They are waiting for the results of tests to make sure it doesn't have a virus or bacteria that could infect other whales in Canada.

The whale, called Springer, was captured last week in Puget Sound and is being held in a pen at Manchester. Officials hope to reunite her with her pod next month in Johnstone Strait.

The National Marine Fisheries Service held a news conference Friday to discuss the whale.

Experts say she's doing well and has already been treated for worms. A skin condition also is improving.