People wearing face masks to help curb the spread of the coronavirus walk by a billboard depicting a cartoon tigers, a Chinese zodiac which marks the upcoming year 2022, at a shopping mall in Beijing, Sunday, Dec. 19, 2021. The omicron variant of the coronavirus has been detected in 89 countries, and COVID-19 cases involving the variant are doubling every 1.5 to 3 days in places with community transmission and not just infections acquired abroad, the World Health Organization said on Saturday. (AP Photo/Andy Wong), APTOPIX