China rolls out anal swab Covid-19 test, saying more accurate than throat method(washingtonpost.com)
washingtonpost.com
China rolls out anal swab Covid-19 test, saying more accurate than throat method
https://www.washingtonpost.com/world/asia_pacific/anal-swab-china-coronavirus/2021/01/27/cc284f56-6054-11eb-a177-7765f29a9524_story.html