Health and Safety Code § 120215

Upon receiving information of the existence of contagious, infectious, or communicable disease for which the department may from time to time declare the need for strict isolation or quarantine, each health officer shall:

(a) Ensure the adequate isolation of each case, and appropriate quarantine of the contacts and premises.

(b) Follow local rules and regulations, and all general and special rules, regulations, and orders of the department, in carrying out the quarantine or isolation.