Bacon 42, fell ill during a flight from Los Angeles to London in July and the former Blue Peter host was put in an induced coma as doctors battled to save his life.
He recovered after two weeks‘ treatment and was pictured .
Bacon said he was told by doctors that he could have died from the illness, which has still not been diagnosed.
In an interview with The Times, he said he keeps thinking about the worldwide Spanish Flu epidemic of 1918.
He said: “Of course, you think, in 1918 you can die from the flu.
Image: Bacon tweeted a photo of himself in hospital. Pic: Twitter/Richard Bacon
“You can understand why they died – but in 2018, I can go into a hospital, aged 42, be that fit, and have all that modern equipment around me and still nearly die? F*****g hell. I came that close. The first two nights, it was incredibly close.”
Bacon, who has two children, Arthur, six, and Ivy, four, thanked the NHS for saving his life and revealed he is now more health conscious.
He has given up alcohol following the health scare, which he hopes will change his life for the better.
He said: “I‘ve decided to really, really embrace health from here on in.
“I‘ve always drunk too much, I‘ve always drunk too quickly, so I‘m giving up drinking altogether forever as a result of what happened to me.
Image: Richard Bacon left hospital with his wife Rebecca
“Because if I don‘t effect some sort of really, really positive change out of this, then it‘s a giant waste of everyone‘s time… So I‘m using it to effect positive change.
“It‘s something I‘ve been thinking about anyway. I want to do something different, I want to look back in 10, 20 years and think ‘this was the moment I changed my life‘.”