Ginny got taken to Moody's (I'm assuming) because she got hurt yesterday right as they were transporting people. She'll be disoriented when she wakes up (re: her latest journal entry) and someone will need to make sure that she stays in bed because yes she is actually hurt, but no she does not make for a good patient. Sorry healers.
She's infected, but not quite feeling the full effects until late in the morning. She'll be mostly on the fever/vomitting end of the spectrum. She's hallucinating vaguely but she's mostly aware that her visions aren't real because she's seen enough of the sick people to know that she can't trust her eyes. This ends up being a slight problem because she doesn't believe anything she sees and well...yeah.