In addition, in accordance with the latest arrangement, persons who resided in the same building as the case tested preliminarily positive carrying variant of concern suspected to be Omicron are required to undergo compulsory testing on days 2, 3, 4, 7, 12 and 19 counting from the day subsequent to that when the relevant confirmed case last stayed in that building before being admitted to hospital for treatment or leaving Hong Kong. The Home Affairs Department has set up a hotline (Tel: 2835 1473) which starts operation at 7.30pm today for residents restricted by the declaration to make enquiries and seek assistance. The Social Welfare Department will also provide assistance to the affected persons.