The Los Angeles County Department of Public Health is cautioning residents about an increase in measles cases among people who have recently traveled domestically and internationally. With measles outbreaks in the United States and around the world, an increase in cases highlights the importance of being protected before summer travel plans. The public health department encourages all residents to get the measles-mumps-rubella vaccine.

“Measles is a serious respiratory disease that spreads easily through the air and on surfaces, particularly among people who are not already protected from it,” Los Angeles County Health Officer Dr. Muntu Davis said. “A person can spread the illness to others before they have symptoms, and it can take seven to 21 days for symptoms to show up after exposure. Measles can lead to severe disease in young children and vulnerable adults. As L.A. County residents begin to travel this summer and with measles cases increasing among those who have recently traveled, we remind everyone that the best way to protect yourself and your family from infection is with the highly effective measles vaccine.”

The department encourages all residents to review their immunization and medical records to determine if they are protected against measles, especially before international travel or domestic travel in areas experiencing measles outbreaks. People who have not had measles infection or received the measles immunization previously are not protected from the measles virus and should speak with a health care provider about receiving the measles, mumps and rubella immunization.

An infected person can spread measles up to four days before a rash appears and up to four days afterwards. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected.

If symptoms develop, stay home and call a health care provider immediately. Do not enter a health care facility before calling and making them aware of a measles exposure and symptoms. The public health department can assist health care providers in appropriately diagnosing and managing care.

For information, visit ph.lacounty.gov/measles.