It's good to know you are up on tour medical protocols. You know what symptoms he had, when he had them and why not just the Bulls medical staff, but the emergency room staff, infection disease staff and OR staff all agreed it was the right call.
What you don't seem to understand is that even though he didn't have meningitis, making sure he didn't have it was the correct protocol. Just because the anesthesiologist made a mistake doesn't make the decision.
I do not always defend the medical staff. I've pointed out many times where I don't think they did what they should have. However I look at each one objectively and make a decision. I don't have a blanket "of course they are wrong" view of everthing.
edit: forgot to address the where luol Deng is from comment. It os possible to have meningitis, be asymptomatic for awhile then have symptoms especially under physical stress, like a long playoff run where he played an abnormally large number of minutes.