Health officials are looking at a number of other suspected cases.
Twenty-five of the Clark County cases are between the ages of 1 and 10; 10 are between 11 and 18; and one case is between 19 and 29.
She also warned doctors to watch for patients with "rash illness and consider and report potential measles infection especially in unimmunized persons", according to the Star Advertiser. OR officials didn't provide the age of the adult infected there.
The state of Washington has declared a public health emergency amid a growing number of measles cases and health care professionals in the East recommend ways to protect your family. Authorities in neighboring OR and Idaho have issued warnings.
But measles is still a big problem in other parts of the world. A person can spread the virus before they show symptoms.
Last year, there were 17 outbreaks and about 350 cases of measles in the U.S.
In an effort to stop the spread of the illness, the Health Department and partners have provided more than 16,000 vaccinations. The first known patient sought medical care on December 31, but it is unknown if other people may have gotten sick before that and did not seek treatment.
Denver Public Health and the Colorado Department of Public Health and Environment are attempting to contact people directly exposed to the individual.
At least one case linked to the Washington outbreak had been reported in Oregon's Multnomah County as of Friday. According to the CDC, it infected between three and four million people in the United States every year, causing an estimated 400 to 500 deaths.
"While we do want to have a heightened level of concern and be aware of measles, there are many more much more common viruses that are circulating", she said.
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And then the one against Pittsburgh later, we were down 10 at halftime, took the lead with two minutes to go in the game. But yeah, its insane . "Great memories.
She also acknowledges that it can be hard for parents to navigate the amount of information available online and that misinformation and fear about vaccines have spread widely. But measles is still a big problem in other parts of the world, and travellers infected overseas can bring the virus back and spread it, causing periodic outbreaks.
"It's all hands on deck". Dr. Alan Melnick, the Clark County Public Health Director, in a statement said, "I think that misinformation is doing a disservice and it's unsafe". And we wouldn't be dealing with this if we had vaccination rates up.
"We should all be anxious when a vaccine-preventable illness is coming back into our country", Sammons said.
Now there are ongoing measles outbreaks in the United States in NY and the Pacific Northwest.
The MMR vaccine should be administered at 12 months of age, followed by a second dose at age 4 to 6.
Data on Portland's vaccination rate for both shots wasn't immediately available. Very few people-about three out of 100-who get two doses of measles vaccine will still get measles if exposed to the virus.
The vaccine is about 97 percent effective.
HB-1638 would only apply to measles, mumps, and rubella vaccines in the "philosophical or personal objections" category.
Here's why the current outbreak in Washington is a ideal example of what can happen when parents do not vaccinate their children for philosophical or religious reasons - and how exactly that can put their own kids, and others, at risk. Contagious people also went to Portland International Airport, as well as to hospitals, schools, stores, churches and restaurants across Washington's Clark County and the two-state region, county officials said. The disease is contagious from approximately four days before the characteristic rash appears to four days after the rash appears.
According to the CDC website, measles symptoms include a runny nose, high fever, red eyes, cough and sore throat. "While it is expected that most travellers will be immune to measles, some individuals will be susceptible, including infants less than one year old or people who have never been immunized against measles", the centre said in a statement.