Health officials are reporting seven more cases of measles in an outbreak tied to visits to Disney theme parks in California last month.
The new cases confirmed Monday by the California Department of Public Health brings the total to 26 people in four states.
Officials say 22 of the cases are in California and two are in Utah, with one apiece in Colorado and Washington.
Most of the patients visited Disneyland or Disney California Adventure between Dec. 15 and Dec. 20, but some may have contracted the illness from others who visited.
At least one of the original cases was a person from San Diego that visited Disneyland.
In the San Diego case, two siblings with the illness may have exposed shoppers and employees at the Parkway Plaza mall in El Cajon.
According to the county Health and Human Services Agency, the pair visited the mall Dec. 29 between 10 a.m. and 2 p.m., and visited GameStop, Sunglass Hut and the mall's carousel. The health department said there is no current risk of exposure by visiting those locations now.
The new cases include three reported Monday in Southern California, including two in San Bernardino County and one in Long Beach.
Disney officials have said they are working with public health authorities to provide any necessary assistance.
