The new cases are a Multnomah County resident and a Clackamas County resident. A total of four confirmed cases are linked to the traveler.

PORTLAND, Ore. — Oregon health officials have confirmed two more cases of measles linked to a traveler diagnosed with the illness who recently made several stops in Salem.

The new cases are a Multnomah County resident and a Clackamas County resident. A total of four confirmed cases are linked to the traveler.

The Oregon Health Authority said the cases are unrelated to the outbreak in Clark County, Washington, where more than 70 people have been diagnosed with the virus. They are also unrelated to previous measles cases in Multnomah County.

At least two of the confirmed cases are in people who were not vaccinated, health officials said.

The infected person who traveled through the Salem area is an Illinois resident who recently spent time in countries where measles is common, officials said. The person had not received immunizations against the virus, according to officials.

The Clackamas County resident previously visited Youth With a Mission, a Salem missionary training school, during the same time as the Illinois resident.

People who were at the following areas at the following times may have been exposed to measles:

Health officials removed previously listed exposure sites because the period during which someone could have gotten measles has passed.

Oregon Health Authority is working with Marion and Multnomah counties to identify people who may have been exposed. Most Oregonians have been vaccinated and their risk is low. Risk is higher for people who have not been vaccinated.

Health officials say anyone who was exposed or believes they may have symptoms of measles should call their health care provider prior to visiting a medical office.

Those who have questions about measles can call their county health department:

Multnomah County Public Health: 503-988-3406

Clackamas County Public Health: 503-655-8411

Marion County Public Health: 503-588-5621

Clark County Public Health: 564-397-8182

Measles symptoms begin with a fever, cough, runny nose and red eyes, followed by a rash that usually begins at the head and spreads to the rest of the body, according to health officials.