Respiratory virus activity remained relatively low in Santa Barbara County as of mid-December 2025, even as seasonal influenza activity across California saw an increase.
Seasonal influenza activity has been increasing not just in the state but also across the country. However, minimal influenza activity was observed in Disease Week 50 across Santa Barbara County, according to the county’s Respiratory Viruses Report as of December 13, 2025.
The 11 sentinel provider sites that reported during the time period found influenza-like illness (ILI) in three of the 5,645 total patients in the county, which was lower than the activity level seen this time in 2024, the report noted…