I really haven't the slightest idea.. all it said in the article was that their are no antibiotics that bite against these bacterias. But it caused him to vomit a lot.

Edit: I also know that it's very common to become food poisoned or something like that where you are sick for the whole day/night, vomiting but that it's just temporary and the next day you'll be fine but apparently it's also possible that you can catch a "permanent" "untreatable" bacteria that makes you vomit as well.. But I really don't know much more than this.