World’s most contagious disease rips across California — as more than 100 kids feared exposed in major city
Sacramento health authorities are raising alarms after more than 100 children may have been exposed to measles at an educational enrichment program.
The concern stems from an unvaccinated child who attended the program in Sacramento County last week while infectious. Officials now estimate that up to 130 children could have been exposed. The program has temporarily closed its facility following the incident.

“Measles, one of the most contagious infections, can lead to severe, life-long consequences, including permanent brain damage, and can also be fatal, especially for children,” said Dr. Erica Pan, CDPH Director and State Public Health Officer, in a March 6 statement.
She emphasized the importance of vaccination: “The measles-mumps-rubella (MMR) vaccine is safe and provides long-lasting protection against measles. Vaccination protects both our own families and those who are too young to be fully vaccinated.”
Since late February, at least six measles cases have been confirmed across Sacramento and neighboring Placer County.
The outbreak also affected a local hospital. One infected child was treated at the Kaiser Permanente Roseville Medical Center on the morning of March 2, prompting staff to track down every patient and employee who was in the facility during that time.