Sixth measles case confirmed in King County. See answers from health officials

A sixth King County measles case in May was confirmed Wednesday by Public Health - Seattle and King County.

In this case, a man in his 40s received care at MultiCare Indigo Urgent Care in Issaquah while he was contagious.

His case marks nine recent measles cases among Washington state residents.

On Saturday, a 6-month-old child was diagnosed with measles and taken to Seattle Children's Hospital while she was contagious.

Last Tuesday, a woman in her 30s was diagnosed with measles. She spent time at sites in King County before she knew she was contagious.

>> See the full list of potential exposure locations in King County here

"At this point in the investigation, the information on the recent cases points to a common exposure from an unidentified person contagious with measles on April 25, 2019 at Sea-Tac International Airport, likely in the morning," Public Health spokesman James Apa said in a statement. "Health officials have no reason to believe that there is currently an increased risk of getting measles by visiting the airport."

Dr. Jeff Duchin, Health Officer for Public Health – Seattle and King County, recently answered questions about measles concerns.

Should people freak out about the measles scare?

“No one should freak out. Everyone should get vaccinated. .,.. We have a highly effective and safe vaccine. We have time. We’re not in the middle of a large outbreak. But we may be at some point if we don’t do what we need to do.”

What are the recommended vaccination doses?

“If you travel internationally, you should have two doses. If you’re a student, you should have two doses. If you’re a health care worker, you should have two doses. Most adults only need one dose.”

What should you do if you don’t have your vaccination records? 

if you don’t have records, get a blood test from a health provider or get a second dose, Duchin said. A second dose is fine.

Why are we seeing an increase in measles cases?

“Measles is surging around the world and in the U.S., primarily due to low vaccination rates,” Duchin said. The disease is easily transmitted through the air, and Duchin said people have become complacent about measles.

How many people need to be vaccinated for a community to be safe?

“You really need to have 95 percent ideally of your community vaccinated or more to really be comfortable that measles won’t transmit in that community.”

What happens if someone not vaccinated is exposed to measles?

“If someone is exposed to a measles case, and they can be vaccinated with 72 hours that will decrease the likelihood they will develop measles. If there’s a high-risk person – that mean’s a pregnant woman, an infant, someone who has a weakened immune system who’s been exposed to measles – they shouldn’t be vaccinated, but they can receive a medicine called immune globulin up to six days after their exposure that will prevent them from developing measles. If you’re past that time frame, it’s very important just to watch very closely for symptoms and contact a health care provider right away if you develop symptoms.”

Can you get measles or spread measles if you have been vaccinated?

“If you’ve been vaccinated, you cannot spread the measles. You cannot acquire the measles, in general. In a very small proportion -- 1 or 2 percent of people who are vaccinated may get measles because they failed to respond to the vaccine. But 97 percent of people who get the recommended doses, two doses are protected, which means they can’t be infected, they can’t spread it.”

Could the measles situation in Western Washington get worse?

Duchin said they will know within 21 days. That time is to see how many people with measles came in contact with, and how far cases could potentially spread. He said getting vaccinated is the best defense.

Where in Western Washington were people with recent measles cases?

Pierce County 

The Tacoma-Pierce County Health Department announced May 12 that a man in his 40s was diagnosed with measles. The patient had been to SeaTac Airport and a meeting at Orting High School. To read locations of potential exposure, follow this link.

A second case was announced May 15. The patient is a man in his 50s that spent time in the Puyallup area while contagious.

King County

A woman in her 40s and a woman in her 50s have been diagnosed with measles, according to the Washington State Department of Health. The Issaquah School District confirmed that one of the patients is an employee at Issaquah High School. Potential locations of exposure are listed below. Read more here.

Snohomish County

The Snohomish County Health District is currently investigating a confirmed measles case in an adolescent male. Health officials say he is a student at North Creek High School in Bothell. Potential places of exposure are listed below. Read more here.

School district officials said Wednesday evening that the district has been working the Snohomish Health District to review student vaccination records.

According to their records, they said almost 99 percent of North Creek students have received the MMR vaccine.

The school district has contacted families of students who have not received the vaccination.

"These students will be excluded from school until June 3, barring any additional confirmed cases," the district said.

Information from the KIRO 7 staff is included in this report.

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