[1/4] A health worker registers a resident for a nasal spray COVID-19 booster vaccine in Beijing, China December 17, 2022 in this still image obtained from a video. REUTERS TV/via REUTERS BEIJING, Dec 18 (Reuters) – Streets in major Chinese cities were eerily quiet on Sunday as people stayed home to protect themselves from a surge in COVID-19 cases that has hit urban centres from north to south. China is currently in the first of an expected three waves of COVID cases this winter, according to the country's chief epidemiologist, Wu Zunyou. Cases could multiply across the country if people…