Health Advisory: Updated guidance for influenza testing and subtyping

Last revised Oct. 21, 2026 Summary Emergency Department visits for influenza are rising in Washington, indicating an early start to flu season.
Toxic algae caution advisory for Steilacoom Lake
Last revised Sept. 18, 2026 People and pets should avoid areas of the lake with visible algae. On Thursday, Sept.
Toxic algae caution advisories for Whitman Lake and Ohop Lake
Last revised Aug. 27, 2026 People and pets should avoid areas of the lakes with visible algae. On Thursday, Aug.
Community Health Assessment highlights community strengths and opportunities for better health
Last revised Aug. 26, 2026 Tacoma-Pierce County Health Department released its 2025 Community Health Assessment (CHA) on Wednesday, Aug. 19.
We issued toxic algae caution advisories for Tanwax Lake and Wapato Lake
Last revised Aug. 20, 2026 People and pets should avoid areas of the lake with visible algae. On Thursday, Aug.
We issued a toxic algae caution advisory for Spanaway Lake.
Last revised Aug. 13, 2026 People and pets should avoid areas of the lake with visible algae. On Aug.
Toxic algae caution advisory for Palmer Lake
Last revised July 17, 2026 People and pets should avoid areas of the lake with visible algae.
Health Advisory: Prepare for measles as cases increase across Washington

Last revised April 30, 2026 Summary Current situation As of April 15, 37 cases of measles had been identified in Washington in 2026.
We lifted our water advisory for Thea Foss Waterway
Last revised April 7, 2026 We lifted our Water Advisory for Thea Foss Waterway.
Toxic algae caution advisory lifted for Spanaway Lake, located in Parkland

Last revised April 7, 2026 Even when an advisory is not in effect, always use caution when you’re in the water. When in doubt, stay out!