Oh no, not Ron! Couldn't Hermione have mixed him some kind of potion to make him better?
Apparently Rupert Grint had Swine Flu a few weeks ago (he's all better now). Here's what his rep had to say,
"It has just been confirmed that Rupert Grint has taken a few days out of filming due to a mild bout of Swine Flu. He has now recovered and is looking forward to joining his fellow cast members at the junket and premieres this week and will then return to filming directly afterwards."
We're glad Rupert's okay. We can't wait to see him at the premiere of Harry Potter and the Half-Blood Prince on Tuesday!