Hong Kong at risk of Omicron wave after 2 local Covid-19 cases tied to Cathay aircrew member infected with variant

• Health chief Sophia Chan calls local infections ‘extremely worrying’, adding: ‘We must all do our part and stop a fifth wave outbreak’
• Anyone visiting restaurants, cinemas and gyms, among other venues, must have at least one shot of vaccine against Covid-19, beginning before Lunar New Year