Strengthened surveillance: More than 300 staff from 14 organisations took part in an infectious-disease drill at Hong Kong International Airport.

More than 300 staff from 14 organisations have taken part in a drill at Hong Kong International Airport to test the effectiveness of contingency measures for handling infectious disease outbreaks.

Airport Management Director Howard Eng said recent human cases of avian flu reported in the region show the disease remains a public-health threat.

"We must remain vigilant against the possible occurrence and spread of infectious diseases at the airport. Today's exercise presented an excellent opportunity for all relevant parties to practice our contingency procedures and collaborative responses in the event of an avian flu incident."

The exercise simulated an arriving flight with 56 passengers and five crew on board, reportedly carrying a sick passenger suspected to have avian flu. The aircraft was isolated and disinfected while the Department of Health quarantined passengers and crew.

The Airport Emergency Centre was immediately activated to co-ordinate contingency procedures. While the sick passenger was transported to Princess Margaret Hospital for isolation and treatment, other passengers and crew were escorted to designated isolation areas for further assessment and subsequent management.

The Airport Authority holds about 30 drills a year to assess the efficiency and effectiveness of the airport's contingency-response mechanisms. Detailed reviews and assessments are conducted following each drill, and enhancements made as necessary.