(CBS) - About 100 cases of measles in eight states are now linked to Disneyland in California. The spread of the contagious disease has some parents calling for schools to keep non-vaccinated kids out of the classroom, except for those with medical exemptions.
"We rely on the people who can be immunized to protect the rest of the population," said parent Carl Krawitts.
The Krawitts worry about their son Rhett who can't get the vaccine. The 6-year-old is in remission after fighting leukemia and his immune system is too weak to handle the vaccine.
"Let's get ahead of it," Carl said.
The measles outbreak that started at Disneyland in California has grown to 95 cases in eight states, including Michigan, Arizona, Utah, Washington, Colorado, Oregon, and Nebraska.
In Arizona, state health officials are keeping an eye on as many as 1,000 people including nearly 200 children who may have been exposed after a woman with measles visited an urgent care center.
Dr. Tim Jacks' daughter, Maggie is among those being monitored. She is battling leukemia and also can't be vaccinated.
"The father side of me is... angry and wanting to protect my family," said Dr. Jacks.
Experts say the outbreak is cause for concern, considering measles is so highly contagious.
"We've given people a false sense of security and it's situations like this, outbreaks like this that really remind us of the importance of these diseases and really the benefit of vaccine," said Dr. Deborah Lehman of Cedars Sinai Medical Center.
Most of those infected had not been vaccinated.
The U.S. experienced a record 644 measles infections last year in 27 states.