Faegre Drinker Biddle & Reath on Tuesday closed all 22 of its offices for the day amid concerns that personnel in its Washington, D.C., office were potentially exposed to COVID-19.

None of the firm's lawyers and staffers have tested positive for the coronavirus, but a person who attended a recent event at Faegre Drinker's Washington office did, the firm said in a statement. As a result, the firm's executive leadership decided Monday to close the firm's offices.

"Because the health and safety of our personnel and clients is our top priority, Faegre Drinker is temporarily closing its D.C. offices. As a measure of caution, our leadership team has also taken the step of closing our global offices on March 10 while we evaluate this situation," the firm said in its statement.