A person that probably can't spell "Epstein Barr Virus" shouldn't be allowed to post about Mononucleosis.
Let alone those who apparently have no knowledge whatsoever about the disease.
For the upteenth time - the degree to which an individual gets affected by the virus varies enormously. Tons of folks who get infected don't even notice it, plenty of others - the unlucky ones - get floored for months or even longer.
And even in mild cases it will obviously have an effect on a professional sportsman's training schedule. It obviously affected Federer's training, and it might well be that Roddick's mediocre results of the past couple of months have had something to do with his 'lighter' case of mono as well.
Ancic' case was of course a really terrible one, eventually leading up to the end of his professional career as a tennis player. I can only keep my fingers crossed for Robin that it won't end up the same for him, but the longer he needs to recover, the worse his outlooks become... get well soon, Robin!