“This is my second time that I used Levitra. It is ok medication able to solve my erection problems. It worked me up as with other similar drugs I was lost.”

“I take 20 mg Cialis pill and it works as expected but after sexual intercourse I sometimes feel muscle pain in the back and fatigue. I do not know if this is because I work like a stud or it is a side effect. Anyway I am lucky that I gave it a try.”

It comes as the World Health Organization warns of deaths and cases increasing at a "worrying rate".

The UK's vaccine advisers encourage them to discuss the risks and benefits with their doctor.

Scientists confirm they have made "chimera" embryos from long-tailed macaques and humans.

The 21-year-old university student spent 58 days in hospital, including in intensive care.