Both the Hood River County Health Department and North Central Public Health Department say the Oregon Health Authority has confirmed a case of measles in a person who was infectious and spent time in Hood River and The Dalles between December 26 and 31.  The person, who had traveled to the region from out of the country, was diagnosed in a Portland hospital on Wednesday.  No additional cases have been identified, and the Oregon Health Authority is working with local public health agencies to notify individuals of their potential exposures and to inform them of steps to take if they become ill.  Most people who live in the Northwest have been vaccinated against measles, and their risk is low. Risk may be higher for unvaccinated people who were at the Discovery Center in The Dalles on Saturday (December 29) between 1:30 and 4:30 in the afternoon, Doppio Café and Goodwill in Hood River on Sunday (December 30) between noon and 1:00 and the Full Sail Brewery between 1:00 and 2:00, and Fred Meyer in The Dalles on Monday (December 31) between 5:00 and 6:00 in the evening.  Health department officials say they would expect symptoms in anyone newly infected to appear anytime over the next week or two with a rash following initial symptoms.  For information on measles go to the Oregon Health Authority website, or call the Hood River County Health Department at 541-386-1115 or North Central Public Health District at 541-506-2600.