The Hong Kong Hotels Association has urged members to improve handling and storage of food after food poisoning outbreaks at two hotels.
'If this happens again and again, it won't be good for our industry,' said James Lu Shien-kwai, the association's executive director.
His warning came after buffet diners at the Wharney Hotel in Wan Chai fell ill on July 28 and 30, and about 91 people became sick after eating at the Regal Riverside Hotel in Sha Tin earlier last month.
Health officials were still investigating the food history of the Wharney victims yesterday but vibrio parahaemolyticus, a diarrhoea-causing bacterium of the same family as cholera, was found.
The cause of the Regal Riverside outbreak was contamination and failure to keep food at a proper temperature.
Mr Lu said special attention should be paid to food that needed to be kept at low temperatures.