O-157
E.coli serotype is actually the most common of the Enterohemmorhagic
E.coli forms so I'm not too surprised. Then again these types of diseases by
E.coli are pretty serious. You'd usually get them from contaminated food and bad preparation so it really calls the chain's sanitary conditions into question.
Also,
E.coli isn't going to stop me from enjoying a good plate of sisig.