Over in China, they have a new method to test for COVID-19: the ol' bend over and cough maneuver. The video below is a demonstration (in Chinese) of how to have the test administered.
Insert swab in saline solution, then insert in bum. Much like the current Covid-19 test, it has to go in a bout and inch (and has to be twisted too). These tests are being touted as the most accurate method for detecting Coronavirus. They can be done by a medical professional or self-administered, you choose.