SEATTLE, Wash. (KABC) -- Seattle school officials warned students they wouldn't be allowed back to class after winter break unless they have all their vaccinations.
Earlier this year, Washington state voted to get rid of the personal exemption for the measles, mumps and rubella vaccine after a measles outbreak sickened 87 people.
RELATED: New state law will make it harder to get exemptions from measles vaccine
Approximately 2,000 Seattle students don't have the required shots.
The district is hosting free immunization clinics to get everyone up to date.
The Los Angeles Unified School District has one of the highest exemption rates within school districts in California.
MORE: Widespread flu activity reported in California. Is it too late to get a flu shot?
Over the last year, figures show that nearly 400 schools in the LAUSD had kindergarten immunization rates that didn't meet the recommended 95 percent rate for herd immunity .
Seattle schools warn students they wouldn't be allowed back to class unless they are vaccinated
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