Dr Andrew Huff, former vice president of EcoHealth Alliance, claims to have had a ringside seat to what he brands one of the greatest cover-ups in history – and the “biggest US intelligence failure since 9/11“.

The Wuhan Institute of Virology – a high security lab specialising in coronaviruses – has been in the eye of the storm as questions rage over whether Covid could have escaped from its lab.

Both China and the lab have furiously denied any allegations – but evidence of a lab leak has been piling up over the last two years as scientists, researchers and governments hunt for answers and step forward with evidence.

Dozens of experts have suggested Covid could have escaped from the Wuhan lab through an infected researcher, improper disposal of waste, or potential breaches in the security at the site.

Even the head of the World Health Organisation reportedly believes Covid did leak from the lab after a “catastrophic accident”.