025.

The data is reported early and may change in future reports as more information becomes available.

This report doesnā€™t cover all areas of Califorā€‹nia, so it might not represent the entire stateā€™s public health situation.ā€‹ā€‹ā€‹ā€‹

NOTE:  Kaiser Permanente admissionsā€‹ dataā€‹ā€‹ā€‹ for RSV will not be updated during Weeks 14-15.ā€‹

Week 15: April 06, 20ā€‹25 - April 12, 2025: Data Snapshot

ā€‹View the full report below the key messages.

ā€‹Metricā€‹ā€‹ā€‹
 ā€‹COVIDā€‹-19
 Flu
 RSVā€‹

ā€‹Test Positivityā€‹ā€‹ā€‹ā€‹ā€‹ (change)

2.3% (0.4)ā€‹

8.0% (-0.9)ā€‹

1.6% (-0.5)ā€‹
New Admissions Rate per 100,000 Persons (change)

1.5 (0.2)

1.0 (-0.1)

N/A

Percent of Total Deaths (change)ā€‹

0.0% (-0.7)ā€‹

0.3% (0.1)ā€‹

0.3% (0.2)ā€‹

Total Season Pediatric Deaths*ā€‹ā€‹ (new)

4 (1)ā€‹ā€‹ā€‹

25 (1)ā€‹

6 (1)ā€‹

Wastewater Concentrationsā€‹ (trend)ā€‹

Lowā€‹
(Plateauing)ā€‹

N/Aā€‹

N/Aā€‹

ā€‹ā€‹*Refer to pediatric deaths data notes section.ā€‹

ā€‹

Key Messā€‹ā€‹agesā€‹

  • Influenza activity is low. RSV activity is minimal. COVID-19 activity is low.

  • The majority of positive influenza specimens for this season have been type A with both H1 and H3 seasonal subtypes circulating. Although influenza testing volume continues to decrease, the number of influenza B positive specimens make up a greater proportion compared to influenza A.ā€‹ā€‹

  • CDPH data show that only a small percentage of eligible Californians have received the appropriate respiratory virus vaccines.ā€‹

This yearā€™s respiratory virus season has been dominated by seasonal influenza. See CDCā€™s Preliminary Estimated Flu Disease Burden 2024-2025 Flu Season.ā€‹

With elevated respiratory virus activity, now is the time to take added precautions to prevent disease spread, especially if you have risk factors for severe disease. Get vaccinated, protect yourself from serious illness, and reduce strain on our healthcare system. Updated COVID-19 and influenza vaccines are still available. Visit the CDCā€™s RSV vaccination webpage for information about preventing RSV infection. Talk to your healthcare provider today.

For the most up to date information on bird flu, please see the bird fā€‹lu wā€‹ebpaā€‹ā€‹geā€‹ā€‹.ā€‹

Full Respiratory Virus Report

Blurred out image of first page of RV reportā€‹ 

Previousā€‹ā€‹ Respiratory Virus Reports

ā€‹2024 ā€“ 2025 Season

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