(Bloomberg) -- CME Group Inc. informed its members of a positive Covid-19 case in someone who’d been in the eurodollar options pit on Sept. 25 and said the trading floor has been disinfected twice since then and will remain open.

CME Group made the announcement in a memorandum to the trading-floor community dated Sept. 28. The individual reported symptoms on the morning of Sept. 28, according to the memorandum, which was forwarded by a CME spokesman.

The eurodollar options pit reopened on Aug. 10 after a nearly five-month closure.

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