Ghost boy runs by at Childrens Hospital in Philadelphia

I was staying overnight at Childrens Hospital in Philadelphia. As my son was being treated for the onset of asthma, during the night me and him were in our room with the door shut. He was playing with the curtains so I decided to tape him. As I was taping him I didnt see nothing just him playing in our room. As I was playing my videos one night I noticed something run passed, at first I just thought it was my sons stroller handles, but as I continued to watch the video over and over I could see a boy run passed! Check it out the boy runs by at around 7 seconds into the video! You never know who else is in the room with you!