The Maryland Jockey Club announced on January 23 that the quarantine on Barn 20 was lifted after the second test on English Tudor came back negative for Equine Herpesvirus-1 (EHV-1). English Tudor had tested positive on January 19 and the Laurel Park barn were he had been stabled was put under restrictions. All restrictions have been lifted allowing horses in that barn to train and race.

In addition, the self-imposed quarantine at the University of Pennsylvania New Bolton Center has also been lifted.