The Washington State Health Department has released a warning for people who might have been in the Seattle area in late March.

A woman in her 20s became contagious with measles on March 26th. She worked at Lynden Dutch Bakery while contagious in Whatcom County. On March 28 she traveled to Seattle attending an event at Key Arena. She also was at the Best Western Loyal Inn, Wasabi Bistro, Beth's Cafe, Aurora Suzuki, Starbucks at First and Pike, Pike Place Market, Celebrity Cake Studio, LeMay Car Museum and Harmon Brewing Company.

Anyone who was in those locations should find out if they have been vaccinated for measles or have had measles previously.

A resident of California traveling through Sea-Tac was also in a contagious period. The traveler was likely exposed to the measles while overseas. If you were in Terminal B on March 21st from 8:15 a.m.-10:15 a.m. and on March 22nd from 6:30 p.m.-10:00 p.m. you might have been exposed.

People, who are not vaccinated, unsure if they are immune and develop an illness with fever or unexplained rash should consult a doctor immediately.

Public health officials urge them to call ahead to their clinic, doctor's office or emergency room before arriving so people in the waiting rooms are not exposed.