He said: ‘The thing was built with French help, so don’t think that there aren’t some monitoring devices in there. I think what you are going to find out is that these guys were doing experiments which they weren’t fully authorised [for] or knew what they were doing and that somehow, either through an inadvertent mistake, or on a lab technician, one of these things got out.

‘It’s not that hard for these viruses to get out. That is why these labs are so dangerous.

‘You essentially had a biological Chernobyl in Wuhan, but the centre of gravity, the Ground Zero, was round the Wuhan lab, in terms of the casualty rates. And like Chernobyl, you also had the cover-up – the state apparatus reports to itself and just protects itself.’