VANCOUVER -- A Lower Mainland school has closed its doors for two weeks after recording a cluster of COVID-19 cases. Cascade Christian School, an independent school in Chilliwack, confirmed seven cases of the disease. The school didn't confirm whether the cases were among students or staff. The school informed Fraser Health over the weekend it was closing until Feb. 5 out of an abundance of caution. "In a school environment, if a student or teacher receives a confirmed positive COVID-19 test result, Fraser Health Public Health follows a rigorous protocol," the health authority says. Fraser Health defines a cluster as two or more individuals with lab-confirmed COVID-19 infections who were at the school during their infections period. Those cases may be linked to school-based transmission. An outbreak isn't declared until transmission is likely widespread in the school.