I've had food poisoning in the past, but with this particular infection, I've never been in so much pain. Absolutely excruciating pain.

That was what John Daniels experienced after being diagnosed with E. Coli, days after he says he bought a wrap from boots, one of those later removed from sale as a precaution because of the E. Coli outbreak. John spent three days in hospital and suffered complications that continued to affect him.

What was going through my mind, especially when I had drips in and the painkillers weren't working, was it something more sinister? Am I actually going to survive this? That's exactly how I felt. At the end, there was one particular night in hospital where I was scared to go to sleep because I thought, I'm not going to wake up.

There have been more than 200 confirmed cases of the Estek strain of E coli. The UK Health Security Agency says one person has died. The blame thought to lie with lettuce in sandwiches and wraps distributed nationwide. Dozens of products were recalled as a precaution. John has now asked lawyers to investigate his case.

It should be safe for the general public to go into a shop and buy a sandwich that isn't going to cause them a serious illness, or in some cases, even worse. It needs to be kept in the public eye that we can't afford to let our food supply They become affected like this.

In response, the sandwich maker Greencore said it had no comment to make. In a statement, a spokesperson for Boots said, In response to Greencore's product recall on the 14th of June, Boots took the precautionary measure of recalling a number of its sandwiches and wraps. There have been no positive results of Estec E coli in any of the Food Standards Agency's testing of our products. Cases are now declining. The UK Health Security Agency says its investigation continues. John Daniels, among those keen to know the answers. Greg Mylum, Sky News.