3 July 2019 - It has taken decades of work and billions of dollars, but Australia is now entering an exciting phase of personalised medicine, leading to results which once seemed impossible.

Better treatments or even cures are already happening or are just around the corner, thanks to complex genomic testing and gene therapy.

Genomics has changed the lives of Hayden Smith, 16, and his brother Tyler, 12, from Melbourne.

Both boys developed a mysterious condition which meant they spent a lot of time in hospital being treated for a range of conditions including asthma, allergies and serious bowel problems.

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