Of course. We wouldn't dream of keeping you from your nakama.

[There's a pause as Bepo and Luffy's earlier conversation plays back for Robin, and then a quiet sigh when she realizes Luffy has mistaken orneriness for illness.]

His brother- and others, admittedly, have been acting uncharacteristically easy to upset as of late. I don't believe it is caused by infection or illness, but I am not well versed in medicine, either.