I'd be more worried about the boyfriend, since he's likely to be exposed to anything she has after this "bike ride". Should she suddenly starts to develop symptoms ... if she's in denial ... and not being a professional heath specialist educated about Ebola, he won't be watching symptoms as closely as she is. And he has a bike to ...
Would you recognize him if he came in to have his smeary bar tape changed? Maybe you should start wearing surgical gloves and mask for awhile ...