HIV Positive Acrobatic Catcher - Direct Threat or Not?

The headline in the S.F. Chronicle, Cirque du Soleil accused of firing HIV-positive gymnast, tells the story. Clearly, Cirque du Soleil, the very popular modern day circus, was aware of the ADA since according to the article, the letter terminating the employee did so because he represented a "direct threat" to the safety of others. Although there aren't that many openings for acrobat catcher, if this case goes all the way through the courts, it could provide another chapter on what jobs, if any, are off limits to HIV positive employees.