“To my knowledge… China has never required US diplomatic staff stationed in China to conduct anal swab tests,” Foreign Ministry spokesman Zhao Lijian told a daily press briefing on Thursday.

Zhao’s comments come after US news outlet Vice cited a US State Department spokesperson on Wednesday who said that Washington had protested directly to the Chinese Ministry of Foreign Affairs after hearing that American diplomatic staff had been subjected to anal swab testing.

Washington complained that the practice was “undignified” and Beijing responded, claiming the tests were given “in error” and promised that diplomatic personnel would be exempt from the practice, the spokesman told Vice.

“We have instructed staff to decline this test if it is asked of them, as was done in the past,” the spokesman added.

It is unclear how many American diplomats and their families were subjected to the practice.

ALSO ON RT.COMThink it couldn’t get any worse? China rolls out ‘more accurate’ ANAL SWABS for Covid-19 testing (VIDEO)In January it was reported that China had started using anal swab testing to check for Covid-19, believing the method was more accurate than conventional nose and throat swabs.

According to China’s National Health Commission, the test is conducted by inserting a cotton swab three to five centimeters into the rectum.

Chinese authorities were forced to comment earlier in February after a video went viral that showed a group of individuals waddling like penguins purportedly after receiving anal swab tests. Beijing labeled the video a “fake.”