Julie Bailey, founder of Cure the NHS said: "This is the worst report in the history of the NHS.
"Hundreds of people have lost their lives and nobody has been held to account for those failings.
"It's about time that somebody was held to account."
More top news
George Osborne has recruited former Labour minister Lord Adonis to spearhead efforts to get Britain building again.
More than 20 people are feared injured after a British millionaire crashed his supercar into a crowd at a motor show in Malta.
Police snipers have been seen on Manchester rooftops during the Conservative Party conference.