July, 2025

June saw relatively low activity in viral isolations. Most common respiratory viruses, including influenza, respiratory syncytial virus (RSV), parainfluenza, and adenovirus, remained at minimal levels, in line with typical seasonal trends. The only exception was SARS-CoV-2, which showed a slight increase in detection rates, rising from a 3.0% positive rate in May to 4.5% in June. However, this modest uptick does not currently suggest a broader resurgence.

This overall decline in respiratory virus circulation aligns with expected patterns for the summer months when warmer temperatures, increased outdoor activity and reduced close-contact settings tend to contribute to lower transmission rates.

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: June, 2025

PCR Positives: