Avoiding the killer that's everywhere

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Imagine a life where the weekly grocery shop could be a death trap. For those allergic to corn, even putting petrol in the car or going for a run could kill. Christine Robinson from Pennsylvania takes us shopping and shows how she negotiates aisles full of fruit, vegetables, meat, eggs and water - all of which are out-of-bounds for her - and what her alternatives are. (Image: An ear of corn with a biohazard label on it. Credit: Ann Cutting/ Getty Images)