Coronavirus: China reestablished anal swabs to detect the disease

China reintroduced the controversial tests of anal swab for covid amid spread of Omicron variant , already two weeks before the start of the Beijing Winter Olympics. Anal covid tests involve place a two-inch-long cotton swab inside the rectum from a patient, rotate it, before removing it and sending it to a laboratory for analysis. The method became prevalent in Beijing after a nine-year-old boy tested positive in January 2021, but the swabs became a point of contention in March 2021 when their use was expanded to foreign travelers visiting the city. Beijing's epidemic control department said at the time…