(Seattle, WA) -- Health officials are confirming a new outbreak of the measles in Western Washington. The Washington State Department of Health says they've confirmed four new cases of the disease in people who recently visited Sea-Tac Airport. Two of the patients are King County women. A third patient is a high school student in Snohomish County and the fourth patient is a Pierce County man. Officials say it's likely that more confirmed cases will pop up in the coming days. An outbreak earlier this year in Washington's Clark County sickened at least four Multnomah County residents.