The Centre for Health Protection has confirmed another 63 people fell ill after eating poon choi bought from Pak Ka Pun Choi in Yuen Long, bringing the total number of people affected to 441.

Two of the affected diners' stool samples tested positive for vibrio parahaemolyticus, a bacteria causing gastrointestinal symptoms.

The 201 men and 240 women aged one to 84, developed fever, diarrhoea, abdominal pain and vomiting about one to 40 hours after eating poon choi on January 29. One patient who was admitted to St Teresa's Hospital has been discharged. Eighty-eight others consulted private doctors and 88 sought treatment from public hospitals.