CORRECTS TO SWAB, NOT NASAL SWAB - Security guards set up the barricade line as people line up to get a swab for the COVID-19 test to meet traveling requirements at a mobile coronavirus testing facility outside a commercial office buildings in Beijing, Sunday, Jan. 16, 2022. Beijing has reported its first local omicron infection, according to state media, weeks before the Winter Olympic Games are due to start. (AP Photo/Andy Wong)