By JoNel Aleccia
A second case of measles in Washington state has been linked to a Disneyland outbreak that has sickened at least 47 people in the U.S. and Mexico since mid-December.
An unvaccinated teen boy in Grays Harbor was confirmed to be infected with measles, state health officials said Tuesday. He’s the brother of an unvaccinated teen girl who contracted the infection after visiting the Orange County, Calif., theme park between Dec. 17 and 20.
Washington health officials are monitoring people who may have come in contact with the teens, but no others are being tested currently, a spokesman said.
California health officials have declared the Disneyland-related outbreak over and say all cases from the original exposure should have occurred by Jan. 10. The outbreak was sparked by infected visitors who spread the disease to unvaccinated people visiting the park. The outbreak was linked to 41 cases in California, one in a toddler from Mexico, at least two in Utah, two in Washington and one in Colorado.
Measles is a highly contagious airborne disease that can linger for an hour or more after an infected person leaves an area.
Measles was eradicated in the United States 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 Centers for Disease Control and Prevention. Two doses of measles vaccine are 99 percent effective in preventing the disease, CDC officials say.