October, 2025

In September, clinical data showed a moderate increase in the detection of Influenza A and Rhinovirus, reflecting typical seasonal patterns. Both viruses tend to circulate more widely during the cooler months, contributing to a rise in respiratory infections.

As we enter the fall season, vaccination efforts for both influenza and COVID-19 are now underway. Public health authorities strongly recommend vaccination, particularly for high-risk individuals. These vaccines play a crucial role in reducing illness severity, preventing hospitalizations, and limiting the spread of both viruses. With co-circulation expected, vaccination remains an essential tool in protecting public health and reducing the burden on healthcare systems.

Non-respiratory viruses remained within expected seasonal ranges, with no unusual spikes or deviations from normal patterns.

Refer to www.cdc.gov/coronavirus/2019-ncov for the most recent updates.

Ordering information available here: https://depts.washington.edu/uwviro/.

View the UW Virology COVID-19 Dashboard for up to date testing numbers.

Follow the area’s epidemiological data each week on the UW Virology web site at https://depts.washington.edu/uwviro/respiratory-viral-epidemiology-data/.

 

Community detections: September, 2025

PCR Positives: