According to a just-received Chinese language text and supported by other sources in China, there has been a presumed laboratory leak of COVID-19 at East China University of Science and Technology on November 12, 2021."

"(A cursory translation of the above indicates that the school has been closed due to a new COVID-19 being released and the whole school has to be tested.)
Allegedly, laboratory workers tested positive for COVID-19 after conducting experiments involving the insertion of COVID-19 genetic material into the bacterium E.coli as an expression vector for COVID-19 proteins.
The text states that East China University of Science and Technology has been closed in relation to COVID-19 infections of laboratory workers.
The Chinese source said that all mention of this event on social media has now been removed by authorities.
That would exsplain the forced anal swabs for "COVID tests"...