(Seattle, WA)  --  There are now six confirmed cases of measles in Western Washington.  The Washington State Department of Health says three of the patients are in King County.  Another two patients are in Pierce County, and Snohomish County has one confirmed case.  Health officials say all six patients spent time at Sea-Tac Airport.  The Health Department says it's also looking at another six possible cases.  An outbreak earlier this year in southwestern Washington's Clark County sickened four people in Multnomah County.