Mukesh Haikerwal knows all too well the danger of a food allergy. It was 14 years ago that the Melbourne GP and former president of the Australian Medical Association first recognised symptoms of anaphylaxis in his then one-year-old son.

''As a father it was horrendous,'' he says. ''You have this child that won't settle and then you take off his top and he was beetroot red. I knew straight away it was an anaphylactic reaction.''

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