It can be lonely as a journalist when you dare to challenge conventional wisdom – especially if taking on two superpowers and some of the world's top scientists over the cause of a pandemic.

So it has been gratifying to see the steady acceptance of my argument – backed by investigations in harness with fellow dissidents around the world – that it was foolish to ignore the hypothesis that Covid-19 might have leaked from a laboratory.

Few serious people now dismiss this concept, despite China's continuing cover-up – especially after the CIA joined the FBI and US Department of Energy in stating that the startlingly well-adapted coronavirus was 'more likely' to have come from a Wuhan lab than to have spilled over from animals.

This view is shared by German intelligence and France's academy of medicine. And given the pandemic's lingering impact, we should pursue the truth remorselessly to protect the future world.

Yet this hypothesis was branded racist and a conspiracy theory when I started to unravel Covid's emergence six years ago.