CARLSBAD, Calif. — A dozen Pacific Ridge School teachers and students have returned to California after people they were traveling with tested positive for swine flu during a trip to China.

The group landed at Los Angeles International Airport last night after being quarantined in China for a week, and another group was expected later yesterday, bringing the total of those who have returned to 29.

School spokeswoman Anne Carr said there are still five students in a Chinese hospital awaiting final test results before they can be released.

A teacher stayed to supervise them.