We've all experienced it at least once in our lives: That sudden onset of queasiness that quickly escalates into a full-fledged gastro-intestinal apocalypse. Fortunately, for most, food poisoning runs its course in about 24 hours with no lasting effects.
For some, however, it can be much worse than a day or two of misery. Food poisoning can lead to life-threatening complications - including dehydration, kidney failure and widespread organ failure in those with vulnerable immune systems. Those most at risk include: