Illinois Governor's Office issued the following announcement on Nov. 6.
The Governor's Office was notified this afternoon of a recent exposure to COVID-19 and as result of that possible exposure is currently conducting contact tracing and following all necessary health protocols from IDPH. The exposure was the result of an external meeting with the Governor that took place on Monday in a large conference room in the Governor's Office. The Governor was tested today and his results will be made public when available. The Governor is currently isolating pending his test results.
Original source can be found here.