Disneyland park guests in California may have been exposed to measles

The Los Angeles County Department of Public Health is warning Disneyland guests they may have been exposed to measles last week.

Those who were at the park between 9:15 a.m. and 8:35 p.m. on Oct. 16 could be at risk of developing measles up to three weeks after exposure. The person who visited Disneyland with measles while infectious also visited a Starbucks on South Sepulveda Boulevard in Los Angeles earlier that morning between 7:50 and 10 a.m.

USA TODAY has reached out to a Disneyland representative for comment.

The Department of Public Health advises those who may have been exposed to review their immunization records to determine whether or not they've been vaccinated against measles and to alert a doctor if they have not been, or if they're pregnant, an infant or have a weakened immune system. If fever and/or an "unexplained rash" begin to develop, "stay at home and call a health care provider immediately," the department wrote in a press release.

"Public Health urges residents, especially those who travel internationally and those who have not been fully protected against measles, to get the measles immunization in order to better protect their individual health and to prevent the spread of measles to others," the department added.

In 2015, a large measles outbreak began at Disneyland, sparking a broader debate about vaccinations. The disease spread to six states, plus Mexico and Canada, infecting 147 people in the process. There were no deaths.

Many of those who became sick were not immunized against measles. Some cited personal reasons for refusing shots, and others were too young to get the measles-mumps-rubella vaccine.

This marks the 19th case of measles in Los Angeles this year. According to the Department of Public Health, "the majority of cases to date were unimmunized or did not know whether they had ever been immunized."