The Port Health Office enforces measures in the Quarantine and Prevention of Disease Ordinance and the International Health Regulations to prevent the introduction of quarantinable diseases into Hong Kong by air, land or sea. No cases of plague or yellow fever were reported during the year.

    The Travellers' Health Service, launched in July 2000, provides a 'one-stop' service to outbound travellers that includes immunisation, preventive medication, travel health risks assessment and advice. During the year, 2 198 travellers were served. Timely information on various travel health topics and health alerts is also provided to the public through the bilingual travel health website.