HONG KONG -- When Ms. Cheung's rapid antigen test for COVID-19 turned up positive, the Hong Kong freelance writer had a decision to make. She could notify the authorities as required, or hunker down at home.

Hong Kong Chief Executive Carrie Lam's administration has been criticized for frequent U-turns as it fights a wave of omicron-driven COVID-19 cases and deaths. © Nikkei montage/Source photos by Reuters and Getty Images
Deadly omicron wave dents city's global status, while mainland fights spillover