“We were at the edge of divorce when I decided to try this. Years and years without delight of orgasm and sexual satisfaction. This could ruin any life but not ours. Viagra worked and I always keep the pill near my bed as nobody knows when my wife asks ...

“Why I did not hit up on Levitra sooner? I followed about entangled in great offer of different drugs to make the most important male organ working but when I came across Levitra it hit me like a hunderbolt. I could not ask about better results.”

STIs are particularly common among young people, with health experts saying testing for them is vital.

IAVI, Moderna and the University of Oxford are all working on new vaccines.

BBC Panorama has seen documents and spoken to former midwives from Nottingham University Hospitals NHS Trust.

The drug, daraxonrasib, has been hailed as a breakthrough in managing the deadliest of all the major cancers.