Communicable Diseases Act, B.E. 2558 (2015) · Chapter V Communicable Disease Surveillance

Section 31

In the case of occurrence of a dangerous communicable disease, a communicable disease under surveillance or an epidemic, the following persons shall notify a communicable disease control officer:

(1) in the case where a person infected or reasonably suspected of being infected with such communicable disease is found in a house, an owner of the house or a person in charge of the house or a physician who provides treatment;

(2) in the case where a person infected or reasonably suspected of being infected with such communicable disease is found in a sanatorium, a person responsible for the sanatorium; (3) in the case where medical or veterinarian examination has been conducted and it is found that a pathogen which is a cause of such communicable disease may exist, a person who conducts the examination or a person responsible for the place where the examination takes place;

(4) in the case where a person infected or reasonably suspected of being infected with such communicable disease is found in a business facility or any other place, an owner or a person controlling such place.

The criteria and procedures on the notification under paragraph one shall be as prescribed in the Notifications by the Minister with the approval of the Committee.

Unofficial English translation by the Division of Legal Affairs, Department of Disease Control (August 2025); the Thai text prevails.