Lily's flu: a special kind of H1N1?

Lily has stayed home for the last two days and will remain here tomorrow too because she came down with some fever in her class on Monday. But as always, her symptoms were extremely short-lived (no more fever yesterday and today) and she remains her joyful self through it all. Is it a regular flu or the new H1N1 variety? I have no idea, but all I can say is that her Happiness is at Level 1 and her Niceness is at prime level 1 as well...!