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A growing outbreak of measles cases tied to people who visited Disneyland last month now includes a Grays Harbor County teenager and a California woman who visited several restaurants and other public sites during a visit to the Seattle area.

At least 17 people have been infected in the outbreak, which occurred among people who visited Disneyland or Disney California Adventure Park in Orange County, Calif., between Dec. 15 and 20, California health officials said Friday. It’s likely that a person who was contagious visited the theme park during that period and spread it to others.

Washington state health officials confirmed late Friday that the Grays Harbor girl, who had not been vaccinated, was infected. She visited Disneylandduring the same time as the others with confirmed cases, officials said. She also was treated at the Summit Pacific Medical Center in Elma, Grays Harbor County, while contagious.

At the same time, state health officials say, an unvaccinated woman in her 20s contracted measles after visiting Disneyland, then traveled by plane from Orange County to Seattle. She flew into Seattle-Tacoma International Airport on Dec. 29 and flew out last Saturday.

Because she was infected with the contagious disease in public places, potentially exposing others, health officials released details of the young woman’s travels.

Anyone who was at the these locations at the following times may have been exposed to measles:

• Sea-Tac: Dec. 29-30,10:30 p.m.-2 a.m. at the Main Terminal baggage claim

• Sea-Tac rental-car facility: Dec. 29-30, midnight-2:45 a.m.; last Saturday, 5:30-7:30 a.m.

• Dick’s Drive-In, 115 Broadway Ave. E.: Dec. 30, 1-3 a.m.

• Bethany at Pacific (in Providence Everett Medical Center), 916 Pacific Ave., Everett: Dec. 30, 1-7 p.m.

• Anthony’s Home Port, 456 Admiral Way, Edmonds: Dec. 30, 8 p.m.- midnight

• Swedish Edmonds emergency room, 76th Avenue West, Edmonds: Jan. 1, 2:45-6:30 p.m.

Measles was eradicated in the U.S. in 2000, but last year the country saw more than 600 cases sparked by infected travelers who spread it to unvaccinated residents, according to the U.S. Centers for Disease Control and Prevention (CDC).

Two doses of measles vaccine are 99 percent effective in preventing the disease, CDC officials say.

Most people in the U.S. are immune to measles, either through vaccinations that began in 1963 or because they have had the disease.

The worry is for unvaccinated people, especially children, who are particularly vulnerable to the disease, which can cause seizures, permanent brain damage or deafness. Measles is spread by droplets that can linger in the air for an hour or more.

The Disneyland outbreak includes 14 cases from seven California counties, two in Utah and one in Colorado.

As of late Friday, health officials had not added the Washington girl to the current case count.

JoNel Aleccia: 206-464-2906 or Twitter @JoNel_Aleccia