US officials ask China not to subject staff to Covid-19 anal swab tests
Shanghai, China (CNN)US officials in China have asked local authorities to refrain from subjecting US staff in the country to Covid-19 anal swabs, according to a US diplomat based in China.
On Thursday, China responded to a Vice News report which claimed that US diplomats in the country were complaining after having been administered the swab tests.
"The
State Department never agreed to this kind of testing and protested
directly to [China's Ministry of Foreign Affairs] when we learned that
some staff were subject to it," a state department spokesperson told CNN
in a statement on Thursday.
"We
have received assurances from [the ministry] that this was in error and
that diplomatic personnel are exempt from this testing requirement. We
have instructed staff to decline this test if it is asked of them (as
was done in the past)," the statement added.
China's Ministry of Foreign Affairs said it was unaware of anal swab tests being administered.
"As
far as I know, and I have also checked with my colleagues, China has
never asked US diplomats in China to take anal swab tests," ministry
spokesperson Zhao Lijian told reporters at a daily briefing on Thursday.
The
US diplomatic source told CNN that US representatives in China have
been "negotiating with the Chinese for a while" to avoid their staff
being subjected to such tests.
Chinese
state media have been reporting in the last few weeks that anal swab
tests were being used in some cases. Some doctors and studies in China
consider them more reliable than nasal or throat swab tests.
"Some
asymptomatic patients or those with minor symptoms recover fast [from
Covid-19], and it's possible that throat tests won't be effective for
these people in three to five days," Li Tongzeng, an infectious disease
doctor in China, told CNN.
"Researchers
have shown that for some infected people, the duration time of positive
nucleic results lasted longer on their excrement and anal swab test
[samples] than those on the upper respiratory tract. Therefore, adding
anal swab tests can improve the positive detection rate of the
infected," he said.
It is unclear whether anal swabs are more efficient at detecting Covid-19.
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