Little Harmonie-Rose Allen, one, was struck down with the killer bug just ten days after taking her first faltering steps in September last year. Doctors told her worried parents, Freya Hall and Ross Allen, that it was one of the worst cases of the virus they had even seen and warned she may not pull through. Despite having just a ten per cent chance of survival, Harmonie, from Bath, Somerset, proved doctors wrong by fighting off the illness.