Alexia, the Long-Awaited Prodigy Part 2 is an article in Resident Evil Recollections. It was uploaded on 7 August 2015.
Alexia's experiments with the T-Veronica virus and her father are a failure overall, but in true entrepreneurial spirit she is eventually able to harness its power using the valuable data gleaned from the very same experiments.
She makes use of her loyal but otherwise untalented brother to protect her as she enters a 15 year sleep in order to allow her body to adapt to the effects of the virus.
Alexia emerges from her sleep as one of the most powerful enemies in the game, on par with the likes of Wesker himself.
You can find out more about Alexia and her history in Resident Evil Code: Veronica, an absolutely essential chapter in the series.