SEATTLE — Health officials say they have confirmed 26 measles cases in western Washington since the beginning of the year.
State Department of Health Dr. Scott Lindquist said Thursday the number of confirmed measles cases in southwestern Washington increased to 25. King County has confirmed one case.
The majority of the cases involve children younger than 10.
Officials say 21 of the 25 people infected in southwestern Washington were not immunized.
Clark County Public Health said Thursday it is also investigating a dozen suspected cases of the highly-contagious viral illness spread when an infected person coughs or sneezes.
Those who are infected have visited public places while contagious, including the Portland International Airport, health care facilities and schools.
People who think they may have the measles are asked to contact their health care provider before visiting to avoid exposing others.