Leading Welsh doctors claim nicotine patches could offer hope of a possible treatment for coronavirus.
Jonathan Davies, consultant orthopaedic surgeon at the Royal Glamorgan Hospital, Llantrisant, said the "powerful" drug has the potential to block the virus from entering cells.
The research, which was created with two of his colleagues, was published in the British Medical Journal (BMJ) and has received recognition from leading physicians in Wales.
The treatment option is now being looked at by scientists in France who carried out a study involving nearly 500 hospital patients in Paris.