The Centre for Health Protection is investigating two food poisoning cases involving 35 people.

Four males and 10 females aged five to 45 developed gastroenteritis symptoms after eating snacks at a school fair on April 26. Thirteen sought treatment from a private hospital while one was admitted to hospital and is in stable condition.

Meanwhile, six men and 15 women aged 19 to 54 fell ill after having meals from a food supplier in their office April 25.

Three sought treatment at Tuen Mun, Alice Ho Miu Ling Nethersole and Tseung Kwan O Hospitals. No hospitalisation was required. Fourteen others sought treatment from private and public clinics.