A teenage girl from New Zealand sick with measles visited Disneyland and other popular tourist stops across Southern California earlier this month, possibly infecting others, local government health officials have warned.
The alert comes amid the worst outbreak of measles in the United States in a quarter century, with more than 1,200 cases reported across 30 states since October 2018, according to the US Centers for Disease Control and Prevention.
"The Los Angeles County Department of Public Health is looking to identify others who are at risk for measles and may have been exposed to a non-resident measles case that travelled to Los Angeles County while infectious," the health department said in an advisory on Friday night.
The Orange County Health Care Agency said that the girl was in Southern California from August 11 to August 15.
The disease was declared eliminated in the US in 2000, meaning there was no continuous transmission for at least a year. CDC officials say the United States risks losing its measles elimination status if the current outbreak, which began in October 2018 in New York state, continues until October 2019.
Australian Associated Press