Doctors weren't able to diagnose the whooping cough that killed the daughter of Chelsea Thompson and Todd Haynes until two days after she died.
The couple spoke to ITV News' Medical Editor Lawrence McGinty.
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The Queen was in reflective mood this Christmas, choosing reconciliation as her theme and taking a quite direct personal approach.
Quickly turning cold this evening with a widespread frost developing under clear skies, some fog patches too.
The Queen says she is "deeply touched" by the "selflessness" of medical staff fighting the Ebola outbreak in her annual Christmas speech.