In fact some journalists have asked. A number of times.
It is a virus (herpes, indeed) which you get when you have a week imunity system and which is aggravated in stress situations and when you're tired.
She has medicine for it (prescribed by a doc) but she refuses to take them, because she's 'scared of' medicine.
Really she (and her coach) explained it on different occaisons already.
J u s t i n e x p l i c a b l e
Justine: feb. 5, 2007:
"I hung on to tennis. I have done so for the past 20 years. It is something that is in me, it is me."