The Visalia Unified School District believes preparation is key when it comes to the youngest students starting school.

The 8-week initiative aimed to help students who struggled in pre-K classes, which focus on early literacy and math skills as ...

Southern California has generally fared better. Of the nearly 130,000 kindergarten students in Los Angeles County, more than 97% received two or more doses of the MMR shot last year, the data show.

In Santa Cruz County, 91.8% of kindergarten students were vaccinated against measles last year, a rate that has declined from 94.1% two years earlier, state data show.