PORTLAND, Ore. (KOIN) — There may be another case of measles in Multnomah County.

Multnomah County health officials are investigating a possible fifth case so far this year. 

This new case has not officials been linked to the Clark County outbreak, which now involves 65 cases. The previous four cases were directly linked to the other outbreak.

Washington measles outbreak website
Oregon Health Authority measles website 

CDC measles fact sheet

“We are notifying people who were potentially exposed out of an abundance of caution,” Multnomah County deputy health officer Dr. Jennifer Vines said in a press release. “The good news is that measles is not spreading from Clark County to the Portland metro area.”

Multnomah County officials said 96% of school-age children and most Oregonians have immunity to measles thanks to the MMR vaccine.

People may have been exposed to measles in the following locations in Multnomah County:

  • Portland International Airport: Tuesday, Feb. 19, 9 p.m. to 10:30 p.m.

  • Randall Children’s Hospital at Legacy Emanuel emergency department: 10:30 p.m Tuesday, Feb. 19 to 2:30 a.m. Wednesday, Feb. 20.

Anyone who has not been vaccinated, has been exposed and has symptoms should call their healthcare provider before visiting a clinic or urgent care.

About measles

Measles is a highly contagious virus spread through the air. It can linger in a room up to two hours after someone with the virus has been there and you can catch it even before the sick person develops a rash. 

The virus starts with a fever and can also cause a runny nose, cough, red eyes, ear infection, diarrhea and a rash of tiny red spots starting at the head and then spreading. It is especially dangerous for babies and young children. 

The CDC said almost everyone who has not been vaccinated will get the virus if they are exposed.

A person is considered immune to measles if ANY of the following apply:

  • You were born before 1957. 
  • A physician diagnosed you with measles in the past. 
  • A blood test proves that you are immune. 
  • You have been fully vaccinated against measles (one dose for children 12 months through 4 years old, two doses in anyone 4 years and older).

Complete KOIN.com coverage of the measles