The actor contracted Covid on New Year’s Eve, with his whole family – his wife Fiona Hawthorne and their four children – falling ill with the virus.
Salmon was eventually admitted to hospital and has insisted he wouldn’t be here had he not gone in for treatment.
The 58-year-old, best known for playing MI6 deputy chief of staff Charles Robinson in three Bond films, credited the work of doctors with saving his life.
He told Hello! magazine: ‘I felt as if I was slipping away.
‘If I hadn’t gone to hospital, I wouldn’t be here now.’
Painter and illustrator Hawthorne also revealed how she was diagnosed with a rare lung condition, interstitial lung disease, two years ago, leading her to use an oxygen tank.
Doctors warned her that her condition made her more vulnerable to Covid-19.
She said: ‘I felt flattened and had a thumping headache. Although it exacerbated my condition, I came through it.
‘I’m finding ways to live with it positively. I don’t want my illness to define me.’