A cross-sectoral approach will be vital for effective prevention of SARS, Secretary for Health, Welfare & Food Dr Yeoh Eng-kiong says.

Speaking after chairing a specially convened inter-departmental meeting today, Dr Yeoh said it was agreed to redouble cross-sectoral efforts to minimise the risk of the virus' return to Hong Kong.

Calling for concerted efforts from the community to guard against the illness, Dr Yeoh said the recent reoccurrence of confirmed and suspected SARS cases in Guangdong reminds us of the potential threat to our community. There is a need for unabated efforts on all fronts to protect our population.

A new surveillance system has been in place since January 6 to monitor patients with pneumonia symptoms and a history of travel to Guangdong province during the 10 days before the onset of symptoms, he said.

As of yesterday, 39 pneumonia cases have been reported by the Hospital Authority, private hospitals and clinics. None of these have tested positive for SARS.

Dr Yeoh said infection control measures in public hospitals and clinics have been stepped up, and the Agricultural, Fisheries & Conservation Department will continue the surveillance of local wildlife for the virus.

Schools and welfare service agencies have also been reminded to step up precautionary measures.

The meeting welcomed recent initiatives by the Tourism Commission, the travel trade and related industries to prevent the introduction of SARS to Hong Kong.

"Ongoing investigations by the World Health Organisation and overseas health authorities warrant a close watch. It is also necessary to constantly review the adequacy of our precautionary measures in keeping with the latest situations and findings," Dr Yeoh said.

The inter-departmental meeting will follow the developments closely and meet again to discuss further measures if necessary.