Anal Swab Covid-19 Test Presentation

China introduced the new testing method, which involves inserting a swab 1.2-2 inches into the rectum, and the authorities say it can detect the virus more accurately than oral or nasal methods. They added the technique is used only in high-risk cases. According to Chinese State TV, anal swabs won't be used as widely because the method isn't as "convenient". Let's just leave it at Presumable viral infection one can more accurately detect with an anal swab?!?