A Conservative health spokeswoman has said there was "overwhelming evidence that Labour ministers leant on the Care Quality Commission (CQC) watchdog" to "tone down and cover up NHS failure for political purposes".
However, Labour has asked Health Secretary, Jeremy Hunt, to substantiate his claims that Shadow Health Secretary Andy Burnham hid hospital failings in a "cover up".
"It is high time he (Mr Hunt) focused on his real job and the unfolding A&E crisis instead of orchestrating a smear campaign without evidence," a party spokesman said.
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It comes just days after a father streamed himself murdering his daughter before killing himself on the social media platform.
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Liang Sheng-yueh's girlfriend, who was found by his side, died three days before they were discovered.